• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a motor vehicle seat element, comprising, successively: padding (A); a thermal device comprising at least one heat generating element (24) and at least one thermal diffusion layer (2 '); and a headdress.
    公开号:FR3024683A1
    申请号:FR1457708
    申请日:2014-08-08
    公开日:2016-02-12
    发明作者:Anne Isabelle Dacosta-Mallet；Samuel Baudu
    申请人:Faurecia Sieges dAutomobile SA；
    IPC主号:
    专利说明:

    [0001] B13480 - 3629 1.EN 1 THERMAL DEVICE FOR A MOTOR VEHICLE SEAT The present description relates generally to the seats for a motor vehicle and, more particularly, to the production of a thermal device (heating or cooling) of such a seat.
    [0002] Motor vehicle seats are increasingly equipped with thermal devices (heating and / or cooling sheets). These plies may be elements interposed between a padding and a cap of the seat element (seat, backrest or headrest) or be integrated in the padding, for example, being overmolded. The constituent thermal production elements of the thermal devices are generally electrical elements, typically heating resistors or Peltier elements. It may also be devices in which circulates a heat transfer fluid. It would be desirable to improve the performance of thermal devices fitted to motor vehicle seats. Thus, one embodiment aims to provide a thermal device for a motor vehicle seat that overcomes all or part of the disadvantages of conventional thermal devices.
    [0003] Another embodiment aims to improve the performance of these thermal devices. Another embodiment aims at a solution that does not require modification of the mounting techniques in seats. Another embodiment is a solution that does not require modification of the control circuits of the thermal generating elements. Thus, an embodiment provides a motor vehicle seat element, comprising, successively: padding; a thermal device comprising at least one thermal generation element and at least one thermal diffusion layer; and a cap. One advantage is to improve the performance of a thermal device equipping a seat element. According to one embodiment, the thermal diffusion layer is at least partially interposed between the padding and the heat generating element. According to one embodiment, the thermal diffusion layer extends beyond the plumb of the thermal production element. One advantage is to improve the thermal distribution by providing access to areas of the seat element that do not allow the thermal generation element to be predicted. According to one embodiment, the thermal diffusion layer is perforated. One advantage is to avoid moisture accumulation at the cap. According to one embodiment, the thermal diffusion layer is an aluminum or copper foil. One advantage is to avoid heat loss to the padding.
    [0004] According to one embodiment, the thermal diffusion layer is made of graphite. One advantage is to provide a heat storage effect (or cold).
    [0005] According to one embodiment, the seat element comprises a plurality of thermal production elements consisting of Peltier effect elements. One advantage is to be able to heat or cool. According to one embodiment, the thermal generating element is a heating resistor. According to one embodiment, the thermal diffusion layer is formed of a stack of several layers. One advantage is to improve the mechanical strength, thus facilitating handling during assembly.
    [0006] One embodiment provides a seat having a seat member. These and other features and advantages will be set forth in detail in the following description of particular embodiments in a non-limiting manner with reference to the accompanying figures in which: FIG. 1 is a schematic top view of a conventional thermal device equipping a motor vehicle seat element; Figure 2 is a schematic top view of an embodiment of a thermal device equipping a seat element of a motor vehicle; FIG. 3 is a schematic view from above of another embodiment of a thermal device equipping a motor vehicle seat element; Figure 4 is a schematic exploded perspective view of a seat element for a motor vehicle, equipped with an embodiment of a thermal device; and Figure 5 is a sectional view of an embodiment of a seat element for a motor vehicle.
    [0007] 3024683 B13480 - 3629 1.EN 4 For the sake of clarity, only the elements useful for understanding the embodiments that will be described have been shown and will be detailed. In particular, the embodiment of the seat elements (frame, padding and cap) has not been detailed, the described embodiments being compatible with the usual embodiments of seats elements equipped with heating / cooling elements. In addition, the connection devices of the thermal generating elements (heating or cooling) to one or more energy sources or control devices have also not been detailed, the embodiments described being, again, compatible with the usual achievements. It should be noted that, in the figures, the structural and / or functional elements common to the different embodiments may have the same references and may have identical structural, dimensional and material properties. Figure 1 is a schematic top view of a conventional thermal device 1 'equipping a seat element of a motor vehicle. It is considered, arbitrarily, the case of a heating device formed of a heating resistor 18 arranged in the form of a coil on the padding (symbolized by a dashed line A) of the seat element (seat, backrest support- 25 head). The ends of the resistive element 18 are connected to a control and power supply circuit 14 communicating (link 16) with unrepresented power supply elements. More and more people are looking for energy savings. Therefore, a solution to improve the performance of a thermal device equipping a seat for a motor vehicle would be welcome. Figure 2 is a schematic top view of an embodiment of a thermal device equipping a motor vehicle seat element.
    [0008] A thermal generation device 1 is present, for example in the form of one or more elements 12 for thermal generation (for example one or more heating resistors in a coil). The element 12 is connected to a communicating power and control device 14 (link 16) with a power source. In the example of Figure 2, the thermal generating element 12 is distributed over the entire surface of the seat member. According to this embodiment, a thermal diffusion layer 2 is interposed between the element 12 and the padding A on which the thermal device is attached. In the following description, it will be simplified to refer to an example of a heating device. However, everything that will be described below applies, unless otherwise stated, to a cooling device. According to one embodiment, the thermal diffusion layer 2 may also be partially thermally reflective (for example, an aluminum or copper foil) so as to return part of the heat towards the cap, therefore towards the surface of the seat element. In the case of a thermally reflective material, stacked at least partially with the thermal generating elements, the reflective material is placed under the heat generating elements (between the padding and these elements), so as to reflect the heat towards the heat generating material. occupant sitting on the seat. According to one embodiment, the layer 2 is a layer of a heat-diffusing material, which is non-reflective, for example a graphite layer. In this case, the layer 2 can indifferently be placed between the quilting and the thermal production elements or between the latter and the cap. Figure 3 is a schematic top view of another embodiment of a thermal device equipping a seat element of a motor vehicle.
    [0009] As compared with the embodiment of FIG. 2, the thermal generating elements 12 are located at different locations of the seat element and the thermal diffusion layer 2 extends beyond the surface. This embodiment shows an advantage of the use of a diffusion layer 2 which is to allow heat diffusion in areas of the seat where the shape of the liner does not allow or makes difficult the forecasting of thermal generation elements. Figure 4 is a schematic exploded perspective view of a seat element for a motor vehicle, equipped with another embodiment of a thermal device. Compared to the previous embodiments, the diffusion layer 2 'has holes 22. The function of these holes 22 is to prevent moisture build-up at the cap. Thus, this embodiment is more particularly intended for the case where the constituent material of the diffusion layer 2 'is sealed.
    [0010] FIG. 4 also illustrates another embodiment of the thermal generation elements, here in the form of an array of Peltier effect elements. Such an embodiment makes it possible, depending on the flow direction of the current imposed through the elements 24, to obtain a heating or cooling effect. Figure 5 is a sectional view of an embodiment of a seat element for a motor vehicle. FIG. 5 shows the padding A, surmounted by a thermal diffusion layer 2 and thermal production elements 12, the assembly being covered with a cap 3. According to an alternative embodiment, the diffusion is formed of a stack of several layers or a multilayer to improve the mechanical strength and facilitate assembly.
    [0011] 3024683 B13480 - 3629 1.EN 7 The thermal device is mounted either by inserting it between the padding and the cap or by overmolding it on the padding. The fact of inserting a thermal diffusion layer 5 has many advantages. First, it improves the performance of the thermal device and reduces energy requirements. In addition, the thermal diffusion layer will generally be less thick than the thermal generating elements and will thus provide access to otherwise inaccessible areas of the seat member. Another advantage of the embodiments which have been described is that they do not require any modification of the quilting or cap making techniques or mounting techniques. Another advantage is that it does not require any modification of the control circuits of the thermal generating elements and their energy sources. Depending on the nature of the thermal generating elements and the nature of the thermal diffusion layer, it can be provided that they are directly in contact (preferred embodiment) or not. Similarly, the thermal device is preferably placed as close as possible to the cap in order to prevent losses between the device and the occupant of the seat.
    [0012] Various particular embodiments have been described. Various variations and modifications will be apparent to those skilled in the art. In particular, several thermal generation elements (several heating resistors, several Peltier effect elements, several conduits carrying a heat transfer fluid) may be provided and associated with one or more thermal diffusion and / or reflective layers. Moreover, the various embodiments and variants are combinable. Finally, the practical implementation of the described embodiments is within the abilities of those skilled in the art based on the functional indications given above, whether for the choice of the constituent material of the invention. the diffusion layer and / or thermal reflection or for the track followed.
    权利要求:
    Claims (11)
    [0001]
    REVENDICATIONS1. Motor vehicle seat element, comprising, successively: padding (A); a thermal device comprising at least one thermal generating element (12, 24) and at least one thermal diffusion layer (2, 2 '); and a cap (3).
    [0002]
    The seat element of claim 1, wherein the thermal diffusion layer (2, 2 ') is at least partially interposed between the padding (A) and the heat generating member (12, 24).
    [0003]
    Seat element according to claim 1 or 2, wherein the thermal diffusion layer (2, 2 ') extends out of line with the thermal generating element (12, 24). 15
    [0004]
    4. Seat element according to any one of claims 1 to 3, wherein the thermal diffusion layer (2 ') is perforated (22).
    [0005]
    An element according to any one of claims 1 to 4, wherein the thermal diffusion layer (2, 2 ') is thermally reflective.
    [0006]
    6. Element according to claim 5, wherein the thermal diffusion layer (2, 2 ') is a sheet of aluminum or copper.
    [0007]
    The seat element according to any one of claims 1 to 4, wherein the thermal diffusion layer (2, 2 ') is made of graphite.
    [0008]
    8. Seat element according to any one of claims 1 to 7, comprising a plurality of thermal production elements consisting of Peltier effect elements (24). 30
    [0009]
    9. A seat member according to any of claims 1 to 7, wherein the thermal generating member (12) is a heating resistor. 3024683 B13480 - 3629 1.GB 10
    [0010]
    10. Seat element according to any one of claims 1 to 9, wherein the thermal diffusion layer is formed of a stack of several layers.
    [0011]
    Motor vehicle seat comprising a seat element according to one of claims 1 to 10.
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    US10966535B2|2017-05-30|2021-04-06|Ford Global Technologies, Llc|Thermally conductive tape|
    US11167673B2|2017-07-25|2021-11-09|Faurecia Automotive Seating, Llc|Vehicle seat|
    FR3092043B1|2019-01-25|2021-02-12|Faurecia Sieges Dautomobile|Seat element panel|
    法律状态:
    2015-07-27| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-12| PLSC| Publication of the preliminary search report|Effective date: 20160212 |
    2016-07-20| PLFP| Fee payment|Year of fee payment: 3 |
    2017-07-20| PLFP| Fee payment|Year of fee payment: 4 |
    2018-07-20| PLFP| Fee payment|Year of fee payment: 5 |
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    2021-07-22| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1457708|2014-08-08|
    FR1457708A|FR3024683B1|2014-08-08|2014-08-08|THERMAL DEVICE FOR SEAT OF MOTOR VEHICLE|FR1457708A| FR3024683B1|2014-08-08|2014-08-08|THERMAL DEVICE FOR SEAT OF MOTOR VEHICLE|
    US14/820,175| US10632879B2|2014-08-08|2015-08-06|Heating and/or cooling device for a motor vehicle seat|
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