JP2016060322A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat that has a temperature adjustment device suitable for a seat.SOLUTION: A vehicle seat 1 comprises a temperature adjustment device 4. The temperature adjustment device 4 comprises: a film-like base material 51 formed from a non-conductive material; and a Peltier element part 52 in which a plurality of Peltier elements are connected in series, each Peltier element being composed of a pair of electrodes 521, a p-type semiconductor 522, and an n-type semiconductor 523, which are formed on the base material 51. It is further preferable that the vehicle seat comprises a film-body pair 5 woven from a first film body 50a and a second film body 50b.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a vehicle seat provided with a temperature control device.

  The following Patent Document 1 describes a vehicle seat including a temperature adjusting device that blows air that has been cooled or heated to the surface of a seat by a Peltier module using a Peltier element.

JP 2003-169727 A

  The technique described in Patent Document 1 has a low thermal efficiency because it adjusts the temperature of the sheet surface via air cooled or heated by a Peltier module. In addition, since a structure (duct, fan, etc.) for sending air is required, various problems such as a large number of parts, a large apparatus, and high costs arise.

  An object of the present invention is to provide a vehicle seat provided with a temperature control device suitable for the seat.

  In order to solve the above problems, a vehicle seat according to the present invention is a vehicle seat provided with a temperature control device, and the temperature control device includes a film-like base material formed of a non-conductive material, And a Peltier element portion in which a plurality of Peltier elements composed of a pair of electrodes, a p-type semiconductor film, and an n-type semiconductor film formed on the substrate are connected in series.

  The temperature adjusting device includes a first film body in which the Peltier element portion is formed on a certain base material and a second film body in which the Peltier element portion is formed on a base material different from the certain base material. Therefore, when a current of one polarity is energized, at least a part of the first region near the electrode where the junction with the semiconductor generates heat, and a junction with the semiconductor when the current of one polarity is energized It is preferable to provide a film assembly in which at least a part of the second region close to the electrode that absorbs heat overlaps and the first region is wider than the second region on one side.

  The temperature control device includes a plurality of the above-described one side surfaces of a certain film assembly and a plurality of the above-described ones that overlap each other so that a surface opposite to the one-side surface of another film assembly adjacent to the certain film assembly. A film assembly may be provided.

  The temperature control device provided in the vehicle seat according to the present invention includes a member in which a Peltier element film is formed on a film-like base material. As described above, since the film-like member generates or absorbs heat, effects such as the seating comfort of the seat is not deteriorated and the space for installing the temperature control device in the seat is small.

  By weaving the first film body and the second film body so that the heat generation side and the heat absorption side overlap, one surface generates heat and the other surface absorbs heat (the surface that generates heat and the surface that absorbs heat depending on the polarity of the current) A film assembly is obtained. That is, the temperature control device has a film assembly corresponding to both cooling and heating. Further, since the film assembly is a fabric (woven fabric) in which the first film body and the second film body are woven together, the bending when a person sits on the seat is absorbed.

  A temperature control device comprising a plurality of film assemblies that overlap so that a surface on which a first region of a film assembly is located and a surface on which a second region of another film assembly adjacent to the certain film assembly faces each other By doing so, heat generation and endothermic performance can be improved.

1 is an external view of a vehicle seat according to an embodiment of the present invention. It is an external view of the film assembly with which a temperature control apparatus is provided. It is a top view of the film assembly (c) which woven the 1st film body (a), the 2nd film body (b), the 1st film body, and the 2nd film body. It is the figure which showed typically the cross section (AA line cross section of FIG.3 (c)) of a film body group. It is the figure which showed typically the temperature distribution (a) of a 1st film body, the temperature distribution (b) of a 2nd film body, and the temperature distribution (c) of a film body assembly, Comprising: One surface side of a film body assembly It is the figure which showed the state in which the area | region which generate | occur | produces heat | fever exists widely. It is the figure which showed typically the temperature distribution (a) of a 1st film body, the temperature distribution (b) of a 2nd film body, and the temperature distribution (c) of a film body assembly, Comprising: One surface side of a film body assembly It is the figure which showed the state in which the area | region which absorbs heat exists widely. It is the figure which showed the film body group (c) formed by the 1st film body (a) and the 2nd film body (b) being woven in a row or a column unit. It is a schematic diagram for demonstrating the temperature control apparatus which has the some film body group piled up. It is a schematic diagram for demonstrating a temperature control apparatus provided with an air blower. It is a schematic diagram for demonstrating the temperature control apparatus which has only one film body.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Unless otherwise specified, the front-rear direction refers to the direction orthogonal to the plane direction of the film assembly 5, the width direction refers to the width direction of the sheet, and the up-down direction orthogonal to the front-rear direction and the width direction. It shall be the direction. In addition, this direction does not limit the attachment direction of each member.

  A vehicle seat 1 according to an embodiment of the present invention shown in FIG. 1 as a whole includes a seat back 2 and a seat cushion 3. The seat back 2 and the seat cushion 3 have a pad for expressing cushioning and a seat cover that covers the pad. On the surface of the seat back 2 and the seat cushion 3 (the surface on the side of the person sitting on the seat), a film assembly 5 that the temperature control device 4 has is provided between the pad and the seat cover.

  The temperature adjusting device 4 includes a film assembly 5 and control means (not shown). Hereinafter, the configuration of the film assembly 5 will be described in detail. The film assembly 5 shown in FIGS. 2 to 4 is formed by weaving a first film body 50a and a second film body 50b. The configuration of the first film body 50a and the second film body 50b is the same except for the part specifically described below.

  The film body 50 includes a base material 51 and a Peltier element portion 52. The base material 51 is a film-like (sheet-like) member formed of a non-conductive material. The material constituting the substrate 51 may be any material as long as it can be easily bent.

  The Peltier element portion 52 is a film-like portion formed on the base material 51. It can be formed by so-called photolithography or the like. The Peltier element portion 52 is a structure in which one Peltier element composed of an electrode 521, a p-type semiconductor 522, and an n-type semiconductor 523 is connected in series. Specifically, the electrode 521 (conductor), the p-type semiconductor 522, the n-type semiconductor 523, the electrode 521, the p-type semiconductor 522, etc. are formed on the substrate 51 so that the respective materials are arranged in a straight line. Thus, the Peltier element unit 52 is configured. The electrode 521, the p-type semiconductor 522, and the n-type semiconductor 523 are each formed in a substantially rectangular shape. The Peltier element portion 52 in the present embodiment is folded at the side edge of the base material 51 and has a substantially square shape as a whole. Terminal electrodes 521 are positioned at both ends of the Peltier element portions 52 connected in series. Specifically, an input electrode 521a and a connection electrode 521b, which will be described in detail later, are located at one corner and the other corner of the Peltier element portion 52 having a substantially square shape.

  The first film body 50a and the second film body 50b are different in the direction in which the Peltier element portion 52 extends. As shown in FIG. 3A and the like, the Peltier element portion 52 of the first film body 50a is folded back at the portion extending linearly in the width direction, so that the portion extending linearly in the width direction extends in the vertical direction. (Hereinafter, the portion extending linearly may be referred to as the first row portion, the second row portion, the third row portion,... In this order from the input electrode 521a side). The electrodes 521 of the Peltier element portion 52 of the first film body 50a are substantially the same in the width direction except at least the input electrode 521a and the connection electrode 521b, and are arranged in the vertical direction.

  As shown in FIG. 3B and the like, the Peltier element portion 52 of the second film body 50b has a portion extending linearly in the vertical direction by folding back a portion extending linearly in the vertical direction. (Hereinafter, the linearly extending portion may be referred to as a first row portion, a second row portion, a third row portion,... In order from the input electrode 521a side). The electrodes 521 of the Peltier element portion 52 of the second film body 50b are substantially the same in the vertical direction except for at least the input electrode 521a and the connection electrode 521b, and are arranged in the width direction.

  The number of turns of the first film body 50a and the second film body 50b (the number of linear portions) can be changed as appropriate. However, the length of the linear part of the first film body 50a and the second film body 50b and the number of turns are set to be the same.

  Further, the semiconductors of the Peltier element portion 52 of the first film body 50a have substantially the same position in the width direction and are arranged in the vertical direction. Similarly, the semiconductors of the Peltier element portion 52 of the second film body 50b are substantially the same in the vertical direction and are arranged in the width direction. Here, the Peltier element portion 52 of the first film body 50a is formed such that the same type of semiconductor continues twice in the vertical direction. That is, when viewed in the vertical direction,... P-type semiconductor 522, p-type semiconductor 522, n-type semiconductor 523, n-type semiconductor 523, and so on. Similarly, the Peltier element portion 52 of the second film body 50b is formed such that the same type of semiconductor continues twice in the width direction. In other words, when viewed in the lateral direction,..., P-type semiconductor 522, p-type semiconductor 522, n-type semiconductor 523, n-type semiconductor 523,.

  In the present embodiment, in the first film body 50a, between the first row portion and the second row portion, between the third row portion and the fourth row portion, the fifth row portion and the sixth row portion. The substrate 51 does not exist during the period (the substrate 51 is cut off). That is, there is a gap 511 that is open on the input electrode 521a side. On the other hand, the base material 51 is between the second and third line parts, between the fourth and fifth line parts, between the sixth and seventh line parts, etc. Exists. That is, they are physically connected via the base material 51. And the part connected via the said base material 51 has located the p-type semiconductor 522 and the n-type semiconductor 523 on both sides of the base material 51 in between.

  Further, in the second film body 50b, between the first row portion and the second row portion, between the third row portion and the fourth row portion, the fifth row portion and the sixth row portion,... The base material 51 does not exist during this period (the base material 51 is cut off). That is, there is a gap 511 that is open on the input electrode 521a side. On the other hand, between the second row portion and the third row portion, between the fourth row portion and the fifth row portion, between the sixth row portion and the seventh row portion,... Exists. That is, they are physically connected via the base material 51. And the part connected via the said base material 51 has located the p-type semiconductor 522 and the n-type semiconductor 523 on both sides of the base material 51 (henceforth, the said p-type semiconductor 522 in the base material 51, and A portion located between the n-type semiconductors 523 may be referred to as a connection portion 512).

  The film assembly 5 is configured by weaving the first film body 50a and the second film body 50b configured as described above. Specifically, the second film body 50b is passed through the gap 511 formed in the first film body 50a and extending in the width direction, and the first film body is inserted in the gap 511 formed in the second film body 50b and extending in the vertical direction. By passing 50a, a film assembly 5 is obtained in which the first film body and the second film body 50b appear alternately in both the vertical direction and the width direction. That is, as viewed from one surface of the film assembly 5, the first film body 50a is positioned in front, the second film body 50b is positioned in the rear, and the second film body 50b is positioned in front. The area where the film body 50a is located rearward is configured to alternately exist in the vertical direction and the width direction.

  The connection electrodes 521b located at one end of the first film body 50a and the second film body 50b are connected by caulking or the like. Thereby, the Peltier element part 52 formed in the 1st film body 50a and the Peltier element part 52 formed in the 2nd film body 50b will be in the state connected electrically. On the other hand, the input electrode 521a located at the other end of the first film body 50a and the second film body 50b is electrically connected to a power source (not shown) via a switch or the like. When power is supplied from the power source under the control of the control means, at the junction between the electrode 521 and the p-type semiconductor 522 or the n-type semiconductor 523 in the Peltier element portion 52 formed in the first film body 50a and the second film body 50b. Exothermic or endothermic phenomenon occurs. That is, heat is generated in a portion close to a certain electrode 521, and heat is generated in a portion close to the electrode 521 adjacent to the semiconductor nip. When the polarity (direction) of the current supplied through the input electrode 521a is reversed, heat absorption occurs in a portion close to a certain electrode 521, and heat generation occurs in a portion close to the adjacent electrode 521 across the semiconductor (FIGS. 5 and 6). reference). Hereinafter, when a current of one polarity is energized (when a current of the other polarity is energized), a portion close to the electrode 521 that generates heat (absorbs heat) at the junction with the semiconductor is defined as the first region 61 and one polarity. The region where the phenomenon opposite to the first region 61 occurs, that is, the electrode 521 that absorbs heat (heats generated) at the junction with the semiconductor when the other current is applied (when the other polarity current is applied). 62.

  In the present embodiment, the first regions 61 and the second regions 62 are alternately positioned in both the width direction and the vertical direction of the first film body 50a and the second film body 50b. As shown in FIGS. 5C and 6C, in the film assembly 5 in which the first film body 50a and the second film body 50b are woven, the first region 61 in one film body 50 is used. And at least a part of the second region 62 in the other film body 50 are configured to overlap each other. That is, in the film assembly 5, the first region 61 is wider than the second region 62 on one surface side (the region exposed on the one surface side is closer to the first region 61 than the second region 62. The second region 62 is wider than the first region 61 on the other surface side (the region exposed on the other surface side is wider in the second region 62 than in the first region 61). . Therefore, when a current of one polarity is applied, one surface of the film assembly 5 becomes a heat generating surface, and the other surface becomes a heat absorbing surface (see FIG. 5C). When a current of the other polarity is applied, one surface of the film assembly 5 becomes a heat absorbing surface, and the other surface becomes a heat generating surface (see FIG. 6C). 4 to 6, the gap 511 is enlarged for easy understanding of the drawings, but the gap 511 is reduced so that substantially the entire first region 61 and substantially the entire second region 62 overlap each other. It is preferable (a configuration in which only the first region 61 exists on one surface).

  In the present embodiment, the film assembly 5 of the temperature adjusting device 4 configured as described above is disposed on the back surface of the seat cover. By controlling the polarity (direction) of the current by the control means of the temperature adjusting device 4, the mode in which the sheet cover side of the film assembly 5 generates heat and the mode in which the sheet cover side absorbs heat are switched. That is, the seat surface can be air-conditioned.

  Moreover, in this embodiment, the 1st film body 50a and the 2nd film body 50b have the part which the 1st area | region 61 near the certain electrode 521 and the 1st area | region 61 near the other electrode 521 adjoined. Similarly, a second region 62 close to a certain electrode 521 and a second region 62 close to another electrode 521 are adjacent to each other. Specifically, the first regions 61 or the second regions 62 are adjacent to each other with the connection portion 512 of the base material 51 interposed therebetween. In the present embodiment, the second and third line parts, the fourth and fifth line parts, the sixth and seventh line parts of the first film body 50a The second row portion and the third row portion, the fourth row portion and the fifth row portion, the sixth row portion and the seventh row portion of the second film body 50b are configured as follows. It is comprised in this way. That is, the first area 61 and the second area 62 are not alternately positioned in units of rows or columns, but have a portion where the areas are located together.

  In the case where the first region 61 and the second region 62 are alternately positioned, one heat generation region and one endothermic region are small and interfere with each other (cancel each other), thereby generating heat or endotherm of the entire film assembly 5. Performance may be reduced. In the present embodiment, by providing a portion where adjacent regions of the same type are provided, and increasing one heat generation region and heat absorption region (a configuration in which the same type of region has an adjacent portion via the connecting portion 512), heat generation or It is suppressing that endothermic performance falls. However, as long as each first region 61 and second region 62 can be made sufficiently large, they may be configured as in the second embodiment described below. In addition, the first film body 50a and the second film body 50b can be easily knitted by including the portion connected by the connection portion 512 as described above.

  Hereinafter, another embodiment of the present invention (a modified example of the temperature control device 4 included in the vehicle seat 1) will be described focusing on differences from the first embodiment.

  The film assembly 5 of the temperature control device in the second embodiment shown in FIG. 7 is formed by weaving the first film body 50a and the second film body 50b in units of rows or columns. In this case, the Peltier element portion 52 of the first film body 50a is formed so that the first regions 61 and the second regions 62 are alternately arranged in the vertical direction. Similarly, the Peltier element portion 52 of the second film body 50b is formed so that the first regions 61 and the second regions 62 are alternately arranged in the width direction. The first film body 50a and the second film body 50b can be obtained by not providing the electrode 521 in the U-turned portion. The first film body 50a and the second film body 50b are woven in units of rows or columns, whereby the film body assembly 5 in which the first region 61 is wider than the second region 62 on one surface side is obtained.

  If each of the first region 61 and the second region 62 can be made sufficiently large, the heat generation region and the heat absorption region interfere with each other, so that the heat generation or heat absorption performance of the film assembly 5 as a whole is unlikely to deteriorate. Therefore, the first film body 50a and the second film body 50b may be woven in units of rows or columns as in the present embodiment. The film assembly 5 in this embodiment has an advantage that the eyes as a woven fabric become fine.

  The temperature control device in the third embodiment shown in FIG. 8 includes a plurality of film assemblies 5. The configuration of each film assembly 5 may be that of the first embodiment or that of the second embodiment. The plurality of film assemblies 5 are stacked so that the peripheral edges thereof coincide with each other. Specifically, all the film assemblies 5 have the first region 61 (second region 62) side facing forward and the second region 62 (first region 61) side facing rear. Overlaid with. That is, the one surface of a certain film assembly 5 and the surface opposite to the one surface of another film assembly 5 adjacent to the certain film assembly 5 are overlapped with each other. The example shown in FIG. 8 includes three film assembly 5 (first film assembly 5a to third film assembly 5c).

  When the Peltier element portion 52 of each film assembly 5 is energized, one surface generates heat and the other surface absorbs heat. In order to warm the sheet, when the front surface of the first film assembly 5a located at the foremost position is in a heat generating state, the rear surface is in a heat absorbing state. And the front surface of the 2nd film body group 5b located in one back is made into a heat-emitting state. In this way, the rear surface of the first film body set 5a located at the foremost side will generate an endothermic phenomenon, but by the heat emitted from the front surface of the second film body set 5b located behind it, The rear surface of the first film assembly 5a is warmed. Therefore, the heat generation effect from the front surface of the first film assembly 5a located in the foremost position is enhanced. The heat generation effect of the second film assembly 5b is enhanced by the third film assembly 5c located behind the second film assembly 5b.

  Similarly, when the front surface of the first film assembly 5a located at the foremost position is in an endothermic state in order to cool the sheet, the rear surface is in an exothermic state. And let the front surface of the 2nd film body group 5b located in the back one be an endothermic state. In this way, the rear surface of the first film assembly 5a located at the foremost side will generate a heat generation phenomenon, but the first film body assembly 5b located behind it will absorb heat at the front surface of the first film assembly 5b. The rear surface of the film assembly 5a is cooled. Therefore, the endothermic (cooling) effect on the front surface of the first film assembly 5a located at the foremost position is enhanced. Moreover, the endothermic (cooling) effect of the second film assembly 5b is enhanced by the third film assembly 5c located behind the second film assembly 5b.

  As described above, in the temperature control device according to the present embodiment, it is the first film body assembly 5a positioned at the foremost position that actually warms or cools the sheet, but is positioned rearward of the first film body assembly 5a. The film assembly 5 (the second film assembly 5b and the third film assembly 5c in the present embodiment) enhances the heat generation or endothermic performance of the first film assembly 5a. That is, the effect of warming the sheet or cooling the sheet can be enhanced as compared with the temperature adjusting device 4 using the single film assembly 5. In order to improve the heat conduction between the film assembly 5, between each film assembly 5, a heat conductive member 70 having excellent thermal conductivity (preferably a sheet-like member that easily deforms together with the film assembly 5) is provided. It should be interposed.

  A temperature control device 4 in the fourth embodiment shown in FIG. 9 includes a blower 80 in addition to one or a plurality of film assemblies 5. When it is set as the structure which has the several film body group 5, the structure (how to overlap) is the same as the thing of the said 3rd embodiment. The air blower 80 is provided further rearward of the film assembly 5 located at the rearmost position. The blower 80 may have any structure as long as the air in the space behind the film assembly 5 located at the rearmost side can escape to the outside. The air blower 80 in this embodiment is provided with the ventilation path 81 and the fan 82 which were formed in the back of the film body assembly 5 located back most. By driving the fan 82, the air in the ventilation path 81 is released to the outside.

  By driving such a blower 80, the air on the rear surface side of the film assembly 5 located at the rearmost side is released. If the rear surface of the film assembly 5 located at the rearmost position is in a heat generation state, the heated air heated thereby is released, and if it is in the heat absorption state, the cooled cold air is released. If the temperature adjusting device 4 is provided with only one film assembly 5, the heat generation or heat absorption effect on the front surface of the film assembly 5, that is, the effect of heating or cooling the sheet is enhanced by driving the blower 80. If the temperature control device 4 includes a plurality of film assemblies 5, the rear surface of the film assembly 5 positioned forward is heated by the film assembly 5 positioned most rearward by driving the blower 80. Or since the effect which cools increases, the effect which warms or cools the sheet | seat by the film assembly 5 located in the forefront increases. Note that “air blowing” in the present embodiment includes not only an aspect of sending air but also an aspect of sucking air.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to the said embodiment at all, A various change is possible in the range which does not deviate from the summary of this invention.

  Although the temperature control apparatus 4 in each said embodiment demonstrated that the film assembly 5 was arrange | positioned between a pad and a seat cover, the position to arrange | position is not limited to a specific position. Absent. Moreover, it is good also as a structure which construct | assembles what corresponds to the said film assembly 5 by making at least one part itself of a seat cover into the base material 51.

  Moreover, the film assembly 5 in each of the embodiments described above alternately includes a portion where the first film body 50a is positioned forward and a portion where the second film body 50b is positioned forward in both the vertical direction and the width direction. However, if the first region 61 is wider than the second region 62 on one side of the film assembly 5, it does not exist alternately as described above. Also good. For example, although the portion where the first film body 50a is located in the front and the portion where the second film body 50b is located in the front are alternately present in the width direction, the structure may be constant in the vertical direction. .

  Moreover, although the temperature control apparatus 4 in each said embodiment demonstrated having the film body assembly | assembly 5 in which the 1st film body 50a and the 2nd film body 50b were woven, only one film body 50 was demonstrated. You may have. For example, as shown in FIG. 10, one of a region that generates heat and a region that absorbs heat (first region 61 and second region 62) when a current of one polarity is applied is covered with a heat insulating material 90. You may have things. If it is set as this structure, it can be set as the temperature control apparatus 4 which the area | region which is not covered with the heat insulating material 90 heats or cools a sheet | seat. The other regions are covered with the heat insulating material 90 and thus do not contribute much to temperature control. The more the heat conduction blocking performance of the heat insulating material 90 is improved, the smaller the contribution to the temperature control of the region covered with the heat insulating material 90 can be made.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 4 Temperature control apparatus 5 Film assembly 50 Film body 50a First film body 50b Second film body 51 Base material 511 Gap 512 Connection part 52 Peltier element part 521 Electrode 521a Input electrode 521b Connection electrode 522 P-type semiconductor 523 n-type semiconductor 61 first region 62 second region 5a first film assembly 5b second film assembly 5c third film assembly 70 heat conducting member 80 blower 81 ventilation path 82 fan 90 heat insulating material

Claims (3)

A vehicle seat equipped with a temperature control device,
The temperature control device is:
A film-like substrate formed of a non-conductive material;
A Peltier element part in which a plurality of Peltier elements composed of a set of electrodes, a p-type semiconductor, and an n-type semiconductor film formed on the substrate are connected in series;
A vehicle seat characterized by comprising: The temperature control device is:
The first film body in which the Peltier element part is formed on a certain base material and the second film body in which the Peltier element part is formed on a base material different from the certain base material are woven,
At least part of the first region near the electrode that generates heat when the current of one polarity is energized, and the electrode that absorbs heat when the current of one polarity is energized The vehicle body according to claim 1, further comprising a film assembly in which at least a part of the near second area overlaps and the first area is wider than the second area on one surface side. Sheet. The temperature control device is:
A plurality of the film assemblies that overlap so that the surface on the one side of a certain film assembly and the surface on the opposite side of the one surface of another film assembly adjacent to the certain film assembly face each other; The vehicle seat according to claim 2.

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