JP2008529894A - Active ventilation system for vehicle seats - Google Patents

Abstract

The present invention includes a seat ventilation apparatus having an air diffuser, preferably one having compartments. The air diffuser has a spacer material and a vent on the seating side. A temperature controller and blower having a temperature adjustment device (such as TED) supplies temperature adjusted air. One conduit connects the diffuser to the blower inlet and the other conduit connects the diffuser to the TED outlet. The blower moves air to its TED for its inlet and then moves it from its outlet to the diffuser. The invention also controls the temperature of the vehicle seat by drawing air from the diffuser in the vehicle seat through at least one conduit and blowing temperature-conditioned air through the at least one other conduit into the diffuser. To have a method for The present invention also includes a method of assembling a ventilated vehicle seat, the method comprising inserting a diffuser nozzle into a plug received in a cushion socket or connecting one or more conduits to the temperature regulator. Passing a tether through the manifold of the temperature regulator for fluid connection.

Description

Display of related applications

  This application is based on US Provisional Application No. 60 / 654,032, filed February 17, 2005, US Provisional Application No. 60 / 694,476, filed June 28, 2005, and November 10, 2005. Claim the benefit of US Provisional Application No. 60 / 735,325 of the application, all of which is incorporated herein by reference.

  The present invention relates to vehicle seat ventilation systems, systems, methods of use and methods of manufacture thereof, and more particularly, the invention relates to providing temperature controlled air and ventilation to vehicle seats.

  Due to market conditions, there has been a need for a cost-effective and energy-efficient system for heating, cooling or ventilation of transportation vehicles (particularly vehicle cabins). Known systems include cabin-wide and local systems that provide more direct temperature control or ventilation to vehicle operators and passengers. A typical local system includes a comfort system that heats, cools or vents a portion of the vehicle seat. Even though the seat comfort system works in conjunction with the vehicle's HVAC system, heating, cooling or ventilation is not connected to the HVAC system and is primarily provided by the seat and surrounding components. It may be a complete type. However, known systems are difficult to reliably install in a cost effective manner.

  The present invention solves one or more of these problems.

  The present invention includes a seat ventilator having an air diffuser, preferably one having compartments. The air diffuser has a spacer material and a vent on the seating side. A temperature controller and blower having a temperature adjustment device (such as TED) supplies temperature adjusted air. One conduit connects the diffuser to the blower inlet and the other conduit connects the diffuser to the TED outlet. The blower moves its inlet air to the TED and then moves from the outlet of the TED to the diffuser. The invention also controls the temperature of the vehicle seat by drawing air from the diffuser in the vehicle seat through at least one conduit and blowing temperature-conditioned air through the at least one other conduit into the diffuser. To have a method for The present invention also includes a method of assembling a ventilated vehicle seat, the method comprising inserting a diffuser nozzle into a plug received in a socket of a cushion or connecting one or more conduits to the temperature regulator. Passing a tether through the manifold of the temperature regulator to fluidly connect to.

  The vehicle seat of the present invention includes an air diffuser placed on the surface of the cushion. In certain embodiments, the diffuser is secured on the cushion under the trimmed cover. The diffuser is fluidly connected to the temperature regulator by at least two conduits (ie, at least a first conduit and a second conduit). In order to blow temperature-controlled air (heating, cooling, dehumidification, etc.) into the air diffuser, the blower and the temperature adjusting device work together as part of the temperature adjuster. In certain embodiments, the blower also draws air into the air diffuser.

  Although the description will be primarily directed to the area corresponding to the buttocks and thighs of the occupant of the vehicle seat (ie, the seat portion), it is also contemplated that the present system and method can be applied to the back portion of the vehicle seat.

  It should be understood that the terms “underside” and “seat side” are used for convenience and these terms are used relatively.

  As shown in the embodiment schematically shown in FIGS. 1-3, several devices may be used for both blowing air into the air diffuser and sucking air from the diffuser. In FIG. 1, a first conduit 10 and a second conduit 12 are connected to an air diffuser (not shown). The temperature controller includes a blower 14 and a thermoelectric device (TED) 16. The blower of this embodiment may be a dual impeller type in which two impellers move air in the same direction. A single impeller device may be used, or a device having more than two impellers may be used. Desirably, the two airflows generated by the impeller are independent of each other. This can be performed, for example, by providing the partition wall 18 so as to substantially match the position where the impellers gather. The first conduit is connected to the blower intake 20 for drawing air from the air diffuser. The blower moves this airflow to the disposal side 22 of the TED and exhausts the airflow to a location away from the seated person or recirculates the airflow elsewhere in the system. The blower also has at least another intake 24 for the second airflow. The blower moves the second air stream through the active side 26 of the TED to a second conduit connected to the air diffuser. In this way, a blower (such as a dual impeller blower) draws air from the air diffuser and supplies temperature-adjusted air to the air diffuser.

  In FIG. 2, the first conduit 10 and the second conduit 12 are connected to an air diffuser, and the temperature regulator includes a blower 14 and a TED 16. Here, only a single impeller is required for the blower 14 to generate one airflow first. Part of the air flow goes to the waste side 22 of the TED and another part goes to the active side 26 of the TED. The first conduit is connected to the blower intake 20 for drawing air from the air diffuser and optionally drawing air through an intake vent 28 in a conduit independent of the air diffuser. An optional vent (or valve) can be used to dilute the warm air from the diffuser, possibly with cooler ambient air, improving the efficiency of the TED. The blower moves this air stream to one or both of the active side 26 and the waste side 22 of the TED and preferably separates the air stream. While the waste airflow can be evacuated (or recirculated elsewhere in the system), the active surface airflow typically passes through the second conduit and the air diffuser.

  In another embodiment, FIG. 3, a first conduit 10 and a second conduit 12 are connected to the air diffuser, and the temperature regulator has a blower 14 and a TED 16. Here, the blower has a dual impeller that generates separate airflows by using the partition wall 18. In the figure, the air is shown moving in a plurality of directions (i.e., the impellers are opposed), but the impeller may move the air in the same direction (as in FIG. 1). The first conduit is connected to the blower intake 20 to draw air from the air diffuser, and this airflow is exhausted or recirculated through the outlet 30. The blower also has another intake 32 for the second airflow. The blower moves the second air stream to both the active side 26 and the disposal side 22 of the TED. At least a portion of the airflow from the active side passes through the second conduit and the air diffuser, but the waste airflow is exhausted (or recirculated elsewhere in the system).

  The air diffuser is configured to be placed in or on the seat so as to provide seat occupants with heating, cooling, ventilation or a combination thereof. An air diffuser is any structure, material, combination of materials, and / or combination of structures that provides airflow through an open space but provides a means to support seat occupants. Good. Examples of this type include, for example, US Pat. Nos. 6,629,724, 6,840,576, 6,869,140, 6,976,734, 6,893,086, No. 6,857,697, as well as US Patent Application Publication No. 2002-0096931, which are incorporated herein by reference. Generally, a diffuser has a first surface, a second surface, and a spacer structure therebetween. Desirably, the diffuser is a bag with some or all of its peripheral edges sealed.

  The air diffuser has at least one layer, but preferably has a plurality of layers (such as three layers), and each layer may be a single layer or a plurality of layers (such as a laminate). The multiple layers are not essential, but are preferably attached to each other. The layers may be mechanically attached by sewing, headless nails or snap fit fasteners, but it is preferred to use at least some adhesive (such as hot melt adhesive). Infrared, high frequency, ultrasonic or other bonding or welding methods can be used as well.

  When used, the adhesive may be provided as a net (such as a tape), or may be provided continuously or discontinuously (eg, as a drop such as a spray, or a dab) And so on). The adhesive may include polyamide, polyester, elastomer, urethane, olefin polymer, vinyl, vinyl acetate, (meth) acryl, silicone, epoxy, or combinations thereof. In addition, the adhesive can be prepared as desired for specific manufacturing parameters or conditions. Preferably, the adhesive contains little anti-blocking liquid, foaming additive, process foreign matter, etc. that may interfere with the adhesive performance. For example, one suitable hot melt adhesive is a non-woven web sold under the trademark SPUNF AB by Spunfab Limited in Muffin Lane 175, Kuyahoga Falls, Ohio 44223, USA .

  Instead of or in addition to mechanical attachment mechanisms and adhesives, a welding method may be used to deposit one or more layers, the welding method alone or other deposition methods (sewing Used together with a stopper and / or an adhesive). Exemplary welding methods include infrared, high frequency, and ultrasonic welding. These methods can be used continuously (eg, forming beads) or as spot welds.

  The layers of the air diffuser are attached to each other at least at the edges to form a bag with sealed edges. In another embodiment, the diffuser may be a laminate with open edges, which is consistent with the teachings of, for example, US Pat. Nos. 6,869,139 and 6,857,697. These are hereby incorporated by reference. Each layer of the diffuser generally has the same extent, but it is also suitable if some layers are not spread the same as other layers. For example, multiple blocks of spacer material may be carried on a common substrate.

  In one embodiment, the diffuser open space is one or more plenums. An example of an air plenum is described in US Pat. No. 6,786,541 to Haupt, which is incorporated herein by reference.

  In another embodiment, the diffuser open space is in the spacer material, this second embodiment being preferred. In one embodiment, the air diffuser is placed on the occupant side of the cushion and the diffuser should not collapse completely under the weight of the seat occupant, but some elastic compression should be assumed. In another embodiment, the air diffuser is placed on the underside of the seat cushion. In this case, the diffuser does not need to support the weight of the occupant and thus does not have to be very strong.

  The spacer material can be formed from rubber, plastic, natural fiber, or a combination thereof. In one aspect, the spacer material can comprise a reticulated foam.

  Also, the spacer material preferably comprises a plurality of members or fibers that are spaced apart from each other so as to form an open space therebetween, but are close enough to provide cushioning and support. May be. One preferred spacer is formed from strands of polymer (such as polyester) that are woven together to provide opposing honeycomb structures (such as fabric panels), while these form an open space between the structures. In order to provide cushioning and support, they are interconnected by several additional polymer strands. For example, one suitable material is sold under the trade name 3MESH and is commercially available from Mueller Textile GmbH, Germany, or Mueller Textile Ink, Rhode Island, USA.

  Other suitable spacers are formed from a helical polymer material held between two sheets of material. Preferably, the spiral is oval so that the area of the spiral is large in order to attach the spiral to the sheet-like material, but a circular spiral is also suitable. The spiral can be tightly wound so that adjacent windings of the spiral are in contact with each other, or can be loosely wound so that adjacent windings of the spiral are not in contact with each other. In general, to form a spacer, a plurality of spirals are placed adjacent to each other (in contact with or otherwise). Exemplary helical materials are described in International Patent Applications PCT / DE04 / 000540 and PCT / DE04 / 000541 filed on March 17, 2004, which are hereby incorporated by reference. The spiral material may be used alone or in combination with other materials so that it does not interfere with the flow path in the air diffuser.

  Other suitable spacer materials are fluted materials that can be adapted to the system. The grooved material has a plurality of peaks and valleys, and the peaks have through holes. The grooving material can include any suitable material, such as molded or molded foam or plastic. The through hole can be formed before, simultaneously with, or after the formation of the peaks and valleys. Airflow toward or from the spacer material is sent to the through hole, while the valleys provide a path that is substantially orthogonal to the through hole through which the air flows. This increases the flow of air (such as temperature-adjusted air) through the diffuser and supports the occupant as desired by the foam. See, eg, US Patent Application Publication No. 2005-0067862, which is hereby incorporated by reference.

  Another suitable spacer material may use a metal or plastic spring placed parallel to the occupant face of the cushion.

  By combining the materials described above, an open space of the air diffuser can be formed. In one embodiment, a plurality of helical materials are placed adjacent to each other, and a polymer strand material is used in the remainder of the diffuser. In another embodiment, the portion of the air diffuser changes the spacer material used. For example, the blower portion of the diffuser has a foam (such as a reticulated foam), but the suction portion of the diffuser may have a polymeric strand material.

  The diffuser spacer material generally has the same extent as the cushion occupant contact surface, but this is not required and the spacer covers only a portion of the cushion occupant contact surface, or the cushion. You may protrude over the edge of the.

  In addition to the air plenum or spacer material (or combinations thereof), one or more barrier layers may be used. The barrier layer is typically formed from a plastic or polymer material that softens or melts when exposed to heat to facilitate adhesion to one or more other layers of the diffuser. In other embodiments, the barrier layer may be formed of a fabric, a woven or non-woven material (such as Gore-Tex®, microfiber, etc.), nylon, closed cell foam, or other material. Preferably, the barrier layer is at least partially impermeable to air, with the exception of multiple holes and ports for ventilation. The barrier layer is disposed above and below the spacer material and facilitates the direction of air flow through the spacer material (eg, through the port to the vent or vice versa). In one embodiment, the barrier layers can be sealed together to form a trimmed bag with sealed edges.

  The barrier layer is preferably about 0.1 mm to about 2.0 mm thick, more preferably about 0.7 mm to about 1.0 mm thick. Of course, the barrier layer may have various thicknesses, and may have a thickness outside the above range.

  The ventilation hole of the barrier layer allows fluid to communicate between the diffuser (or a section of the diffuser) and the seated person, and is usually provided on the seated person side of the diffuser. The ventilation holes are preferably variable in size so as to create a gradient of airflow across the diffuser. Typically, the ventilation holes near the diffuser port are smaller than the ventilation holes away from the port, but this is not required. By setting a gradient in the hole size, the airflow through the diffuser can be selectively controlled at various locations. This also allows the airflow to be substantially uniform throughout the diffuser regardless of the distance from the port.

  In another preferred arrangement, the ventilation hole substantially corresponds to the seat portion where the occupant contacts the seat. In the case of a diffuser provided on the underside of the cushion, each ventilation hole of the diffuser has one or more through channels in the seat cushion for supplying airflow to and from the seated person. In another embodiment, the diffuser does not have a ventilation hole and the occupant side of the diffuser can be placed on the material above it (cushions, additional spacer material (eg polymer strands or mesh foam), trimmed covers, etc.) It is open to the public. This eliminates the barrier layer for spacer materials, trimmed covers and the like. For the embodiment at the bottom, the diffuser may need to be sealed to the seat cushion so that a proper airflow is obtained between the diffuser and the occupant.

  The air diffuser provides fluid communication between the temperature control system and the diffuser and typically has a plurality of ports on the side, underside, or both of the diffuser. A first conduit and a second conduit are attached to the diffuser through this port and provide fluid communication between the temperature regulator and the diffuser.

  The air diffuser may be divided into a plurality of sections. Each section may form an open space that is independent of the open space of the other sections. In one embodiment, each compartment may be physically independent of the other compartments so that each compartment is a smaller diffuser than the entire diffuser. For example, a diffuser with two to three edges sealed can be used on the cushion seat. For this reason, one common base material actually carries a diffuser with a plurality of edges sealed. Each trimmed bag has a vent and at least one port. In another embodiment, the open space of the air diffuser is divided to form compartments. Dividing the diffuser can be done by placing or forming an air impervious barrier between the compartments. For example, as shown in FIG. 4, the diffuser 50 is divided into three sections 52, 54, and 56. Each compartment has a spacer material (not shown) having compartments separated from each other by a barrier 58. In this embodiment, these barriers are formed by sealing the upper and lower barrier layers of the spacer material.

  An optional layer of the diffuser has a heater. Various types of heaters are suitable for incorporation into the vehicle seat, and any heater could be incorporated into the diffuser. Such heaters generally include flexible electrical heating elements and are preferably thin, flat, non-protruding, or a combination thereof. For example, lay wire heaters, carbon fiber heaters, printed heaters (such as active thermal control (PTC) heaters), thermoelectric heaters, etc. can be used in or on the diffuser, Supported by a backing (eg, a cloth, film, or fabric type substrate). In a preferred embodiment, the heater is a carbon fiber type heater with a backing (such as a non-woven layer). An example of a preferred heater is the trade name CARBOTEX, the German W.W. E. Sold by T Automotive Systems, Inc. An example of such a heater is disclosed in US Pat. No. 6,064,037, issued May 16, 2000, which is hereby expressly incorporated by reference for all purposes. Incorporated. Other exemplary heaters include wires having individually insulated strands and heat-activatable adhesives on the wires, such as US Patent Application Publication No. 2004-0094534 and its It is described in the related application. These are hereby incorporated by reference. A flexible sheet TED-shaped heater and cooler combination may also be an appropriate layer option. An example of a flexible sheet TED is described in US Pat. No. 6,700,052, which is hereby incorporated by reference. In another embodiment, the heater is not incorporated into the diffuser and is provided between the diffuser and the trimmed cover. In one embodiment, the heater has a substrate that is impermeable to air and has ventilation holes. In this way, a heater is used instead of a barrier layer.

  The diffuser is integrally formed in the trimmed cover, whether it is an independent unit assembled in the space between the seat cushion and the trimmed cover or formed integrally with the cushion Or any combination thereof. Preferably, the diffuser is attached to the cushion using double sided tape, hook and loop fasteners, adhesives, mechanical fasteners, welding or any combination thereof.

  The cushion, like the diffuser, has a formed foam van that primarily supports the occupant of the vehicle seat. The cushion may have valleys that are cut or formed in the foam, channels that are open at the top, grooves, passages, secondary passages, conduits, and the like. These channels or the like can be used to accept other parts of the system, including air diffusers, first and second conduits, temperature regulators, and the like. For example, the first conduit and / or the second conduit may be disposed in the channel of the cushion. Further, these channels or the like may operate as the first conduit and / or the second conduit or part thereof. For example, the first conduit may be connected to the underside of the cushion, and the channel through the cushion may be connected to the air diffuser on the cushion occupant side, the through channel and the conduit fluidizing the air diffuser to the temperature regulator. Together form part of the first conduit for connection.

  In one embodiment, the cushion foam is treated with part or all of its surface to reduce the air permeability of the foam to form an air impermeable barrier or through the foam in some way. Helps minimize air loss. In another embodiment, an air impermeable lining or conduit may be placed along with the foam channels to obtain the required flow characteristics of the foam and / or system.

  Also, the vehicle seat preferably has one or more trimmed covers that are part of the diffuser or separate from the diffuser, but generally separate the insert from the occupant. is doing. The trimmed cover can be any material, including but not limited to one of synthetic materials, natural materials (eg, wool, leather, etc.) or combinations thereof. In one embodiment, the trimmed cover is perforated over at least a portion of the seating surface through which air can pass. For example, a seated person and an insert can be separated using perforated leather. The trimmed cover may have additional spacer material (such as reticulated foam). The additional spacer and trimmed cover may have an area that is similar to the diffuser, or may be larger or smaller than the diffuser.

  In addition to the diffuser, the present invention also has a temperature regulator. The temperature regulator may be any device that heats or cools the air. The temperature control device may be a combination of a device that performs heating and another device that performs cooling. Preferably, one device or system provides heating and cooling, such as an external device such as a vehicle HVAC system. In another embodiment, an internal temperature control device may be used, which is independent of the HVAC system for the vehicle where the seat is installed. In addition to temperature adjustment, the temperature adjustment device may perform dehumidification of air.

  Preferably, the temperature adjusting device is a stand-alone device that performs both cooling and heating, a device that uses a semiconductor element, or both. The most preferred device is a thermoelectric device (TED), also called Peltier. TED heats and cools solid elements by passing electricity through the device. The TED has a waste surface and an active surface, which are relatively specified depending on whether heated or cooled air is desired. The TED can be combined with any useful heat dissipation device such as a heat sink, heat exchanger, fan, heat pipe, and the like.

  In addition to TED, an absorption refrigeration system can also be used as a temperature regulator. A suitable absorption refrigeration system is described in US patent application Ser. No. 11 / 232,172, filed Sep. 21, 2005, which is hereby incorporated by reference. Such a system has the advantage of reducing the energy consumption of the entire ventilation system.

  The temperature regulator is for moving air through the air diffuser (regardless of temperature regulation, ambient air, extrusion, suction, or a combination thereof) as schematically shown in FIGS. It further has a blower that provides a driving force. The blower has a set of one or more blades, and the blades may be either fan blades or impellers, but impellers are preferable. While the embodiment shown in FIG. 2 requires only one impeller, the embodiments shown in FIGS. 1 and 3 use two impellers. The impeller blades of FIG. 1 are harmonized with each other to move air in the same direction. The impeller blades of FIG. 3 face each other so as to move air in the opposite direction. A dual impeller can be used in place of the individual single impeller blower. In such an embodiment, one motor drives two impellers (shown in FIG. 5), while in another embodiment, each impeller uses its own motor. Of course, one motor may be used by a plurality of dual impeller blowers. In the embodiment using the dual impeller, the dual impeller is preferable to the individual single impeller because the size of the package can be reduced. Using an individual single impeller and a single motor is preferable to using an individual single impeller and an individual motor because the number of components can be reduced and the size of the package can be reduced.

  The parts of the temperature regulator may be integrally formed in one housing or stored in a separate housing. In either case, the temperature regulator is downstream of the blower, so the blower typically moves air through the connecting conduit to the temperature regulator, but the blower outlet is substantially at the inlet of the temperature regulator. May be adjacent to A connecting conduit is used to fluidly connect the blower to the temperature control device. In one embodiment, the connecting conduit is a flexible conduit so that the two parts can move in space independently of each other. In another embodiment, a relatively rigid conduit and / or housing is used. In this embodiment, for example, as shown in FIG. 6 and described below, a pivot point may be incorporated in the connecting conduit. The pivot point allows the temperature control device and the blower to move more or less independently of each other. By being able to move independently, it becomes easy to attach the temperature controller, and vibrations transmitted between the parts are reduced, so that noise can be reduced.

  The conduit of the present invention provides fluid communication between the temperature regulator and the diffuser. The conduit may take the form of a hollow interior having a sufficient cross-sectional area to allow sufficient air movement to provide thermal comfort for the occupant.

  In one embodiment, the conduit is a hose, tube or bellows connected to a diffuser port. The conduit is usually flexible but strong enough to prevent twisting during installation and operation. In another embodiment, a seat cushion channel or the like may be used as part of the conduit. In this embodiment using a foam cushion, the foam can be treated so that it is substantially impermeable to air.

  The conduit may be threaded through or retained in the hole within other parts of the vehicle seat such as a seat pan or cushion. Alternatively or in addition, the conduit may be placed in a channel or groove in the seat cushion. In one embodiment, one conduit is at least partially threaded through a portion of another conduit. The conduit also extends into the open space of the diffuser to supply airflow to or from a predetermined location in the diffuser remote from where the conduit enters or exits the diffuser. Also good.

  In one embodiment, the assembly of the present invention has at least two conduits. The first conduit fluidly connects the air diffuser to the inlet of the temperature controller, more preferably to the inlet of the blower. The blower draws air from the air diffuser through the first conduit. The second conduit fluidly connects the air diffuser to the outlet of the temperature regulator, more preferably to the outlet of the temperature regulator (such as TED). The blower blows temperature-controlled air through the second conduit to the air diffuser.

  There are several embodiments for connecting the various components of the present invention. Of particular concern are the ease of assembly of the parts and the ease of attachment to the vehicle. While the installation must have a short cycle time, the installer must be confident that the installation (a specific step of installation) has been completed. The attachment may be performed manually by an operator, by a robotic device, or both.

  In one embodiment shown in FIGS. 7 and 8, the diffuser 72 is connected to the cushion 74 using a plug 70. A plug is similar to a cork that is permanently or temporarily inserted into a socket. The plug may also be connected to an additional conduit, temperature conditioning assembly or seat pan 76 of the seat. The diffuser 72 has a nozzle 78 on its lower surface. The nozzle has a through-hole 80 (such as two or more) that functions as part of the first and second conduits. In diffusers having compartments, individual compartments are preferably accessible through each through hole. The plug 72 can be inserted into a socket 82 that is formed complementarily to the lower surface 84 of the cushion 74. A diffuser nozzle 78 is received in the plug 72 for mounting the diffuser and plug around the cushion. A snap fit, interference fit, friction fit, interlock mechanical fastener or any combination thereof is preferred to maintain the plug and nozzle connection. Although an adhesive can be used for the nozzle or plug, this is not preferred. In addition, adhesives, double-sided tape, hooks and loop fasteners may be used on the diffuser and / or cushion to prevent the diffuser from moving after installation. The plug also has a connector 85 that attaches additional conduits or temperature regulators to the plug, ie, attaches them to the rest of the system. The connector shown on the underside of the plug is received through the hole or connector 87 in the seat pan 76 so that the seat pan separates the plug from an additional conduit or temperature controller.

  In another embodiment, as shown on the lower surface of the cushion of FIG. 9, the lower surface of the cushion includes a plug that is received in a socket attached to one or more of the conduits.

  The plug may be formed of any suitable material. In one approach, the plug is a material that has the same stiffness as the surrounding cushion so that the occupant does not feel uncomfortable. Exemplary materials include cork, plastic foam, and the like. Preferably, the plug is sized and shaped to fit snugly into the cushion hole so that no additional adhesive is required. For example, the plug may be conical so that the outer periphery on the seated person side is smaller than the lower surface. The plug can have a flat surface, but is preferably circular or elliptical. In another embodiment, snap-fit fasteners may be used to secure the plug to the cushion and / or seat pan.

  Normally, one plug is used for one sheet, but a plurality of plugs are also conceivable, particularly in a system where the seat pan has two through holes. In addition, the plug can be used with any type of diffuser or insert used in ventilation sheets.

  In another embodiment, as shown in FIG. 10, a connector 90 is attached to a membrane 92 to connect the cushion to the seat pan, which membrane has a portion of the conduit 96 that has a portion of the conduit through the cushion. The slot 94 is slidably held. The slot passes from the lower surface to the occupant side of the cushion. In one embodiment, the conduit is not completely formed by the cushion material, and a membrane separating one conduit from another may be used as part of the wall. The use of a membrane as part of the conduit wall within the slot is advantageous because the membrane increases the air imperviousness of the cushion and thus reduces the amount of crossflow between the conduits. During attachment, the connector is attached to the seat pan with a snap-fit fastener. The installer then pulls the membrane or presses the cushion to force the seat to contact the connector at its lower surface. Attaching the membrane to the top surface of the cushion ensures a secure connection between the cushion and the connector. The air diffuser can then be placed on the occupant face of the cushion and on the temperature condition system attached under the seat pan.

  In another embodiment shown in FIG. 11, a tether is used to attach the conduit to another conduit in the sheet. The installer can secure the diffuser to the cushion and / or seat pan by pulling on the tether, while making the necessary degree of connection between the conduit and the temperature regulator. A diffuser 100 having three compartments 102, 104, 106 is disposed on a cushion 108 having a through hole 110 and a groove 112. In this embodiment, the through-hole 110 functions as a conduit that draws air from the diffuser. Within the groove is a branch conduit 114 that blows air into the diffuser. The name “conduit” is relative in that air can be blown into the diffuser through the through hole and sucked through the conduit in the groove. In one embodiment, the temperature regulator is under the cushion and seat pan, and the manifold 116 (or other housing) that houses both conduits so that only one passage is required in the cushion and seat pan. Chamber). The manifold has an upper conduit 118 and a lower conduit 120 separated by a wall 122. This is also shown in FIG.

  For example, the tether is an elongated flexible material that allows the installer to pull the branch conduit from the underside of the cushion and the seat pan. The tether 124 is passed through a first opening 126 in the wall 122 between the manifold conduits and through a second opening 128 in the outer wall 120 of the lower conduit. The branch conduit forms a relatively hermetic seal with the wall around the first opening to separate the upper and lower conduits from each other. The branch conduit also forms a relatively hermetic seal with the wall around the second opening to prevent leakage from the lower conduit. The branch conduit has openings 130 in one or more of the flow paths of the lower conduit. In this way, the branch conduit provides fluid communication between the lower conduit and the air diffuser.

  In one particular embodiment, the tether may optionally have a stop (such as a thickened or increased frictional resistance) to prevent the installer from pulling the branch conduit too much. The stop also prevents the branch conduit from exiting the opening, thus ensuring that the opening is retained in the lower conduit. The tether also has a sign that informs the installer that the tether and / or branch conduit has been properly installed. In one embodiment, the tether stop and sign are one and the same, but in another embodiment, separate structures are used for the stop and sign.

  As shown in FIGS. 12-17, the stop has a wedge 132 that stops in the second opening with the locking device, which stops the conduit from exiting the opening. The locking device may be of any suitable shape, such as a wedge 134 (shown in FIGS. 12 and 13) below the lower conduit wall, and a finger below the lower conduit wall. 136 (shown in FIG. 14), or snap fit features 138 (shown in FIG. 15) connected to the wall between the upper and lower conduits. The signs may be the discolored portion 140 or the shoulder 142 visible from the lower surface of the manifold as shown in FIGS. 16 and 15, respectively, or the locking device itself as shown in FIGS. Good. After installation, the locking device or tether under the sign is cut, separated, or otherwise cut off. In one embodiment, the tether is designed to separate when a predetermined load is applied to the tether, such as tether breakage or metal separation for a piece of metal. In another embodiment, the tether may be released from the loop at the end of the installed conduit (as shown in FIG. 17). Subsequent disassembly (if necessary) can be easily done by cutting the locking device (eg as shown in FIG. 14).

  Although a branching conduit has been described and described, a tether may be used with a non-branching conduit.

  One embodiment of the present invention is shown in FIG. The vehicle seat 150 has an air diffuser 50 that is divided into three sections 52, 54, and 56. Each compartment of the diffuser has a plurality of ventilation holes 152. The diffuser is supported by a cushion 154 formed from molded foam. The cushion is supported by a seat pan 156 and a temperature regulator 158 is present under the seat pan. The temperature controller has a blower (not shown) and a TED (not shown).

  A first conduit 160 is attached to the lower surface of the middle section 54 of the diffuser. In this embodiment, the first conduit is substantially oval in shape and is held within the cushion foam. As indicated by the arrow, the inlet 162 to the blower draws air from the diffuser. A second conduit 164 is attached to the TED outlet and the lower surface of the diffuser. The second conduit branches off to provide a connection point 168 for the remaining two compartments 52, 56 of the diffuser. A portion 170 of the second conduit is received in the first conduit 160 and a portion 172 is received in the groove 174 of the cushion.

  In this embodiment, since the two conduits pass through the cushion at the same location, only one through hole is needed in the cushion, meaning that a tether connection is suitable for use with this embodiment. In addition, the use of a plug connecting the conduit to the temperature controller may be used. Further, this embodiment is versatile in that this component placement can be used in any of the three schemes shown in FIGS.

  As shown in this embodiment, a portion 170 of the second conduit retained within the first conduit has an arcuate (eg, S-shaped or C-shaped) portion that is heavy. Therefore, the possibility that the second conduit is crushed by the weight of the seated person is reduced. Furthermore, the position of the inlet and the position where the second conduit adheres to the temperature controller may be interchanged so that the inlet 162 comes after the connection point of the conduit. Additional bellows or pleats may be included over some or all of the conduit.

  Several gaskets 176 may be used to provide a relatively air-free connection, such as between the conduit and the temperature controller, between the conduit and the diffuser. In addition, flanges may be used on the conduits and connectors to provide a relatively tight connection between the diffuser and the plug, between the diffuser and the conduit, between the seat cushion and the lower conduit.

  Another embodiment of the present invention is shown in FIG. The vehicle seat has an air diffuser that is attached to the occupant side of the cushion. The diffuser and cushion are not shown in the drawing so that the temperature regulator is clearly visible. A blower, and more particularly, a dual impeller blower 182 is mounted in or on the cushion and is optionally mounted on a seat pan, a seat frame 184, a waist guide wire, and the like. One impeller of the blower draws air from the diffuser through a bellows 186 that functions as a first conduit and exhausts the airflow through an outlet 188. The other impeller of the blower draws air through an air intake 190 on its lower surface. This airflow goes to TED 191 where it is split. A portion of the airflow passes through the active surface of the TED and through a bellows 192 that functions as a second conduit. The other part of the airflow passes through the waste side of the TED and is exhausted through the outlet 194. The TED part of the temperature controller can be supported by a support wire 196. This embodiment can help the support wire stabilize the temperature controller without the need for a seat pan, so the second conduit is at a relatively high backrest than the first conduit. Very suitable for vehicle seat back.

  This embodiment also uses a TED 191 pivotally attached to a blower 182 at a pivot point 198. This pivot point flexes so that fluid communication is maintained between the parts, allowing the two parts of the temperature regulator to move independently. The pivot point may be a ball joint that provides complete range of motion. Further, the pivot point can be a location where components can be connected during system installation, thus reducing the complexity of the installation.

  In addition to the components described above, the present invention may be used with a variety of other components such as sensors and control units. Various sensors such as a temperature sensor, a humidity sensor, a flow rate sensor, a seating detection sensor, and a weight sensor may be included in the system. Sensors can be placed throughout the system. For example, the temperature sensor can be located in the diffuser, between the diffuser and trimmed cover, in a conduit, in a temperature regulator, or a combination thereof.

  One or more control units can be used to receive input from sensors or user controls, send commands to the temperature regulator, and / or otherwise adjust the operation of the system.

  The control unit can automatically operate the system based on the sensor input. For example, the system automatically turns on (eg, heating, cooling, or both) when a seated person sits on the seat. Automatic operation occurs when the vehicle is started or when the ambient temperature inside or outside the vehicle reaches a certain threshold (eg, heating is turned on when a low temperature is detected).

  A manual operation of the system is also conceivable in which the occupant selects the desired set temperature, the amount of air supplied to or drawn from the diffuser. Furthermore, a combination of manual and automatic control is also conceivable. For example, the occupant selects the temperature and the control unit issues the necessary commands to reach the selected temperature, as well as the later commands necessary to maintain the selected temperature. This can be done, for example, by repeating the operation of the temperature regulator, blower, heater layer, and combinations thereof.

  In one embodiment, the system has a temperature sensor that is under a trimmed cover and is in signal communication with the control unit. Advantageously, when the sensor detects that the temperature exceeds one or more predetermined thresholds, the control unit directs the heat supplied to the system to be reduced and possibly cooled. Is programmed to do so. In operation, when the sensor detects that the temperature is below one or more predetermined thresholds, the control unit directs the system to reduce cooling and possibly heat up the system. May be programmed. In a preferred mode of operation, when the blower is drawing air from the diffuser or blowing cool air into the diffuser and the sensor detects a first undesired low predetermined temperature, the control unit turns off the heater layer. Programmed to turn on and supply heat while instructing the blower to remain on. Next, if a second predetermined temperature below the first predetermined temperature is detected, the control unit instructs the heater layer to continue supplying heat while turning off the blower. In either of these situations, the heater layer typically continues to supply heat by the control unit until the temperature detected by the sensor is greater than or equal to the first predetermined temperature, and in some cases, the first layer It is instructed to continue supplying heat until a third predetermined temperature higher than the predetermined temperature is detected.

  In another preferred mode of operation, if the sensor detects a first undesirable high predetermined temperature while the heater layer is supplying heat, the control unit turns on the blower and turns on the air (temperature regulation Programmed air or unconditioned air), while the heater layer remains on. Next, if a second predetermined temperature is detected that exceeds the first predetermined temperature, the control unit instructs the blower to continue to inhale or blow air while turning off the heater layer. In either of these situations, the blower typically continues to draw or blow air through the control unit until the temperature detected by the sensor is below the first predetermined temperature, and in some cases, the first It is instructed to continue blowing air until a third predetermined temperature lower than the predetermined temperature is detected.

  In embodiments where the seat and back of the seat are temperature controlled or ventilated, the control unit preferably provides the two systems so that one supplies heat while the other supplies ventilation or cooling. Are programmed to control their operations independently of each other. Similar to the independent operation, the synchronous operation of the two systems where heating and cooling are performed simultaneously on the same part of the seat is also useful. For example, the heater layer can be operated while the TED cooled air can be supplied to the diffuser.

  In addition, to utilize unused energy in the fluid (if the air is hotter than the ambient air) or energy capacity (if the air is cooler than the ambient air), the air flow through the system is reduced. One or more valves may be used to switch. For example, the valve can be used to vent air to ambient air in order to discard unwanted energy stored in the air. Valves can also be used to direct air to system components (such as temperature regulators) to warm or cool the components. The valve can also be used to selectively circulate air within the system, optionally creating a closed or partially closed system. Using a valve in the conduit from the diffuser can improve the efficiency of the TED by diluting the warm air drawn from the diffuser by the cold ambient air. Further, when the airflow from the diffuser is obstructed, it is considered that such a valve can continuously discard the TED disposal side. In order to obtain the desired airflow pattern described above, the operation of the valve can be controlled by a control unit.

  In addition, the system may have one or more vents that direct the exhaust from the temperature regulator. These vents can be controlled by a control unit or an operable manual so that the occupant can select the direction of airflow.

  The mounting component is preferably a frame member that defines a location for mounting a fan, fluid regulating device, conduit or other component to the diffuser. It is contemplated that the frame member can be in various forms (eg, annular, rectangular, square, polygonal, etc.) and can be formed from a variety of suitable rigid or semi-rigid materials (eg, metal, plastic, etc.). The In some aspects, the attachment is also used to define the port. In a preferred embodiment, the mounting component cooperates with structures and / or materials (eg, snap fit fasteners) on the fan, fluid conditioning device, or other component to connect the device or component to the mounting component.

  In conjunction with the embodiments disclosed above, the temperature controller, conduit or various other parts, and sub-parts can be placed on the seat frame, seat pan or backrest portion (such as the waist assembly) of the seat and one of the seat and its parts. It can be permanently or detachably attached or fixed so that one moves in conjunction. The temperature controller may be connected to a seat structure underneath, such as a seat track (where a seat can move from a first position to a second position). In another embodiment, the temperature controller may be attached or secured to other parts, assemblies and appendages of the seat, such as seat cushions, diffusers, seat warmers, seat covers. The temperature controller may be placed remotely with respect to the sheet. Any suitable fastening or mounting mechanism or device (eg, adhesive, snap-fit mechanical fasteners, etc.) can be used to assemble the temperature controller components or attach the temperature controller to the surrounding structure it can.

  The invention also relates to a method of supplying heating, cooling, ventilation or a combination thereof. The method includes a step of sucking air from the air diffuser and a step of blowing temperature-controlled air to the air diffuser. In one embodiment, these steps include operating a dual impeller blower in which the impeller blades are harmonized. The inhalation step allows the air inhaled by one impeller to pass through a temperature control device and potentially dissipate excess energy or heat (eg, let air pass to the waste side of the TED and let the inhaled air And the like). The blowing step adjusts the temperature of the ambient air passed through the device by the other impeller of the blower (for example, moving the ambient air to the active surface of the TED), and the temperature adjusted air to the air diffuser Including blowing. In this embodiment, the blowing step may comprise sucking ambient air through a conduit valve from the diffuser to the blower.

  In another embodiment, the blowing step and the sucking step comprise operating a single impeller blower. The sucking step includes passing air sucked from the diffuser through a temperature control device. In a temperature control device, the method includes both dissipating excess heat of the temperature control device and temperature control of the air. In one example, the dissipating step includes passing air through the waste side of the TED, and the temperature adjusting step includes passing air through the active surface of the TED. The method further includes exhausting the diffused air and blowing temperature-controlled air into the diffuser. In this embodiment, the blowing step may comprise sucking ambient air through a conduit valve from the diffuser to the blower.

  In another embodiment, the blowing and sucking steps include operating a dual impeller blower with impeller blades facing each other. The inhalation step includes exhausting the inhaled air without passing through the temperature control device. The blowing step includes both passing ambient air through the temperature control device and dissipating excess energy of the temperature control device to temperature control the passed air. The method further includes exhausting the diffused air and blowing temperature-controlled air into the diffuser.

  In this method, the blowing and sucking steps can include passing air through the same compartment or another compartment of the diffuser.

  In a preferred embodiment, the present invention provides cooling from temperatures above about 80 ° C. The present invention also provides cooling to about 37 ° C or lower, more preferably about 27 ° C or lower, and most preferably about 25 ° C or lower. These temperatures can refer to the diffuser air temperature in any part of the system, or the temperature on or near the seating surface. In a preferred embodiment, the present invention provides an initial burst of cooling so that the occupant can immediately feel cooling. The initial burst is preferably about 5 ° C / min, about 10 ° C / min, about 15 ° C / min, about 20 ° C / min, about 25 ° C / min, and about 35 ° C / min until stable at the lowest temperature. It is a ratio exceeding.

  In another embodiment, the method includes mixing ambient air with the air being drawn from the diffuser. By mixing the sucked air with the ambient air, the temperature of the air can be lowered. At that time, the mixed airflow has a higher heat capacity than the air just sucked from the diffuser. The mixed air can then be used on the waste side of the TED to dissipate any heat generated there. The mixing of ambient air and inhaled air is particularly useful in the scheme shown in FIGS.

  The present invention also includes a method of manufacturing a vehicle seat. One method includes connecting the diffuser to the temperature control device by inserting a nozzle on the underside of the air diffuser into the occupant side of a plug that is driven into the through hole of the cushion. It further comprises connecting a connector on the underside of the plug to one or more conduits leading to the temperature control device. In this way, multiple conduits can be connected to the diffuser through one hole in the cushion and / or seat pan.

  Another method involves attaching a conduit to the underside of the diffuser. The method then includes placing a conduit, which includes a tether in the passageway in the cushion and seat pan hole (if present). The temperature regulator is fluidly connected to the diffuser by passing the tether and conduit through the manifold of the temperature regulator. Preferably, the method comprises pulling the tether until a visual indicator or other indicator indicates that the conduit is properly positioned. The method also preferably includes locking the conduit in place to prevent the conduit from exiting the manifold by using a locking device in the conduit or tether. The method includes sealing a conduit to one or more walls of the manifold to reduce air leakage from one conduit to another, reduce leakage from the manifold to the environment, or both. You can have more. In this way, multiple conduits can be connected to the diffuser through one hole in the cushion and / or seat pan.

  Another method involves pulling a membrane attached to a connector or plug and slidably held within a slot in the cushion. Pulling forces the connector or plug against the lower surface of the cushion, thus sealing the connector or plug. A conduit from the temperature control device can be attached to the connector or plug before, during or after pulling.

  Another method involves attaching the blowing conduit and the suction conduit to the underside of the diffuser by using bellows that are independent of each other.

  Each manufacturing method includes a conduit for the diffuser, a diffuser for the trimmed cover, a diffuser for the cushion, a cushion for the seat pan, a conduit for the temperature control device, and / or a temperature control for the cushion, seat pan, seat frame, etc. The apparatus may further comprise attaching each. Suitable methods include stitching, adhesive, double-sided tape, hook and loop fasteners, snap fit fasteners, locating pins, and the like, and combinations thereof. For example, the diffuser can be secured (eg sewn or glued) to a part of the seat, such as a trimmed cover (eg perforated leather cover) or to a cushion (eg foam) on the seat Can be attached in other ways). In one embodiment, the diffuser is first secured to the trimmed cover, and then the trimmed cover and diffuser combination is secured to the sheet. In another embodiment, the trimmed cover may be configured with a pocket into which the diffuser is inserted. In another embodiment, it is contemplated that hook and loop fasteners may be used to attach the diffuser to other parts of the seat (such as a cover, frame or cushion). Other methods such as stitching, adhesive, snap-fit fasteners or locating pins may be used to assemble the diffuser on the sheet.

  In general, the various layers of diffusers described above can be combined in various orders according to various schemes and methods to form a diffuser. Thus, the order and manner of combining the various layers and sublayers should not limit the invention in any way, unless such an order or method is specifically claimed. Further, the number of layers may be increased or decreased, and the number of lower layers included in each layer may be increased or decreased.

  In general, a lamination process is preferred to assemble two or more of the diffuser layers. US patent application Ser. No. 10 / 434,890, filed May 9, 2003 (currently issued as US Pat. No. 6,893,086), for assembling layers of a diffuser in accordance with the present invention. A description of one suitable method has been described and is incorporated herein by reference. Furthermore, a method having welding is particularly preferred.

  Preferably, the system of the present invention can be included in seats (such as vehicle seats in automobiles) used in transport machinery, but the system can be used in various other seats such as desk chairs and chaise longues. Can be used. Other suitable transport machines include class 1-8 motor vehicles, trains, marine vessels (such as pleasure boats) submersibles, underground vehicles, fixed and rotary wing aircraft and / or some military vehicles. The system can be used for seats for operators (such as pilots), other occupants or passengers.

  Various embodiments of the diffuser and system described below utilize air as a temperature-controlled fluid communicated through the diffuser and / or system. However, it should be understood that other gases and / or liquids may be utilized in these embodiments. In addition, filtration devices and / or purification devices can be used to supply air or fluid to the system or system components.

  Although most of the embodiments described herein have shown that TED is used to supply cooled air to the diffuser, air that has been warmed to the diffuser or seat using TED or other temperature regulators It should be understood that may be provided.

  Further understanding that the function or structure of multiple parts or steps can be combined into a single part or step, and that the function or structure of a single step or part can be divided into multiple steps or parts I want to be. Unless otherwise noted, the dimensions and outlines of the various embodiments described herein are not intended to limit the invention and other dimensions or outlines are possible. Furthermore, while features of the invention may be described by only one of the illustrated embodiments, for any application, such a feature may be one or more of the other features of another embodiment. Can be combined. It will also be appreciated from the above that the manufacture and operation of the unique structure described herein also constitutes a method according to the present invention. The present invention further encompasses intermediate products and final products resulting from the performance of the method of the present invention. The term “comprising” or “including” means that the characteristics in which these terms are used are “consist essentially of” or “only consist of ( consist of) ”embodiment.

  The use of the words “first” and “second” is not intended to be limited to combinations of only the first item and the second item. Even if they are used, the subject matter of the present invention may suitably include third, fourth or more items. Further, the term “(meth) acrylate” refers to both acrylate and methacrylate. Furthermore, disclosure of “one” or “one” element or step does not exclude additional elements or steps. When “about” or “the” is used in front of a range, it refers to both the lower and upper ends and is not intended to be bounded by the amount specified by the range (eg, “about 1 to 3 "Is intended to include" about 1 to about 3 "). Unless otherwise specified or required by the context of use, a “mixture” or “combination” of polymers is intended to be an alloy, mixture or further copolymer of such polymers. “Comprising”, “having” and “including” and their derivatives are the more restrictive terms “consist essentially of”, or “Consist of” is also considered.

  The above description is for illustrative purposes and is not intended to limit the present invention. Those skilled in the art will be able to read the above description and adapt and apply the present invention to various forms in addition to the examples described. Accordingly, the scope of the invention should not be determined with reference to the above description, but should be construed with reference to the appended claims along with the full scope of equivalents to which such claims are entitled. Should. The disclosures of all references and references, including patent applications and publications, are hereby incorporated by reference for all purposes. Omission of any aspect of the presently disclosed subject matter from the appended claims waives the right of such subject matter, but the inventor does not claim such subject matter as the disclosed invention. Should not be considered as not considered part of the subject.

It is a figure showing typically a 1st embodiment of the present invention. It is a figure which shows 2nd Embodiment of this invention typically. It is a figure which shows typically 3rd Embodiment of this invention. It is a figure which shows one Embodiment of this invention in a sheet | seat. 1 is a diagram illustrating one embodiment of a blower useful in the present invention. It is a figure which shows another one Embodiment of this invention in a sheet | seat. It is a figure which shows embodiment of the plug of this invention. It is a figure which shows embodiment of the plug of this invention. It is a figure which shows embodiment of the plug of this invention. It is a figure which shows embodiment of the film | membrane of this invention. 1 is a view showing an embodiment of a tether of the present invention attached to a seat. FIG. FIG. 3 is a close-up view of an embodiment of a tether attached to a seat. It is a figure which shows the various aspects of embodiment of the tether of this invention. It is a figure which shows the various aspects of embodiment of the tether of this invention. It is a figure which shows the various aspects of embodiment of the tether of this invention. It is a figure which shows the various aspects of embodiment of the tether of this invention. It is a figure which shows the various aspects of embodiment of the tether of this invention.

Claims (56)

A method for controlling the temperature of a vehicle seat,
Inhaling air from a diffuser in the vehicle seat through at least one first conduit;
Blowing air conditioned by a thermoelectric device (TED) into the diffuser through at least one second conduit.   The method of claim 1, further comprising the step of drawing air into the diffuser through a trimmed cover.   The method according to claim 1 or 2, further comprising blowing air through the trimmed cover to a seated person.   4. A method as claimed in any preceding claim, further comprising blowing air from the active side of the TED to the diffuser.   5. A method according to any one of the preceding claims, further comprising the step of blowing cooled air into the diffuser.   The method according to any one of claims 1 to 5, wherein the suction step includes a step of sucking air from the diffuser and an ambient air inlet.   7. A method according to any preceding claim, wherein the ambient air inlet is located in the at least one first conduit extending from the diffuser.   8. A method according to any one of the preceding claims, wherein the ambient air inlet is located in the blower housing.   9. A method according to any one of the preceding claims, wherein the blowing step includes evacuating air to the active side and the waste side of the TED.   The method according to any one of claims 1 to 9, wherein the blowing step includes exhausting air through an exhaust outlet of the blower housing to the waste side of the TED.   The method according to claim 1, wherein the blowing step and the sucking step include a step of operating a single impeller of a blower.   11. A method according to any one of the preceding claims, wherein the blowing step and the sucking step include operating at least two impellers to blow air in substantially the same direction.   11. A method according to any one of the preceding claims, wherein the blowing step and the sucking step include operating at least two impellers to blow air in substantially different directions.   14. The method of any one of claims 1 to 13, further comprising providing an air diffuser having an open end air diffuser having a spacer material and a top surface having a plurality of ventilation openings.   15. A method according to any one of the preceding claims, further comprising providing an air diffuser having a sealed end air diffuser having a spacer material and a top surface having a plurality of ventilation openings.   The method according to any one of claims 1 to 15, wherein the suction step and the blowing step include a step of sucking air through a section that is not fluidly connected to a section into which air is blown.   Inhaling air from at least one compartment fluidly connected to the at least one first conduit and blowing air into at least one compartment fluidly connected to the at least one second conduit. Item 17. The method according to any one of Items 1 to 16.   18. A method according to any preceding claim, wherein the blowing or sucking step further comprises moving air through a conduit having at least one branch point.   19. A method according to any one of the preceding claims, further comprising providing an electrical heating element within the diffuser and applying an electrical signal to the element. A seat ventilation device,
An air diffuser having a spacer material and a occupant side having a plurality of ventilation openings;
A temperature control device and a temperature control device having a blower;
A first conduit fluidly connected to the diffuser and an inlet of the blower;
A second conduit fluidly connected to the diffuser and an outlet of the temperature control device;
The blower is a seat ventilator that moves air to the temperature control device for its inlet and then from the outlet of the temperature control device to the diffuser.   21. The seat ventilator of claim 20, wherein the second conduit is branched at at least one location to provide at least two secondary conduits connected to the diffuser.   22. A seat ventilation apparatus according to claim 20 or 21, further comprising a seat cushion in which a channel in which the secondary conduit is received is defined.   The seat ventilation device according to any one of claims 20 to 22, wherein the temperature control device is a thermoelectric device (TED).   The seat ventilation device according to any one of claims 20 to 23, wherein at least a part of the second conduit is held in the first conduit.   25. A seat ventilator according to any one of claims 20 to 24, wherein the second conduit between the outlet of the temperature control device and a first branch point has a flexible portion.   The seat ventilation device according to any one of claims 20 to 25, wherein each of the first conduit and the second conduit has a bellows.   27. The seat ventilation apparatus according to any one of claims 20 to 26, wherein the blower and the TED are pivotally attached to each other.   The seat ventilation apparatus according to any one of claims 20 to 27, wherein a pipe between the blower and the TED has flexibility.   29. A seat ventilation device according to any one of claims 20 to 28, wherein the temperature control device is under a seat pan of the seat.   30. The seat ventilator according to any one of claims 20 to 29, wherein the temperature control device is connected to the seat pan by a snap fit connection.   31. A sheet pan according to any one of claims 20 to 30, wherein the seat pan has a hole therethrough, both the first conduit and the second conduit of the sheet passing through the seat pan. Seat ventilator.   32. Seat ventilation according to any one of claims 20 to 31, wherein the seat pan has a plurality of holes through which the first conduit and the second conduit of the seat penetrate the seat pan. apparatus.   The seat ventilation apparatus according to any one of claims 20 to 32, wherein the blower has a single impeller on one shaft.   34. The seat ventilation apparatus according to any one of claims 20 to 33, wherein the blower has a dial impeller on one shaft.   The seat ventilation device according to any one of claims 20 to 34, wherein the first conduit or the second conduit has a tether.   36. A seat ventilator according to any one of claims 20 to 35, wherein the tether has a stop to prevent excessive attachment of the conduit.   37. The tether has a visual indicator visible from the lower surface of the cushion or seat pan that indicates that the first conduit or the second conduit is properly attached. The seat ventilation apparatus as described in the paragraph.   38. The seat ventilation device according to any one of claims 20 to 37, wherein the tether has a locking device.   The seat ventilation device according to any one of claims 20 to 38, wherein the seat pan has an opening to which a manifold of the temperature control device is attached.   40. Seat ventilator according to any one of claims 20 to 39, wherein the tether is passed through an opening in a wall separating the upper and lower conduits of the manifold and through the outer wall of the lower conduit. .   41. A seat ventilation apparatus as claimed in any one of claims 20 to 40, wherein the conduit having the tether has one or more openings in the lower conduit of the manifold after the conduit is installed.   The seat ventilation apparatus according to any one of claims 20 to 34, further comprising a plug attached to a lower surface of the diffuser.   43. A seat ventilator according to any one of claims 20 to 34 or 42, wherein the plug is driven into a through hole in the cushion to attach the diffuser around the cushion.   44. A seat ventilator according to any one of claims 20 to 34, 42 or 43, wherein the plug has a foam having a density substantially the same as the seat cushion foam.   45. Seat ventilation according to any one of claims 20 to 34 or 42 to 44, wherein the plug has at least one through hole forming at least part of one or more of the first conduit or the second conduit. apparatus.   46. The plug according to any one of claims 20 to 34 or 42 to 45, wherein the plug has one through-hole forming part of one conduit and the other conduit is received in the one conduit. Seat ventilator.   47. Seat according to any one of claims 20 to 34 or 42 to 46, wherein the plug has two through holes, each of which forms part of the first conduit and the second conduit. Ventilation device.   21. The plug has three through holes, two of which form part of the first conduit and the second conduit, and the remaining through hole has a portion of the remaining conduit. The seat ventilation apparatus as described in any one of thru | or 34 or 42 thru | or 47.   49. The plug according to any one of claims 20 to 34 or 42 to 48, wherein the plug comprises a plug attachment device connecting the plug to the seat pan, the seat cushion, a conduit or a plurality thereof. Seat ventilator.   35. A seat ventilation apparatus as claimed in any one of claims 20 to 34, further comprising a connector attached to the membrane, wherein the membrane is slidably received in a slot of the cushion.   51. The seat ventilation device according to any one of 20 to 34 or 50, wherein the membrane is available from a seated side of the cushion.   52. A seat ventilator according to any one of claims 20 to 51, wherein the diffuser further comprises a heating element.   53. A seat ventilator according to any one of claims 20 to 52, wherein the heating element comprises a wire heating element.   54. A seat ventilator according to any one of claims 20 to 53, wherein the heating element comprises a printed heating element such as a positive temperature coefficient heating element.   55. The seat ventilation device according to any one of claims 20 to 54, wherein the diffuser has a plurality of laminated bodies to which layers are attached by an adhesive.   56. The seat ventilation device according to any one of claims 20 to 55, wherein the diffuser has a plurality of laminated bodies to which layers are attached by welding such as infrared, high-frequency, and / or ultrasonic welding.

Images