JP2010089628A - Heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating device for heating the upper limbs by a vehicle seat. <P>SOLUTION: This heating device includes first heating means 5 disposed oppositely to a trunk part from the thigh parts of a human body in seat cushion 2 and seat back 3 of the seat 1, and second heating means 7 disposed oppositely to upper arm parts of the human body in side hold parts 6 of the seat back 3. The trunk part is heated by the first heating means, the upper arm parts from a shoulder part are heated by the second heating means 7 disposed in the side hold parts 6 of the seat back 3, and thereby a sense of warmth is improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heating device for a vehicle seat (vehicle seat).

As shown in FIG. 3, a heating apparatus is commercially available that warms the driver's body by disposing a planar heater 4 below the seat cushion 2 and seat back 3 of the vehicle seat 1 (for example, Patent Document 1). reference).
JP 2008-87716 A

  However, the above-described heating device only warms the trunk and cannot warm the upper limbs. This invention is made | formed in view of the said condition, and it aims at providing the heating apparatus which can improve a heating feeling by warming an upper limb.

  In order to solve the above-described conventional problems, a heating device according to the present invention includes a first heat generating unit disposed in a seat cushion of a vehicle seat and a seat back so as to be opposed to the trunk from the thigh of the human body. And a second heat generating means disposed opposite to the upper arm portion of the human body in the side hold portion of the seat back.

  In this heating apparatus, the trunk portion is warmed by the first heat generating means, and the upper arm portion is also warmed from the shoulder opening by the second heat generating means disposed in the side hold portion of the seat back, so that the heating feeling is improved.

  In the heating device of the present invention, the trunk is warmed by the first heat generating means, and the upper arm portion is also warmed from the shoulder opening by the second heat generating means disposed in the side hold portion of the seat back, so that the feeling of heating is improved.

  In a first aspect of the present invention, there is provided a first heat generating means disposed in a seat cushion and a seat back of a vehicle seat so as to face the trunk from a thigh of the human body, and a side hold portion of the seat back of the human body. A second heat generating means disposed opposite to the upper arm, the second heat generating means disposed on the side hold portion of the seat back and warming the trunk with the first heat generating means. As a result, the upper arm part is also warmed from the shoulder, thereby improving the feeling of heating.

  In the second invention, in particular, the second heat generating means of the first invention is provided by extending a part of the first heat generating means, and the first heat generating means and the second heat generating means are integrated. Therefore, the number of parts can be reduced and rationalization becomes possible.

  In the third invention, in particular, the heat generation amount per unit area of the second heat generating means in the first invention or the second invention is set larger than the heat generation amount per unit area of the first heat generating means. Thus, although the upper arm portion having a lower heat capacity than the trunk is easily cooled, the upper arm is set by setting the heat generation amount per unit area of the second heat generating means larger than the heat generation amount per unit area of the first heat generating means. The calorific value for heating a part can be raised and the feeling of heating of an upper arm part can further be improved.

  A fourth invention is a vehicle seat in which the heating device according to any one of claims 1 to 3 is disposed, and is formed so that the side hold portion protrudes to the side surface of the upper arm portion. Since the side hold part is shaped to wrap around the upper arm part, the upper arm part is heated more efficiently by the second heat generating means, and the feeling of heating is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIG.

  FIG. 1 is an external view of the heating device according to the first embodiment of the present invention. In the figure, a first heat generating means 5 comprising a planar heater is disposed under the outer surface of a seat cushion 2 and a seat back 3 of a vehicle seat (vehicle seat) 1 so as to face the thigh from the human body to the trunk. It is installed. A second heat generating means 7 is disposed in the side hold portion 6 of the seat back 3 so as to face the upper arm portion of the human body. The first heat generating means 5 and the second heat generating means 5 generate heat at a predetermined heat generation amount per unit area by supplying power from a vehicle battery. Here, the heat generation amount per unit area of the second heat generating means 7 is set larger than the heat generation amount per unit area of the first heat generating means 5. The second heat generating means 7 is formed by extending the first heat generating means 5 at the shoulder portion of the seat back 3, and the first heat generating means 5 and the second heat generating means 5 are supplied with power from the same power line. The

  The first heat generating means 5 and the second heat generating means 5 are a sheet heater formed by meandering electric heater wires on a non-woven fabric, a sheet heater formed from a polymer material having PTC characteristics, and the like. Is used.

  With the above configuration, the first heat generating means 5 warms the trunk, and the second heat generating means 7 disposed on the side hold part 6 of the seat back 3 also warms the upper arm part from the shoulder opening, thereby improving the feeling of heating. To do.

  Further, since the second heat generating means 7 is provided by extending a part of the first heat generating means 5 and the first heat generating means 5 and the second heat generating means 7 are integrated, the number of parts can be reduced. Rationalization is possible.

  Further, although the upper arm portion having a heat capacity lower than that of the trunk is easily cooled, the heat generation amount per unit area of the second heat generating means 7 is set larger than the heat generation amount per unit area of the first heat generating means 5. The amount of heat generated for heating the upper arm can be increased, and the heating feeling of the upper arm can be further improved.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG.

  FIG. 2 is an external view of the heating device according to the second embodiment of the present invention. The difference from the first embodiment is that a vehicle seat formed so that the side hold portion 6 protrudes to the body side surface of the upper arm portion as shown in FIG.

  With the above configuration, since the side hold portion is shaped to wrap around the upper arm portion, the upper arm portion is more efficiently heated by the second heat generating means, and the feeling of heating is improved.

In the above embodiment, the first heat generating means 5 and the second heat generating means 7 are integrated. For example, the second heat generating means 5 is provided between the first heat generating means 5 and the second heat generating means 7. A thermostat for detecting the temperature of the means 7 may be provided, and when the thermostat becomes a preset temperature or higher, the energization of the second heat generating means 7 may be stopped and only the first heat generating means 5 may be energized. Can be saved.

  Further, the first heat generating means 5 and the second heat generating means 7 may be configured independently and provided with a control means for controlling them. For example, while the total power consumption is constant, a short-term in the initial stage of heating. During the period, the upper arm is rapidly heated with the power distribution as the first heat generating means 5 <the second heat generating means 7, and then the trunk is warmed with the power distribution as the first heat generating means 5> the second heat generating means 7. As described above, by changing the power distribution to the first heat generating means 5 and the second heat generating means 7 with time, heating that achieves both energy saving and comfort is possible.

  In addition, as a heating system in a vehicle, a radiation heater is disposed on an interior panel of a foot or a ceiling, or a steering heater is added to constitute a whole body heating system by the heating device of the present invention, the radiation heater, and the steering heater. Alternatively, the foot or head that cannot be heated by the heating device of the present invention can be heated by the radiant heater, and the hand can be heated by the steering heater, further improving the feeling of heating.

  As described above, the present embodiment mainly assumes use in winter, but may be used as a measure for cooling in summer. In this case, a cooling mode switch is provided, and in the cooling mode, if the configuration is such that the energization of the heat generating means is reduced and the temperature of the contact portion is lowered, it can be used comfortably without being too hot during use. .

  As described above, the heating device according to the present invention can be applied to various heating in various seats such as automobiles, ordinary houses, offices, airplanes, theaters, outdoor watching places, outdoor work places, and the like.

External view of the heating device in the first embodiment of the present invention External view of the heating device in the second embodiment of the present invention External view of conventional heating system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat cushion 3 Seat back 5 1st heat generating means 6 Side support part 7 2nd heat generating means

Claims (4)

A first heat generating means disposed in the seat cushion and the seat back of the vehicle seat facing the trunk from the thigh of the human body; and the upper arm portion of the human body facing the upper arm portion in the side hold portion of the seat back. A heating device comprising a second heat generating means disposed. The heating device according to claim 1, wherein the second heat generating means is provided by extending a part of the first heat generating means. The heating device according to claim 1 or 2, wherein the heat generation amount per unit area of the second heat generation means is set larger than the heat generation amount per unit area of the first heat generation means. The vehicle seat which arrange | positions the heating apparatus of any one of Claims 1-3, and was shape | molded so that a side hold part might protrude to the body side surface of an upper arm part.

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