JP2003252036A - Fan type temperature regulation sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve appearance as a temperature regulating seat without increasing costs and lowering assembling ability due to the increase of the number of parts and the occurrence of a trouble that an adverse influence is exercised on temperature regulation operation on a seating person from a seat back by an exhaust heat from a temperature regulating unit. <P>SOLUTION: In a fan type temperature regulating seat, the temperature regulating unit 5 provided with a Peltier element 3 and a air flow fan 4 is coupled to the inner surface of a seat back board 11. A suction port 11A to the temperature regulating unit 5 and a discharge port 11C are formed in the seat back board 11 and an exhaust duct 13 running from an exhaust passage 5B of the temperature regulation unit 5 to an discharge port 11C is integrally equipped. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower type temperature control seat having a seat back equipped with a temperature control unit having a Peltier element and a blower fan.

[0002]

2. Description of the Related Art In the above temperature control sheet, temperature control air from a temperature control unit equipped in the seat back comes out from the surface of the seat back through a plurality of ventilation passages formed in a seat pad. Therefore, it becomes possible to give the seated person a comfortable feeling due to the temperature control effect from the seat back.

Further, the temperature control unit uses a lightweight and thin plate-shaped Peltier element that operates stably even at a low DC voltage and can easily switch cooling and heating by switching the energizing direction from the DC power source. It is possible to reduce the size and weight of the unit and save power.

By the way, conventionally, in the above-mentioned temperature control sheet, it has been generally considered to equip the temperature control unit with the temperature control unit exposed on the back side of the seat back.

[0005]

According to the above-mentioned prior art, since the temperature control unit is exposed, the appearance as a temperature control sheet is deteriorated, and in order to improve the appearance, it is simpler. When the temperature control unit is connected to the inner surface of the seat back board so as to be hidden in the seat back, the exhaust heat generated by using the Peltier element is hidden in the seat back and the seat back for the seated person There is a risk of causing a problem that adversely affects the temperature control action.To eliminate this risk, prepare an exhaust duct that can be installed in the seat back, and use the exhaust duct to exhaust heat from the temperature control unit to the seat back. Since it has to be arranged in a state of being guided to the outside and discharged, the cost increases and the assemblability deteriorates due to an increase in the number of parts.

The object of the present invention is to increase the cost due to an increase in the number of parts, the assemblability, and the disadvantage that the heat exhausted from the temperature control unit adversely affects the temperature control action from the seat back to the seated person. The purpose is to improve the appearance of the temperature control sheet.

[0007]

[Means for Solving the Problems] [Structure] In order to achieve the above object, in the invention according to claim 1 of the present invention,
A temperature control unit including a Peltier element and a blower fan is connected to the inner surface of the seat back board, and an intake port and an exhaust port for the temperature control unit are formed on the seat back board, and an exhaust passage of the temperature control unit is provided. An exhaust duct extending over the exhaust port was integrated.

[Operation] According to the invention described in claim 1, the exhaust duct of the temperature control unit and the exhaust port of the seat back board can be connected to each other only by connecting the temperature control unit to the inner surface of the seat back board. Can be connected through
By connecting the seat back board to the seat back frame, the temperature control unit can be installed in the seat back.When the temperature control unit is operating, the exhaust heat from the temperature control unit's exhaust passage passes through the exhaust duct. Since the heat is discharged from the exhaust port to the outside of the seat back, the heat exhausted from the temperature control unit may be hidden inside the seat back, adversely affecting the temperature control action of the seat back on the seated person. You will be able to avoid it.

[Effects] Therefore, while ensuring a comfortable habitability due to the temperature control effect from the seat back, without increasing the cost and lowering the assembling property due to the increase in the number of parts,
It has become possible to improve the appearance as a temperature control sheet.

[Structure] In the invention according to claim 2 of the present invention, in the invention according to claim 1, the exhaust port is formed at a lower end portion of the seat back board.

[Operation] According to the invention described in claim 2, when the temperature control unit is in operation, exhaust heat from the exhaust passage of the temperature control unit passes through the exhaust duct and is formed in the lower end portion of the seat back board. Since the heat will be discharged from the mouth to the outside of the seat back, when the seats are installed behind the temperature control seat, the heat exhausted from the temperature control unit can be released to the feet of the seated person in the rear seat. Therefore, it is possible to avoid the possibility that the seated person on the rear seat may feel uncomfortable due to the exhaust heat.

[Effect] Therefore, comfortable habitability can be ensured even for a seated person on the rear seat.

[0013]

1 to 4 show a temperature control seat mounted on a passenger car. This temperature control seat connects a seat back 2 to a seat cushion 1 installed on a vehicle floor, and The seat back 2 is equipped with a temperature control unit 5 having a Peltier element 3 and an electric blower fan 4.

The seat back 2 has a seat back pad 7 formed on the front surface side of a seat back frame 6 in which a ventilation groove 7A for guiding the temperature control air from the temperature control unit 5 and a plurality of ventilation holes 7B are formed. , While covering the surface of the seat back pad 7 with a highly breathable seat back skin 8.
A seat back board 11 that closes the blower groove 7A on the back surface with a groove cover 9 made of resin and closes a space 10 formed on the back surface side of the seat back pad 7 in the seat back frame 6.
It is configured by connecting.

The temperature control unit 5 includes a Peltier element 3 arranged between the air supply passage 5A and the exhaust passage 5B, and heat sinks 12 provided on both sides of the Peltier element 3 on the air supply passage 5A side and the exhaust passage 5B side. From the above, it is configured to absorb heat and radiate air blown from the blower fan 4, and by switching the energizing direction of the DC power source to the Peltier element 3 by a changeover switch (not shown), the heat absorbing side and the heat radiating side of the Peltier element 3 And the air supply passage 5A and the exhaust passage 5B are connected to the inner surface of the seat back board 11 in a state of being connected to an intake port 11A formed at substantially the center of the seat back board 11. With the connection of the seat back board 11 to the seat back frame 6, the air supply passage 5
A is connected to the air blowing groove 7A of the seat back pad 7 through the air supply hole 9A formed in the groove cover 9.

The seat back board 11 is made of resin, and a pair of left and right hooks 11B integrally formed on the inner surface of the upper portion of the seat back board 11 are engaged with the support rods 6A of the seat back frame 6, and the bottom portion thereof is the bottom frame 6B of the seat back frame 6. The seat back frame 6 can be fixed to the seat back frame 6 with screws. Further, the inner surface of the seat back board 11 is integrally equipped with an exhaust duct 13 extending from the exhaust path 5B of the temperature control unit 5 to an exhaust port 11C formed at the lower end of the seat back board 11, and the exhaust duct 13 is equipped with an exhaust duct. The pair of left and right ribs 11D integrally formed on the inner surface of the seat backboard 11 in a state of extending from both left and right sides of the mouth 11C toward the upper intake port 11A, the ribs 11D
It is formed by adhering a lid 14 made of resin in a U-shape in cross section.

With this configuration, by simply connecting the temperature control unit 5 to the inner surface of the seat back board 11, the exhaust passage 5B of the temperature control unit 5 and the exhaust port 11 of the seat back board 11 are connected.
C can be connected via the exhaust duct 13, and by simply connecting the seat back board 11 to the seat back frame 6, the temperature control unit 5 and its air supply passage 5A can be connected to the air blow groove of the seat back pad 7. It can be installed in the seat back 2 while being connected to 7A.

When the temperature inside the vehicle is high, the temperature is adjusted by operating the changeover switch so that the air supply passage 5A side of the Peltier element 3 is changed to the heat absorption side and the exhaust passage 5B side is changed to the heat radiation side. The cold air that is absorbed by the Peltier element 3 and is blown by the blower fan 4 along with the operation of the unit 5 is blown by the blower groove 7A of the seat back pad 7 and each blower hole 7B.
It comes out from the seat back skin 8 through the
Further, the warm air heated by the Peltier element 3 and blown by the blower fan 4 is exhausted from the exhaust port 11C of the seat back board 11 to the outside of the seat back 2 through the exhaust duct 13, resulting in the seat back. It becomes possible to give a seated person a feeling of comfort by the cooling action from 2.

When the temperature inside the vehicle is low, the temperature is adjusted by operating the changeover switch so that the air supply passage 5A side of the Peltier element 3 is switched to the heat radiation side and the exhaust passage 5B side is the heat absorption side. With the operation of the unit 5, the warm air heated by the Peltier element 3 and blown by the blower fan 4 is blown out from the seatback skin 8 through the blower groove 7A of the seatback pad 7 and each blower hole 7B. Further, the cool air that is absorbed by the Peltier element 3 and is blown by the blower fan 4 is exhausted from the exhaust port 11C of the seat back board 11 to the outside of the seat back 2 through the exhaust duct 13, resulting in the seat back. It becomes possible to give the seated person a feeling of comfort due to the heating effect from 2.

In other words, it is possible to improve the appearance as a temperature control seat while ensuring a comfortable habitability by the temperature control action from the seat back 2 without inviting the cost increase and the assembling performance due to the increase in the number of parts. It is like this.
Also, the heat exhausted from the temperature control unit 5 is the seat back board 1
Since the air is discharged from the exhaust port 11C formed at the lower end of the temperature control sheet 1, when the seats are juxtaposed behind the temperature control seat, the exhaust heat from the temperature control unit 5 is discharged to the seated person behind the seat. The heat can be released to the feet, and it is possible to avoid the possibility that the seat occupant of the rear seat will feel uncomfortable due to the exhaust heat.

[Other Embodiments] Other embodiments of the present invention will be listed below. (1) The temperature control unit 5 may be configured so that the Peltier device 3 is used for either cooling or heating. (2) The exhaust duct 13 may be integrally mounted on the seat back board 11 by adhering a lid 14 having a U-shaped cross section to the inner surface of the seat back board 11.
Further, the exhaust duct 13 may be formed integrally with the seat back board 11.

[Brief description of drawings]

FIG. 1 is a perspective view of a temperature control sheet.

FIG. 2 is a vertical sectional side view of a seat back.

[Figure 3] Rear view of the seat back

FIG. 4 is a transverse plan view of the seat back.

[Explanation of symbols]

3 Peltier element 4 Blower fan 5 Temperature control unit 5B exhaust path 11 seat back board 11A intake port 11C exhaust port 13 exhaust duct

Claims (2)

[Claims] 1. A temperature control unit including a Peltier element and a blower fan is connected to an inner surface of a seat back board, and an intake port and an exhaust port for the temperature control unit are formed in the seat back board, and the temperature control unit is also provided. A ventilation type temperature control seat that is integrally equipped with an exhaust duct extending from the exhaust path of the unit to the exhaust port. 2. The ventilation type temperature control seat according to claim 1, wherein the exhaust port is formed in a lower end portion of the seat back board.