JP2010142274A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively adjust the temperature of the surrounding space of a vehicle seat by efficiently circulating air for air-conditioning the surrounding space of the vehicle seat. <P>SOLUTION: In the outer shape of the side of supporting a sitting person in a seat cushion 30 and a seat back 20, top plate parts 20a and 30a with a roughly flat center part for supporting the sitting person, and bank parts 20b and 30b in which both side parts of the top plate parts 20a and 30a are raised higher than the top plate parts 20a and 30a are formed. The vehicle seat 10 is provided with an air conditioner 50, and the air conditioner includes a blow-off port 52, a suction port 54, a duct 70, and a blower. The blow-off port 52 and the suction port 54 are formed in one of the bank parts 20b and 30b of the seat cushion 30 or the seat back 20, and the positions of the blow-off port 52 and the suction port 54 are such that blown-off air blown off from the blow-off port 52 can be circulated and sucked by the suction port 54. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat installed in a vehicle. In particular, the present invention relates to a vehicle seat provided with an air conditioner for air-conditioning a surrounding space of the vehicle seat.

Conventionally, the vehicle seat of patent documents 1 to patent documents 4 is known.
This vehicle seat sucks cold air (or warm air) blown downward from the top or side of the headrest or the air outlet provided on the ceiling of the passenger compartment through the suction port provided on the seat cushion and the seat back. Then, the air is ventilated through the duct, and is cooled (or heated) with a heat exchanger and blown out from the outlet again. As described above, a technique for improving air conditioning efficiency by circulating air cooled (or heated) by a heat exchanger is known.

Japanese Patent Laid-Open No. 5-213056 JP-A-5-301516 JP-A-6-8726 JP-A-5-286346

However, when disposing the air outlet so as to blow downward from the headrest, it is necessary to install the duct end portion configured as the air outlet on the upper part or the side part of the headrest, and the appearance is poor. In addition, since the headrest is raised and lowered according to the physique such as the height of the seated person, it is necessary to move the air outlet up and down according to the raising and lowering of the headrest, resulting in a complicated structure.
Further, when the air outlet is arranged on the ceiling, it is necessary to stretch the duct between the seat and the ceiling, which is difficult in consideration of the vehicle layout. Moreover, since the distance of the duct between a sheet | seat and a ceiling becomes long, in order to prevent a heat loss, it is necessary to suppress the temperature change of the air which ventilates the inside of a duct, such as covering a duct with a heat insulating material. For this reason, there are problems in terms of structure and cost. In addition, when the suction port provided in the seat cushion and the seat back is provided on the top plate portion where the central portion that supports the seat occupant is provided on the substantially flat top plate portion, the top plate portion is covered when the seat occupant is seated. There is a risk of blocking the suction port. Moreover, there is a possibility that the air flow may be blocked by the seated person's head at the air outlets disposed in the upper part or the side part of the headrest.

Furthermore, in the structure which the air from the blower outlet arrange | positioned at a headrest attracts | sucks with the suction opening provided in the seat cushion and the seat back, there exists a further problem. That is, the air around the seat cushion and the seat back has different temperatures, but there is a problem that the temperature cannot be set at each position. Further, in the width direction of the vehicle seat, the window side and the vehicle interior side have different temperatures in the vehicle interior, but there is a problem that the temperature cannot be set according to the vehicle interior temperature at each position.
Therefore, as a result of intensive studies, the inventor has found that the outer shape of the seat cushion and the seat back of the vehicle seat that supports the seat occupant is substantially flat at the center portion that supports the seat occupant, and the seat occupant. It paid attention to that the both sides part of this top plate part which supports the side of this was formed from the bank part raised from this top plate part. That is, since the top plate is a part that supports the seated person, there is a possibility that the seat is covered with the body of the seated person when the seated person sits, whereas the bank part supports the side of the seated person. Yes, even when a seated person is seated, it is a part that is not easily covered with the body of the seated person. If the bank portion can be used effectively, air for air-conditioning the space around the vehicle seat can be circulated efficiently.

  Thus, the present invention was devised in view of such points, and the problem to be solved by the present invention is to efficiently circulate air for air-conditioning the surrounding space of a vehicle seat. Thus, the temperature of the surrounding space of the vehicle seat is effectively adjusted.

In order to solve the above problems, the vehicle seat according to the present invention employs the following means.
A first aspect of the present invention includes a seat cushion that serves as a seating surface for a seated person and a seat back that serves as a backrest for the seated person, and the outer shape of the seat cushion and the seat back that supports the seated person. Is formed with a top plate portion having a substantially flat central portion for supporting a seated person, and a bank portion for supporting both sides of the seated person, with both side portions of the top plate portion being raised from the top plate portion. The vehicle seat is provided with an air conditioner for air-conditioning a surrounding space of the vehicle seat, and the configuration of the air conditioner includes an air outlet for blowing out air, A suction port that sucks in the blown air blown from the blower outlet, a duct that connects the blower outlet and the suction port so that the suctioned air sucked from the suction port can be blown again from the blower port, and the suction Before the mouth to the outlet It is comprised from the air blower arrange | positioned between ducts, The said blower outlet and the said suction port are formed in the bank part of either the said seat cushion or the said seat back, and are formed in this bank part The positions of the air outlet and the suction port are characterized by being circulated positions where the air blown from the air outlet can be sucked into the suction port.

  According to the first aspect of the invention, the configuration of the air conditioner is such that the air outlet that blows out air, the suction port that sucks the blown air blown from the blower outlet, and the suction air sucked from the suction port blows again. It is comprised from the duct which connects a blower outlet and a suction opening so that ventilation | gas_flowing is possible from the outlet, and the air blower arrange | positioned between the ducts from a suction opening to a blower outlet. The air outlet and the suction port are formed on the bank portion of either the seat cushion or the seat back. The positions of the air outlet and the suction port formed in the bank portion are circulatable positions where the air blown from the air outlet can be sucked into the suction port. That is, the air outlet and the suction port formed in the bank portion are formed in a portion that is difficult to be covered with the body of the seated person even when the seated person sits down. Therefore, the blown air blown out from the blowout port can be sucked into the suction port without being blocked by the seated person's body. Therefore, the air for air-conditioning the space around the vehicle seat can be efficiently circulated to effectively adjust the temperature of the space around the vehicle seat.

  According to a second aspect of the present invention, in the vehicle seat according to the first aspect, as a configuration of the air conditioner, a heat exchanger that heats or cools the suction air sucked from the suction port is provided in the duct. It is characterized by having.

  According to the second invention, as a configuration of the air conditioner, the duct includes a heat exchanger that heats or cools the suction air sucked from the suction port. As a result, the suction air sucked from the suction port can be heated or cooled by the heat exchanger while being vented through the duct and then blown out again at the air outlet, so that the temperature of the surrounding space of the vehicle seat can be further controlled. In addition, the air around the seat can be air-conditioned with less electric power by sucking and circulating once again the heated or cooled air.

A third invention of the present invention is the vehicle seat according to the first invention or the second invention,
The arrangement configuration in which the blown air and the suction air can be circulated is an arrangement configuration in which the direction of the blower provided in the blowout port and the suction port is directed inward.

  According to the third aspect of the invention, the arrangement configuration in which the blown air and the suction air can circulate is an arrangement configuration in which the direction of the blower provided at the blowout port and the suction port is inward. As a result, the flow of the blown air blown out from the blower outlet and the flow of the sucked air sucked into the suction port intersect, so that the flow of the blown air blown out from the blower outlet is more sucked into the suction port. Can do. Therefore, the air for air-conditioning the surrounding space of the vehicle seat can be circulated more efficiently, and the temperature of the surrounding space of the vehicle seat can be adjusted effectively.

  According to a fourth aspect of the present invention, in the vehicle seat according to any one of the first to third aspects, the air conditioner is provided in each of the seat cushion and the seat back, and the air outlet And the suction port are formed side by side on the inner side and outer side seat cushions of the passenger compartment and the bank of the seat back as viewed from the position inside the passenger compartment, and air can be circulated in each of the seat cushion and the seat back. It is characterized by being.

  According to the fourth aspect of the invention, the air conditioner is individually provided on the seat cushion and the seat back. Therefore, since air can be circulated in each of the seat cushion and the seat back, the temperature and the air volume of the seat cushion, the seat back can be individually set. Further, the air outlet and the suction port are formed side by side with the seat cushions on the inner side and the outer side of the vehicle compartment and the bank portion of the seat back as viewed in the vehicle interior positional relationship. This is formed in a portion that is not covered with the body of the seated person even when the seated person sits down. Therefore, the blown air blown out from the blowout port can be sucked into the suction port without being blocked by the seated person's body. Moreover, the air for air-conditioning the surrounding space of the vehicle seat is configured to circulate in the width direction of the vehicle seat. In other words, this is a configuration that circulates in a direction transverse to the seated person's body. Therefore, the air for air-conditioning the space around the vehicle seat can circulate without being blocked by the seated person's head or the like. Thereby, the air for air-conditioning the surrounding space of a vehicle seat can be circulated efficiently, and the temperature adjustment of the surrounding space of a vehicle seat can be performed effectively.

  According to a fifth aspect of the present invention, in the vehicle seat according to the fourth aspect, the air outlet and the suction port are arranged and formed on the same side portion side.

  According to the fifth aspect of the invention, the seat cushion and the air outlet and the suction port provided in the seat back are arranged and formed on the same side portion side. Therefore, the air for air-conditioning the surrounding space of the vehicle seat can circulate in the same direction of flow in the width direction of the vehicle seat (a direction transverse to the seated person's body). Thereby, it can be set as the structure which blows off cool air (warm air) from the direction (for example, arrange | positioning a blower outlet in the window side) where temperature change is remarkable by the external air outside a vehicle. Therefore, the air for air-conditioning the surrounding space of the vehicle seat can be efficiently circulated to effectively adjust the temperature of the surrounding space of the vehicle seat.

  According to a sixth aspect of the present invention, in the vehicle seat according to any one of the first to third aspects, the air conditioner is provided on both sides of the vehicle seat, and the seat cushion Or the said blower outlet is formed in the bank part of either one of the said seat back, and the said suction port is formed in the other, It is arrange | positioned so that circulation with the said seat cushion and the said seat back is possible.

  According to the sixth aspect of the invention, the air conditioner is provided on each side portion of the vehicle seat, the air outlet is formed on one bank portion of the seat cushion or the seat back, and the suction port is on the other side. The seat cushion and the seat back are formed so as to be circulated. Thereby, the temperature and the air volume can be individually set at each of the both side portions of the vehicle seat (in other words, the left and right sides of the seated person). Thereby, the air for air-conditioning the surrounding space of a vehicle seat can be circulated efficiently, and the temperature adjustment of the surrounding space of a vehicle seat can be performed effectively.

The present invention can obtain the following effects by taking the measures of the above inventions.
First, according to the vehicle seat of the first aspect of the invention, the air outlet and the suction port formed in the bank portion are formed in a portion that is not covered with the body of the seated person even when the seated person sits down. Therefore, the blown air blown out from the blowout port can be sucked into the suction port without being blocked by the seated person's body. Therefore, the air for air-conditioning the surrounding space of the vehicle seat can be efficiently circulated to effectively adjust the temperature of the surrounding space of the vehicle seat.
Next, according to the vehicle seat of the second aspect of the invention, the suction air sucked from the suction port can be heated or cooled by the heat exchanger while being blown through the duct, and can be blown out again at the outlet. Therefore, the temperature of the surrounding space of the vehicle seat can be adjusted more effectively, and the air around the seat can be air-conditioned with less power by sucking and circulating the heated or cooled air again.
Next, according to the vehicle seat of the third aspect of the invention, the flow of the blown air blown from the blowout port and the flow of the suction air sucked into the suction port intersect with each other. The flow of blown air can be sucked into the suction port. Therefore, the air for air-conditioning the surrounding space of the vehicle seat can be circulated more efficiently, and the temperature of the surrounding space of the vehicle seat can be adjusted effectively.

Next, according to the vehicle seat of the fourth invention, air can be circulated in each of the seat cushion and the seat back, so that the temperature and the air volume of the seat cushion, the seat back can be individually set. it can. Further, the air outlet and the suction port are formed side by side with the seat cushions on the inner side and the outer side of the vehicle compartment and the bank portion of the seat back as viewed in the vehicle interior positional relationship. This is formed in a portion that is not covered with the body of the seated person even when the seated person sits down. Therefore, the blown air blown out from the blowout port can be sucked into the suction port without being blocked by the seated person's body. Moreover, the air for air-conditioning the surrounding space of the vehicle seat is configured to circulate in the width direction of the vehicle seat. In other words, this is a configuration that circulates in a direction transverse to the seated person's body. Therefore, the air for air-conditioning the space around the vehicle seat can circulate without being blocked by the seated person's head or the like. Thereby, the air for air-conditioning the surrounding space of a vehicle seat can be circulated efficiently, and the temperature adjustment of the surrounding space of a vehicle seat can be performed effectively.
Next, according to the vehicle seat of the fifth aspect, air for air-conditioning the surrounding space of the vehicle seat can circulate in the same direction of flow in the width direction of the vehicle seat (seats) Direction transverse to the body). Thereby, it can be set as the structure which blows off cool air (warm air) from the direction (for example, arrange | positioning a blower outlet in the window side) where temperature change is remarkable by the external air outside a vehicle. Therefore, the air for air-conditioning the surrounding space of the vehicle seat can be efficiently circulated to effectively adjust the temperature of the surrounding space of the vehicle seat.
Next, according to the vehicle seat of the sixth aspect of the invention, the temperature and the air volume can be individually set at each of both side portions of the vehicle seat (in other words, right and left of the seated person). Thereby, the air for air-conditioning the surrounding space of a vehicle seat can be circulated efficiently, and the temperature adjustment of the surrounding space of a vehicle seat can be performed effectively.

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

First, the vehicle seat according to the first embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view illustrating a schematic configuration of the vehicle seat according to the first embodiment. FIG. 2 is a perspective view illustrating the mounting configuration of the air conditioner in the vehicle seat according to the first embodiment. 3 is a cross-sectional view of the vehicle seat according to the first embodiment taken along the line III-III in FIG. (A) The figure is sectional drawing which showed the flow of the blowing air and the flow of suction air in the blower outlet and suction port which are comprised as an air conditioner. (B) The figure is sectional drawing which showed the modification as an arrangement configuration which the direction of the air blower provided in the blower outlet and suction port comprised as an air conditioner turns inward.
FIG. 4 is an enlarged cross-sectional view of a modified example of the heat exchanger configured in the vehicle seat air-conditioning apparatus according to the first embodiment. (A) The figure is an expanded sectional view showing what flows in the right direction (counterclockwise rotation direction in Drawing 3) on the figure on the flow of the heat exchanger constituted in an air-conditioner. (B) The figure is an expanded sectional view showing what the flow of the heat exchanger constituted in the air conditioner flows in the left direction (clockwise rotation in FIG. 3) on the drawing. FIG. 5 is an exploded perspective view showing, in an enlarged manner, a mounting portion of the vehicle seat air conditioner according to the first embodiment.

  In addition, in the vehicle seat of a present Example, it has the characteristic about the air conditioner provided in the vehicle seat. The other parts do not need to be changed, and therefore their description and illustration may be omitted. Therefore, in FIG. 1, illustration of the configuration of the reclining device 40 is omitted. Further, in FIG. 2, in order to illustrate the mounting configuration of the air conditioner in the frame serving as the frame of the vehicle seat, among the components configured in the vehicle seat, a headrest, a support spring member, a seat pad, a seat skin, Illustration of assembly parts such as a backboard is omitted. In each figure, FWD and UPR indicated by arrows indicate the front and upper sides of the vehicle seat.

The vehicle seat of the present embodiment is employed in any of the driver seat or the passenger seat arranged in the first row of the vehicle, and the rear seat arranged in the second row or the third row. Note that the vehicle seat of the first embodiment shows the configuration of the driver seat of the front seat of the vehicle.
As shown in FIG. 1, a vehicle seat 10 is installed in a vehicle, and a reclining device 40 (see FIG. 2) in which a seat back 20 that serves as a backrest of a seated person is interposed on both sides of the lower end thereof. The seat cushion 30 serving as the seating surface of the seated person. In addition, the headrest 42 that serves as a headrest of the seated person has a stay (not shown) that is configured by a metal rod extending downward from the lower portion of the headrest 42. The headrest 42 is supported by the stay being inserted into the seatback 20 from above the seatback 20. Further, the vehicle seat 10 is provided with an air conditioner 50 for air-conditioning the space around the vehicle seat 10 in the seat back 20 and the seat cushion 30.

The seat back 20 will be described.
As shown in FIGS. 1 to 3, the seat back 20 is configured as a backrest portion of a seated person, and is roughly illustrated as a back frame 22, a reinforcing member 22 c, a support spring member 22 e, a connecting shaft 22 d, a seat. A pad 24, an outer skin 26, and a back board 28 are provided. The seat back 20 is provided with an air conditioner 50 described later. Each structure comprised in the seat back 20 is demonstrated.

The back frame 22 configured in the seat back 20 will be described.
As illustrated in FIG. 2, the back frame 22 constitutes a framework of the seat back 20 and is configured in a gate shape as a whole. The back frame 22 is formed by appropriately bending a metal plate member and a metal pipe. Specifically, the back frame 22 includes an upper frame 22a in which a metal pipe is bent into a U-shape, and a side frame 22b in which the upper portion of the metal plate member is drawn, and the upper frame 22a and the side frame. 22b is connected by appropriate spot welding.

Next, the reinforcing member 22c and the support spring member 22e configured in the seat back 20 will be described.
As shown in FIG. 2, the reinforcing member 22 c is provided to increase the rigidity of the back frame 22, and a support spring member 22 e that supports the seat pad 24 is attached thereto. The reinforcing member 22c is fixedly installed so that both sides of the lower portion of the side frame 22b of the back frame 22 are bridged by appropriately bending a metal plate.
As shown in FIGS. 2 and 3A, the support spring member 22e is for supporting the seat pad 24, and is formed by bending an appropriate wire and is spring elastic. And is attached to and supported by the reinforcing member 22 c substantially parallel to the back frame 22. Accordingly, the seat pad 24 is supported by supporting the back side of the seat pad 24 described later.

Next, the connecting shaft 22d configured in the seat back 20 will be described.
As shown in FIG. 2, the connecting shaft 22 d is provided so as to be bridged between the left and right reclining devices 40 provided at both sides of the lower end portion of the seat back 20. Since the connecting shaft 22d is connected to both the reclining devices 40, the operating force of the reclining device 40 on one side is transmitted to the reclining device 40 on the other side. Therefore, the operating states of both reclining devices 40 can be synchronized.

Next, the seat pad 24 and the skin 26 that are configured in the seat back 20 will be described.
As shown in FIG. 3A, the seat pad 24 is formed of an elastic material such as urethane foam. The seat pad 24 is placed on the back frame 22, and the back surface thereof is supported by a support spring member 22e. The surface of the seat pad 24 is formed as an outer shape of the surface (backrest surface) of the seat back 20 and is covered with a skin 26.

As shown in FIG. 1, the outer shape of the surface (backrest surface) of the seat back 20, that is, the side that supports the seated person, is roughly constituted by a top plate portion 20 a and a bank portion 20 b. The top plate portion 20a is a portion that supports the seated person, and the central portion is formed substantially flat. And the bank part 20b is a site | part which supports a seated person's side, and the both sides site | part of the top-plate part 20a is formed in the shape raised from the top-plate part 20a.
The vehicle seat 10 according to the first embodiment shows the configuration of the driver seat of the front seat of the vehicle. The configuration of the bank portion 20b of the seaback 20 of the driver seat will be described.
Of the bank portion 20b of the seat back 20, the left bank portion 20b (the right side when viewed from the seated person) is configured as the bank portion 20b on the outer side of the vehicle compartment as viewed in the vehicle interior position. Yes. 1, the right bank portion 20b (left side as viewed from the seated person) is configured as an inner bank portion 20b of the passenger compartment as viewed in the vehicle interior position.
The outer skin 26 is three-dimensionally sewn so as to be able to follow the outer shape of the seat pad 24, and follows the outer shape of the seat pad 24 by a suspended structure. The suspension structure is formed on the surface of the seat pad 24 by engaging a suspension wire (not shown) provided on the back side of the skin 26 with an insert wire (not shown) embedded in the seat pad 24. The skin 26 is suspended in a hanging groove (not shown).

Next, the backboard 28 configured in the seat back 20 will be described.
As shown in FIG. 3A, the backboard 28 is disposed on the back side of the seat back 20 and constitutes a design surface on the back side of the seat back 20. Further, the rigidity of the backboard 28 prevents an impact from the back side of the seat back 20 (for example, when a backseat hits the back side of the seat back 20) and protects the air conditioner 50, This impact is not transmitted to the seated person. The back board 28 is a plate-like member made of synthetic resin, and has an outer shape that is substantially the same as that of the back frame 22 and is configured to cover the entire back side of the seat back 20. Then, the seat pad 24 is fixed by being fitted to the back side of the seat back 20 which is the opposite side to the mounting surface side.

Next, the seat cushion 30 will be described.
As shown in FIGS. 1 and 2, the seat cushion 30 is configured as a seating surface of a seated person, and roughly includes a cushion frame 32, a link mechanism 33, a support spring member (not shown), and a seat pad. (Not shown) and a skin (not shown). The seat cushion 30 is provided with an air conditioner 50 described later. Each structure comprised in the seat cushion 30 is demonstrated.

The cushion frame 32 configured in the seat cushion 30 will be described.
As shown in FIG. 2, the cushion frame 32 constitutes a framework of the seat cushion 30. The cushion frame 32 has an elongated plate member formed in a substantially U-shaped cross section and is formed in a U shape having substantially the same width as that of the seat cushion 30, and is mounted on the slide rail 35 via the link mechanism 33 in the front and rear of the vehicle. It is slidably supported in the direction.
Although not shown in FIG. 2, the support spring member is for supporting a seat pad (not shown), and is formed by bending an appropriate wire and has spring elasticity. And is supported so as to be bridged over the link mechanism 33 substantially parallel to the cushion frame 32. Thus, the seat pad (not shown) is supported by supporting the back side of a seat pad (not shown) described later.

The seat pad (not shown) and the skin (not shown) configured in the seat cushion 30 will be described.
The basic structure of the seat pad and the skin is the same as that of the seat pad 24 and the skin 26 configured on the seat back 20. Although not shown, the seat pad is made of an elastic material such as urethane foam. The seat pad is put on the cushion frame 32, and the back surface thereof is supported by a support spring member. The surface of the seat pad is formed as an outer shape of the surface (seat surface) of the seat cushion 30 and is covered with a skin.
As shown in FIG. 1, the outer shape of the surface (seat surface) of the seat cushion 30, that is, the side that supports the seated person, is roughly constituted by a top plate portion 30 a and a bank portion 30 b. The top plate 30a is a part that supports the seated person, and the central part is formed substantially flat. And the bank part 30b is a site | part which supports a seated person's side, and the both sides site | part of the top-plate part 30a is formed in the shape raised from the top-plate part 30a.
The vehicle seat 10 of the first embodiment shows the configuration of the driver seat of the front seat of the vehicle. The configuration of the bank portion 30b of the seat cushion 30 of the driver seat will be described.
Of the bank portion 30b of the seat cushion 30, the left bank portion 30b (the right side when viewed from the seated person) is configured as the bank portion 30b on the outer side of the passenger compartment as viewed from the vehicle interior position. Yes. 1, the right bank portion 30b (the left side when viewed from the seated person) is configured as the inner bank portion 30b of the vehicle compartment as viewed in the vehicle interior positional relationship.
The skin is sewed three-dimensionally so as to be able to follow the outer shape of the seat pad, and follows the outer shape of the seat pad by the suspended structure. The suspension structure is a suspension formed on the surface of the seat pad by engaging a suspension wire (not shown) provided on the back side of the skin with an insert wire (not shown) embedded in the seat pad. The skin is suspended in a groove (not shown).

Next, the air conditioner 50 provided in the seat back 20 and the seat cushion 30 will be described.
As shown in FIG. 1 and FIG. 3A, the air conditioner 50 is configured to air-condition the surrounding space of the vehicle seat 10, and is roughly divided into an air outlet 52 and a suction port. 54, a blower 60, a duct 70, and a heat exchanger 80. The air conditioner 50 is provided in the seat cushion 30 and the seat back 20, respectively.
In addition, since the structure of this air conditioning apparatus 50 is the same structure in the seat back 20 and the seat cushion 30, the seat back 20 is demonstrated as a representative. First, each structure comprised in the air conditioner 50 is demonstrated.

The air outlet 52 and the suction port 54 which are comprised in the air conditioner 50 are demonstrated.
As shown in FIG. 1, the air outlet 52 is provided to ventilate the inside of a duct 70 described later and blow out the air heated or cooled by the heat exchanger 80 to the outside of the seat.
The formation position of this blower outlet 52 is formed in the bank part 20b of the seat back 20. FIG. As shown in detail in FIGS. 3 and 5, a plurality of through holes 56 are formed in the seat pad 24 at a position corresponding to the bank portion 20b. The skin 26 is formed with a plurality of vent holes 58 at positions corresponding to the through holes 56. Thus, the air heated in the duct 70 and heated or cooled by the heat exchanger 80 can be blown out of the seat.

As shown in FIG. 1, the suction port 54 is for sucking the blown air blown from the blower outlet 52, taking it into the duct 70, and sending it into a heat exchanger 80 described later.
The suction port 54 is formed at the bank portion 20 b of the seat back 20. As illustrated in detail in FIGS. 3 and 5, similarly to the air outlet 52, a plurality of through holes 56 are formed in the seat pad 24 at a position corresponding to the bank portion 20 b. The skin 26 is formed with a plurality of vent holes 58 at positions corresponding to the through holes 56. As a result, the blown air blown from the blower outlet 52 is sucked into the duct 70 and sent into the heat exchanger 80.

Next, the circulation arrangement | positioning structure which can attract | suck the blowing air blown from the blower outlet 52 in the blower outlet 52 and the suction opening 54 to the suction opening 54 is demonstrated.
Since the vehicle seat 10 of the first embodiment shows the configuration of the driver seat in the front seat of the vehicle, the arrangement of the air outlet 52 and the suction port 54 for the driver seat is representative of the seat back 20. Will be described in detail.
As shown in FIG. 1, the air outlet 52 and the suction port 54 are formed in the bank portion 20 b of the seat back 20 on the inner side and the outer side of the passenger compartment as viewed in the positional relationship of the passenger compartment.
Here, the air outlet 52 and the suction port 54 are a vehicle in which the left bank portion 20b (right side as viewed from the seated person) of the bank portion 20b of the seat back 20 is shown in FIG. It is configured as a bank portion 20b on the outer side of the chamber. An outlet 52 is formed in the outer bank portion 20b.
1, the right bank portion 20b (left side as viewed from the seated person) is configured as an inner bank portion 20b of the passenger compartment as viewed in the vehicle interior position. A suction port 54 is formed in the inner bank portion 20b.
The air outlet 52 and the suction port 54 are formed side by side on the inner bank portion 20b and the outer bank portion 20b of the seat back 20. This is a configuration in which air for air-conditioning the surrounding space of the vehicle seat 10 circulates in the width direction of the vehicle seat 10. In other words, the structure circulates in a direction transverse to the seated person's body.
Further, as shown in FIG. 3A, the air blower 60 is arranged in an inward direction in the air conditioner 50 provided in the air outlet 52 and the suction port 54. The position of the suction port 54 is formed in a direction facing each other. This will be described in more detail. The arrangement in which the central axis of the flow of the blown air blown out from the blower outlet 52 and the central axis of the flow of the sucked air sucked into the suction port 54 intersect with each other in a three-dimensional positional relationship. It is a configuration. Thereby, it becomes the position which can be circulated where the blowing air blown out from the blower outlet 52 can be sucked into the suction port 54.
The configuration of the air conditioner for the seat back 20 is similarly configured in the seat cushion 30. Therefore, air can be circulated in each of the seat cushion 30 and the seat back 20.
Further, the air outlet 52 and the suction port 54 formed in the seat cushion 30 and the bank portions 30b and 20b of the seat back 20 are disposed and formed on the same side portion side. Therefore, both the seat cushion 30 and the seat back 20 are configured such that the air of the air conditioner 50 is circulated from the same direction.

Next, the blower 60 configured in the air conditioner 50 will be described.
As shown in FIG. 2, the blower 60 is configured to circulate air for air-conditioning the surrounding space of the vehicle seat 10 via the blowout port 52 and the suction port 54. .
The blower 60 is disposed at the outlet portion of the blower outlet 52 and the inlet portion of the suction port 54 configured in the seat pad 24. The blower 60 is attached to the side frame 22 b of the back frame 22 of the seat back 20 via a bracket 62. The bracket 62 is a metal plate-like member, and has a coupling surface for coupling the bracket 62 to the side frame 22b and a mounting surface for mounting the blower 60. The coupling surface of the bracket 62 is rigidly coupled to the side frame 22b by fastening with bolts and nuts. Note that other connections such as welding may be used. The blower 60 is mounted on the mounting surface by fastening bolts and nuts. Other attachment methods such as fastening with screws and welding may be used.
As shown in FIG. 5, the blower 60 is attached to the seat pad 24 and the skin 26 in a state of being fixed to the side frame 22 b, and overlaps the through hole 56 of the seat pad 24 and the vent hole 58 of the skin 26. It is arranged with. As the blower 60, an axial fan having a size that can be disposed inside the bank portion 20b of the seat back 20 is selected.

Next, the duct 70 configured in the air conditioner 50 will be described.
As shown in FIGS. 2 and 3, this duct 70 connects the blowout port 52 and the suction port 54 so that the suction air sucked from the suction port 54 can be vented until it is blown out from the blowout port 52 again. To do. The duct 70 is formed in a tubular shape from synthetic rubber, synthetic resin, or the like, and is disposed between the back side of the seat pad 24 of the seat back 20 and the back board 28. The arrangement configuration of the duct 70 will be described in detail. First, one end of the duct 70 is connected from the outside of the blower 60 disposed at the outlet portion of the outlet 52 shown on the left side in FIG. And it is led to the back surface side of the seat pad 24 (see FIG. 3) of the seat back 20 so as to wind the side frame 22b of the back frame 22, and it is bridged to the side frame 22b arranged on the opposite side. Yes. And it connects to the outward side of the air blower 60 arrange | positioned in the entrance site | part of the suction port 54 shown on the right side on illustration of FIG.

Next, the heat exchanger 80 comprised in the air conditioner 50 will be described.
As illustrated in FIG. 3A, the heat exchanger 80 heats or cools the suction air sucked from the suction port 54. Here, the Peltier element 88 which is a kind of thermoelectric element is selected for the heat exchanger 80 of the air conditioner 50 in the vehicle seat 10 of the present embodiment. The Peltier element 88 is a plate-like semiconductor element that utilizes the Peltier effect that heat is transferred from one metal to the other when a current is passed through a joint between two kinds of metals. When a direct current is passed through the Peltier element 88, one surface absorbs heat and heat is generated on the opposite surface. Further, when the polarity of the current is reversed, the relationship between heat absorption and heat generation is reversed. The heat exchanger 80 of the present embodiment has a configuration in which heating or cooling is performed by attaching a heat sink 86 to the element and venting suction air.

As shown in FIG. 3A, the heat exchanger 80 is disposed in a duct 70 disposed between the suction port 54 and the blowout port 52. The first heat exchange channel 84a, the second heat exchange channel 84b, the heat sink 86, the Peltier element 88, the suction air introduction port 83a, the supply port 83b, and the discharge port 83c. Specifically, the inside of the duct 70 is partitioned by the partition wall 82 into two flow paths, a first heat exchange flow path 84a and a second heat exchange flow path 84b. A heat sink 86 is disposed in the central portion of the partition wall 82 so as to allow suction air to pass therethrough, and a Peltier element 88 is disposed between the heat sinks 86. The opposite heat exchange surfaces of the Peltier element 88 are contact-connected to both heat sinks 86, and between the two heat sinks 86, that is, between the first heat exchange flow path 84a and the second heat exchange flow path 84b, Heat exchange is performed according to the energization direction.
As illustrated in FIG. 1, the energization current of the blower 60 and the Peltier element 88 is controlled by the controller 90.

The operation of the vehicle seat 10 in the present embodiment having the above-described configuration is as follows.
As shown in FIG. 1, the controller 90 energizes the blower 60 and the Peltier element 88.
The blower 60 disposed at the suction port 54 is activated, and suction of air in the space around the vehicle seat 10 is started. The sucked suction air is blown through the duct 70 to the heat exchanger 80 provided in the duct 70. Then, the suction air blown to the heat exchanger 80 is introduced from the suction air introduction port 83a of the heat exchanger 80, and is introduced to both the first heat exchange channel 84a and the second heat exchange channel 84b. And heat exchange according to the energization direction of Peltier device 88 is performed between the 1st heat exchange channel 84a and the 2nd heat exchange channel 84b.
Then, the suction air heated or cooled by heat exchange by the Peltier element 88 in the first heat exchange flow path 84 a is led from the supply port 83 b to the outlet 52 through the duct 70, and is arranged in the outlet 52. The blower 60 is blown out as blown air from the bank portion 20b of the vehicle seat 10 to the outside.
On the other hand, the suction air that has been subjected to heat exchange by the Peltier element 88 in the second heat exchange flow path 84a is discharged from the discharge port 83c to the outside of the heat exchanger 80 and is discharged to the outside of the vehicle seat 10.
And the blowing air blown out from the blower outlet 52 cools or heats the surrounding space of the vehicle seat 10. And it is again attracted | sucked by the suction opening 54 and heat exchange by the heat exchanger 80 is performed similarly to the above. By repeating these series of operations, air in the surrounding space of the vehicle seat 10 is circulated and air-conditioned to adjust the temperature.

  According to these configurations, the configuration of the air conditioner 50 includes an air outlet 52 that blows out air, a suction port 54 that sucks in air that is blown out from the air outlet 52, and suction air that is sucked in from the suction port 54. Is configured to include a duct 70 that connects the air outlet 52 and the suction port 54 so that the air can be vented until the air is blown out from the air outlet 52 again, and a blower 60 disposed between the duct 70 from the suction port 54 to the air outlet 52. Yes. The air outlet 52 and the suction port 54 are formed in the bank portions 20 b and 30 b of either the seat cushion 30 or the seat back 20. The positions of the air outlets 52 and the suction ports 54 formed in the bank portions 20b and 30b are circulatable positions where the air blown from the air outlets 52 can be sucked into the suction ports 54. That is, the air outlet 52 and the suction port 54 formed in the bank portions 20b and 30b are formed in a portion that is not easily covered with the body of the seated person even when the seated person is seated. Therefore, the blown air blown out from the blowout port 52 can be sucked into the suction port 54 without being blocked by the seated person's body. Therefore, the air for air-conditioning the surrounding space of the vehicle seat 10 can be efficiently circulated to effectively adjust the temperature of the surrounding space of the vehicle seat 10.

  Further, as a configuration of the air conditioner 50, the duct 70 includes a heat exchanger 80 that heats or cools the suction air sucked from the suction port 54. As a result, the suction air sucked from the suction port 54 can be heated or cooled by the heat exchanger 80 while being blown through the duct 70 and blown out again at the blowout port 52. The temperature of the surrounding space can be effectively adjusted, and the air around the seat can be air-conditioned with less power by sucking and circulating the heated or cooled air once more.

  The arrangement configuration in which the blown air and the suction air can circulate is an arrangement configuration in which the direction of the blower 60 provided in the blowout port 52 and the suction port 54 is inward. As a result, the flow of the blown air blown from the blower outlet 52 and the flow of the sucked air sucked by the suction port 54 intersect with each other. Can be aspirated. Therefore, the air for air-conditioning the surrounding space of the vehicle seat 10 can be circulated more efficiently, and the temperature of the surrounding space of the vehicle seat 10 can be adjusted effectively.

  The air conditioner 50 is individually provided on the seat cushion 30 and the seat back 20. Therefore, since air can be circulated in each of the seat cushion 30 and the seat back 20, the temperature and the air volume of the seat cushion 30 and the seat back 20 can be individually set. Further, the air outlet 52 and the suction port 54 are formed side by side in the seat cushion 30 on the inner side and the outer side of the passenger compartment and the bank portion 20b of the seat back 20 as viewed in the positional relationship of the passenger compartment. This is formed in a portion that is not covered with the body of the seated person even when the seated person sits down. Therefore, the blown air blown out from the blowout port 52 can be sucked into the suction port 54 without being blocked by the seated person's body. Moreover, the air for air-conditioning the surrounding space of the vehicle seat 10 is configured to circulate in the width direction of the vehicle seat 10. In other words, this is a configuration that circulates in a direction transverse to the seated person's body. Therefore, the air for air-conditioning the surrounding space of the vehicle seat 10 can circulate without being blocked by the seated person's head or the like. Thereby, the air for air-conditioning the surrounding space of the vehicle seat 10 can be circulated efficiently, and the temperature adjustment of the surrounding space of the vehicle seat 10 can be performed effectively.

  Further, the air outlet 52 and the suction port 54 provided in the seat cushion 30 and the seat back 20 are arranged and formed on the same side portion side. Therefore, the air for air-conditioning the surrounding space of the vehicle seat 10 can circulate in the same direction of flow in the width direction of the vehicle seat 10 (direction transverse to the seated person's body). Thereby, it can be set as the structure which blows off cool air (warm air) from the direction (for example, arrange | positioning a blower outlet in the window side) where temperature change is remarkable by the external air outside a vehicle. Therefore, the air for air-conditioning the surrounding space of the vehicle seat 10 can be efficiently circulated to effectively adjust the temperature of the surrounding space of the vehicle seat 10.

Next, the configuration of the vehicle seat 10 according to the second embodiment will be described with reference to FIG. FIG. 6 is a perspective view illustrating a schematic configuration of the vehicle seat according to the second embodiment. In the second embodiment, the same reference numerals are given to the portions having substantially the same configuration and action as the vehicle seat 10 of the first embodiment, the description thereof is omitted, and the different portions will be described in detail.
As shown in FIG. 6, the second embodiment has the same configuration as the vehicle seat 10 shown in the first embodiment, but is different in the arrangement configuration of the air conditioner 50. That is, Example 2 is the structure by which the air conditioning apparatus 50 is each provided in the both sides of the vehicle seat 10. FIG. Specifically, air outlets 52 are disposed on the bank portions 20 b on both sides of the seat back 20, and suction ports 54 are disposed on the bank portions 30 b on both sides of the seat cushion 30. And the duct 70 which connects this blower outlet 52 and the suction opening 54 is between the back side in the seat pad 24 (refer FIG. 3 (A)) of the seat back 20, and the back board 28 (refer FIG. 3 (A)). It passes through and is disposed on the lower surface side of the seat pad (not shown) of the seat cushion 30. Then, both ends of the duct 70 are connected to the blower 60 (see FIG. 2) disposed at the outlet portion of the blower outlet 52 and the blower 60 (see FIG. 2) disposed at the inlet portion of the suction port 54. ing. In the second embodiment, the duct 70 is selected to be flexible such as a bellows duct. This is a configuration for enabling the vehicle seat 10 to follow the angular displacement of the seat when the seat back 20 stands up and falls with respect to the seat cushion 30 by the reclining device 40.

The operation of the vehicle seat 10 according to the second embodiment configured as described above is the same as the operation shown in the first embodiment.
According to these configurations, the temperature and the air volume can be individually set in each of the both side portions of the vehicle seat 10 (in other words, the left and right sides of the seated person). Thereby, the air for air-conditioning the surrounding space of the vehicle seat 10 can be circulated efficiently, and the temperature adjustment of the surrounding space of the vehicle seat 10 can be performed effectively.

The embodiment of the present invention has been described with reference to two examples. However, the vehicle seat of the present invention is not limited to the present embodiment, and various modifications, additions, and deletions are possible without departing from the scope of the present invention. Is possible.
For example, in the vehicle seat 10 of the present embodiment, the configuration including the seat back 20, the seat cushion 30, and the headrest 42 is shown. However, the present invention is not limited to this, and an armrest or the like may be added thereto.

Moreover, in the vehicle seat 10 in the present embodiment, the heat exchanger 80 of the air conditioner 50 is configured with the Peltier element 88. However, the heat exchanger is not limited to this, and various heat exchangers other than Peltier elements can be selected and applied.
Moreover, in the vehicle seat 10 in the present embodiment, the air conditioner 50 is shown as the one in which the heat exchanger 80 is configured. However, the present invention is not limited to this, and the air conditioner 50 may be configured without the heat exchanger 80. That is, the present invention can also be applied to a configuration in which the air in the surrounding space of the vehicle seat 10 is circulated by the blower 60.
In addition, in the vehicle seat 10 in the present embodiment, the configuration in which the blower 60 is disposed has been illustrated as being disposed in the outlet portion of the outlet 52 and the inlet portion of the suction port 54. However, the present invention is not limited to this, and the position where the blower 60 is disposed is only required to be disposed along a flow path through which air flows, and may be disposed in the middle of a duct, for example. Further, the blower 60 may have only one configuration or two or more configurations.
Moreover, in the vehicle seat 10 in the present embodiment, an axial fan is selected as the blower 60, but the blower provided in the vehicle seat according to the present invention is limited to this. Instead, a centrifugal fan may be selected.

Moreover, in the vehicle seat 10 according to the first embodiment, the air outlet 52 and the suction port 54 are illustrated as having a configuration in which they are arranged side by side in the seat width direction. However, without being limited thereto, for example, as a configuration without being arranged in the seat width direction, in the bank portion 20b of the seat back 20, the air outlet is disposed at a position corresponding to the shoulder portion of the seated person, The suction port 54 may be arranged at a position corresponding to the waist of the seated person.
Moreover, although the blower outlet 52 and the suction port 54 showed about a pair of structure, it is not limited to this, The number of the blower outlets 52 and the suction ports 54 may differ. For example, the structure etc. which provide three suction openings with respect to the structure where the blower outlet 52 is one may be sufficient.
Moreover, in the vehicle seat 10 according to the first embodiment, the configuration in which two air conditioners are arranged is shown, but the present invention is not limited to this, and a configuration in which one air conditioner is arranged may be used. Alternatively, a configuration in which two or more air conditioners are arranged may be used.
Alternatively, the duct may be branched and distributed to the single heat exchanger 80 by a plurality of outlets 52 and suction ports 54.

Moreover, in the vehicle seat 10 in the present embodiment, the arrangement configuration of the air outlet 52 and the suction port 54 is specified and shown. However, the present invention is not limited to this, and the blower outlet is provided by reversing the rotation direction of the blower 60 disposed at the outlet portion of the blower outlet 52 and the blower 60 disposed at the inlet portion of the suction port 54. 52, the arrangement of the suction port 54 can be reversed. For example, in the second embodiment, the air outlet 52 is provided in the bank portion 20 b of the seat back 20, and the suction port 54 is provided in the bank portion 30 b of the seat cushion 30. This configuration is effective because air cooled by the heat exchanger can be blown out from the seat back 20 side during cooling. On the other hand, during heating, it is more effective that the overheated air is blown from the seat cushion 30 side, not from the seat back 20 side. In such a case, the temperature of the surrounding space of the vehicle seat 10 can be more effectively adjusted by reversing the arrangement of the air outlet 52 and the suction port 54.
In such a case, the arrangement of the suction air introduction port 83a, the supply port 83b, and the discharge port 83c of the heat exchanger 80 must be reversed. For example, as illustrated in FIG. 4, it is conceivable that the arrangement configuration of the suction air introduction port 83 a, the supply port 83 b, and the discharge port 83 c is reversed by providing a switching valve 89.

  Further, in the vehicle seat 10 according to the present embodiment, the bank portions 20b and 30b are shown as not movable. However, the present invention is not limited thereto, and the configuration of the drawer-type bank portion or the movable bank portion is not limited thereto. It can also be applied to the configuration (movable side support). In such a case, it is conceivable to select a duct having stretchability and flexibility.

  Further, in the vehicle seat 10 according to the present embodiment, the structure in which the vent hole 58 is provided in the skin at the corresponding position of the air outlet 52 and the suction port 54 is shown, but air can be ventilated. If it exists, the thing of the structure which does not provide a vent hole may be sufficient.

In the vehicle seat 10 in the present embodiment,
As an arrangement configuration in which the direction of the blower 60 configured in the air conditioner 50 provided in the air outlet 52 and the suction port 54 is inward, the arrangement positions of the air outlet 52 and the suction port 54 are formed in directions facing each other. Shown about things. However, without being limited thereto, for example, as shown in FIG. 3B, if the arrangement configuration is such that the direction of the blower 60 is inward, the air outlet 52 and the suction port 54 are mutually FWD. The arrangement configuration may be inclined in the direction.

1 is a perspective view illustrating a schematic configuration of a vehicle seat according to a first embodiment. It is the perspective view which showed the attachment structure of the air conditioner in the vehicle seat which concerns on the present Example 1. FIG. FIG. 3 is a cross-sectional view of the vehicle seat according to the first embodiment taken along line III-III in FIG. 1. (A) The figure is sectional drawing which showed the flow of the blowing air and the flow of suction air in the blower outlet and suction port which are comprised as an air conditioner. (B) The figure is sectional drawing which showed the modification as an arrangement configuration which the direction of the air blower provided in the blower outlet and suction port comprised as an air conditioner turns inward. It is an expanded sectional view of the modification of the heat exchanger comprised in the air conditioner of the vehicle seat which concerns on the present Example 1. FIG. (A) The figure is an expanded sectional view showing what flows in the right direction (counterclockwise rotation direction in Drawing 3) on the figure on the flow of the heat exchanger constituted in an air-conditioner. (B) The figure is an expanded sectional view showing what the flow of the heat exchanger constituted in the air conditioner flows in the left direction (clockwise rotation in FIG. 3) on the drawing. It is the disassembled perspective view which expanded and showed the attachment part of the air conditioner of the vehicle seat which concerns on the present Example 1. FIG. It is the perspective view which showed schematic structure of the vehicle seat which concerns on the present Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle seat 20 Seat back 20a Top plate part 20b Bank part 22 Back frame 22a Upper frame 22b Side frame 22c Reinforcement member 22d Connecting shaft 22e Support spring member 24 Seat pad 26 Skin 28 Back board 30 Seat cushion 30a Top plate part 30b Bank Part 32 Cushion frame 33 Link mechanism 35 Slide rail 40 Reclining device 42 Headrest 50 Air conditioner 52 Air outlet 54 Suction port 56 Through hole 58 Ventilation hole 60 Blower 62 Bracket 70 Duct 80 Heat exchanger 82 Partition wall 83a Suction air inlet 83b Supply Port 83c Discharge port 84a First heat exchange channel 84b Second heat exchange channel 86 Heat sink 88 Peltier element 90 Controller FWD Front of vehicle seat UPR Vehicle Above the seat

Claims (6)

It has a seat cushion that serves as the seating surface for the seated person and a seat back that serves as the back for the seated person.
The outer shape of the seat cushion and the seat back on the side that supports the seated person is such that the central part that supports the seated person has a substantially flat top plate part, and both sides of the top board part that supports the side of the seated person A bank portion raised from the top plate portion, and a vehicle seat formed,
The vehicle seat is provided with an air conditioner for air-conditioning the surrounding space of the vehicle seat,
The configuration of the air conditioner includes a blowout port that blows out air, a suction port that sucks blown air blown out from the blowout port,
A duct connecting the air outlet and the suction port so that the suction air sucked from the suction port can be vented again from the air outlet,
It is composed of a blower disposed between the ducts from the suction port to the blowout port,
The air outlet and the suction port are formed in the bank portion of either the seat cushion or the seat back, and the positions of the air outlet and the suction port formed in the bank portion are blown out from the air outlet. A vehicle seat characterized in that it is a circulatable position where air can be sucked into a suction port. The vehicle seat according to claim 1,
As a configuration of an air conditioner, a vehicle seat characterized in that the duct has a heat exchanger for heating or cooling the suction air sucked from the suction port. In the vehicle seat according to claim 1 or 2,
The vehicle seat characterized in that the arrangement configuration in which the blown air and the suction air can circulate is an arrangement configuration in which a blower provided in the blowout port and the suction port is directed inward. In the vehicle seat according to any one of claims 1 to 3,
The air conditioner is provided in each of the seat cushion and the seat back,
The air outlet and the suction port are formed side by side in the seat cushion on the inner side and the outer side of the vehicle compartment and the bank portion of the seat back as seen in the vehicle interior positional relationship.
A vehicle seat characterized in that air can be circulated in each of a seat cushion and a seat back. The vehicle seat according to claim 4,
The vehicle seat, wherein the air outlet and the suction port are arranged and formed on the same side. In the vehicle seat according to any one of claims 1 to 3,
The air conditioner is provided on each side of the vehicle seat,
The air outlet is formed on the bank portion of either the seat cushion or the seat back, the suction port is formed on the other, and is arranged to be circulated between the seat cushion and the seat back. Vehicle seat to be used.

Images