JP2018065433A - Vehicular heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular heating device capable of effectively using radiant heat radiated from a radiation heater and thus contributing to power saving during heating operation.SOLUTION: A vehicular heating device 1 includes: a radiation heater having an armrest heater 10A and a rear heater; and a seat air-conditioning device 20. The armrest heater 10A includes: a radiation body 11 emitting radiant heat RH; and a radiant heat recovery member 15 disposed on a second surface side of the radiation body 11 and constituted by a material having high thermal conductivity. The armrest heater 10A is disposed to make the radiant heat recovery member 15 come into contact with a side surface on a seating surface 51 side of an armrest duct 22 of a front side seat. The radiant heat RH from a first surface side of the armrest heater 10A warms a portion around legs of an occupant seated on the front side seat. The radiant heat RH on a second surface side of the armrest heater 10A is recovered by the radiant heat recovery member 15, is transmitted to blowing air B blown in the armrest duct 22 and is used for heating inside of a cabin.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle heating apparatus having a radiant heater for heating a vehicle interior by radiant heat.

  2. Description of the Related Art Conventionally, a vehicle heating apparatus using a radiant heater having a radiant body is known, and an occupant is heated by radiant heat radiated from the radiant body. The invention described in Patent Document 1 is known as an invention related to a vehicle heating device using such a radiation heater.

  In the automotive heating device described in Patent Document 1, the radiant heater is disposed on the front side of the seat surface of the vehicle seat, and is configured to heat the occupant's legs seated on the seat by the radiant heat of the radiant heater. Has been.

JP 2011-11610 A

  In the heating apparatus for automobiles described in Patent Document 1, the occupant is heated by using only the radiant heat on the side facing the occupant's legs among the radiant heat radiated from the radiant body of the radiant heater. In other words, in the automotive heating device described in Patent Document 1, the radiant heat radiated from the other surface side of the radiant body is effectively utilized even though it has the same amount of heat as the passenger side. There is no waste heat.

  On the other hand, in these heating devices for automobiles, improvement of heating efficiency with respect to energy consumption is desired. That is, the vehicle heating device described in Patent Document 1 has room for improvement in terms of radiant heat that is wasted by the radiant heater in consideration of improvement in heating efficiency with respect to energy consumption.

  The present invention has been made in view of these points, and an object of the present invention is to provide a vehicle heating apparatus that can effectively use radiant heat radiated from a radiant heater and contribute to power saving during heating operation.

In order to achieve the object, the vehicle heating device according to claim 1,
A first surface (12) that includes a radiant body (11) that emits radiant heat (RH) for heating the vehicle interior, the radiant heat from the radiant body being radiated to a heating target in the vehicle interior, and a first surface different A radiant heater (10) having two sides (13);
A radiant heat recovery member (15) disposed on the second surface side of the radiant heater for recovering radiant heat radiated from the second surface side of the radiant heater and transmitting the radiant heat for heating in the passenger compartment.

  Thereby, according to this vehicle heating device, the second surface of the radiant heater not only warms the heating target in the vehicle interior by the radiant heat radiated from the first surface of the radiant heater but also collects it through the radiant heat recovery member. Radiant heat from the side can be used for heating the passenger compartment. That is, according to this vehicle heating apparatus, the radiant heat on the second surface side, which has been wasted, can be used for heating the vehicle interior in the same manner as the radiant heat on the first surface side. It can contribute to motorization.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in the embodiment described later.

It is a side view showing the composition of the heating device for vehicles concerning a 1st embodiment. It is a front view which shows the structure of the heating apparatus for vehicles which concerns on 1st Embodiment. It is a perspective view which shows the structure of the radiation heater which concerns on 1st Embodiment. It is explanatory drawing regarding the heat recovery of the armrest heater which concerns on 1st Embodiment. It is explanatory drawing regarding the heat recovery of the rear heater which concerns on 1st Embodiment. It is a side view which shows the structure of the heating apparatus for vehicles which concerns on 2nd Embodiment. It is explanatory drawing regarding the heat recovery of the rear heater which concerns on 2nd Embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
A vehicle heating apparatus according to the present invention will be described in detail with reference to the drawings based on an embodiment applied to a vehicle in which a front seat 50F and a rear seat 50R are arranged in a passenger compartment C. As shown in FIGS. 1 and 2, the front seat 50F is disposed in the front portion of the passenger compartment C, and the rear seat 50R is disposed behind the front seat 50F.

  The front seat 50F includes a seat surface 51 on which the occupant sits down, a backrest 52 erected along the rear end of the seat surface 51, and a pair of erections along both left and right ends of the seat surface 51. An armrest 53 is provided. The rear seat 50R basically has the same configuration as the front seat 50F except that the rear seat 50R does not have a pair of armrests 53.

  As shown in FIGS. 1 to 5, the vehicle heating apparatus 1 according to the first embodiment is disposed in the front seat 50 </ b> F, and is formed inside the front seat 50 </ b> F and a plurality of radiation heaters 10 that warm the occupant with radiant heat RH. And a seat air conditioner 20 capable of blowing warm air (ie, blown air B) through the blower duct.

  In the vehicle heating apparatus 1 according to the first embodiment, as the radiation heater 10, an armrest heater 10A and a rear heater 10B are arranged with respect to the front seat 50F. The armrest heater 10A is disposed on each of the pair of armrests 53 in the front seat 50F, and mainly warms the occupant's legs seated on the front seat 50F by the radiant heat RH. The rear heater 10B is disposed on the rear surface of the backrest 52 in the front seat 50F, and mainly warms the legs of the occupant sitting on the rear seat 50R by the radiant heat RH.

  Here, the configuration of the radiation heater 10 used in the vehicle heating apparatus 1 will be described in detail with reference to FIG. In FIG. 3, the nichrome wire 11 </ b> A in the radiator 11 is indicated by a broken line and the protective cover 14 is indicated by a one-dot chain line so that the configuration of each part can be easily understood.

  As shown in FIG. 3, the radiant heater 10 (that is, the armrest heater 10 </ b> A and the rear heater 10 </ b> B) according to the first embodiment includes a radiant body 11, a protective cover 14, and a radiant heat recovery member 15. ing. The radiant heater 10 is started when a sufficient heat source for heating the vehicle interior cannot be obtained, such as when the engine is started. As shown in FIGS. 4 and 5, the radiant heat RH immediately activates the area around the occupant's legs. Used as an auxiliary heating device for heating.

  In the following description, the surface facing the heating target (for example, an occupant) in the passenger compartment C when arranged as the radiant heater 10 is referred to as “first surface 12”, and the back surface thereof is referred to as “second surface 13. It is defined and explained. Here, the second surface in the present invention includes not only the back side of the surface facing the heating target in the passenger compartment (that is, the first surface) but also other surfaces different from the first surface (for example, the first surface and its surface). Also included are side surfaces, etc., arranged to connect the back side surfaces.

  The radiator 11 is provided with a Nichrome wire 11A, which is an energization heating element that generates heat when energized, and is supplied with power from a battery mounted on the vehicle via an operation switch. It is configured as follows. Therefore, the radiator 11 functions as a heat source that generates radiant heat for heating the passenger compartment C.

  The radiator 11 has PTC characteristics on the first surface 12 side. Since the electric resistance value increases with the temperature rise of the radiator 11 itself due to the PTC characteristic, the current is suppressed, so that the radiator 11 can suppress heat generation within a predetermined temperature range. Therefore, the radiant heater 10 can maintain a comfortable temperature without excessively increasing the temperature on the first surface 12 side without installing a temperature sensor.

  The protective cover 14 constitutes a portion corresponding to the heating target side of the radiant heater 10 and is disposed so as to cover the entire first surface 12 of the radiant body 11. The protective cover 14 prevents the occupant's body from directly contacting the first surface 12 of the radiator 11.

  The radiant heat recovery member 15 constitutes other parts except the surface on which the protective cover 14 is disposed, and is disposed so as to cover at least the second surface 13 of the radiant body 11. In FIG. 3, the radiant heat recovery member 15 is arranged so as to cover only the second surface 13 of the radiator 11 over the entire surface, but along each edge on the second surface 13 side of the radiator 11. You may arrange | position so that the standing side surface may each be covered.

  The radiant heat recovery member 15 is formed in a substantially plate shape by a material having high thermal conductivity (for example, a composite material of graphite and copper or aluminum), and is disposed so as to cover the second surface 13 of the radiator 11. ing. Therefore, the radiant heat recovery member 15 can recover the radiant heat RH radiated from the second surface 13 side of the radiator 11.

  And the radiant heat recovery member 15 of the armrest heater 10A and the rear heater 10B according to the first embodiment is arranged so as to be in contact with the side surface of the armrest duct 22 and the side surface of the rear duct 24 described later. Therefore, the radiant heat recovery member 15 according to the first embodiment can transmit the recovered radiant heat RH from the second surface 13 side of the radiator 11 to the armrest duct 22 or the rear duct 24.

  Next, the configuration of the seat air conditioner 20 used in the vehicle heating device 1 according to the first embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, the seat air conditioner 20 is disposed below the seat surface 51 in the front seat 50 </ b> F, and includes a compressor, a condenser as a heat exchanger through which refrigerant from the compressor flows, and evaporation. The refrigeration cycle apparatus includes decompression means such as a vessel and an expansion valve.

  The seat air-conditioning device 20 is a single unit that is configured as a compressor or the like constituting the refrigeration cycle device. By switching the refrigerant flow in the refrigeration cycle, the seat air conditioning device 20 has a heating function, a cooling function, and a dehumidifying heating function. Demonstrate. The seat air conditioner 20 blows out the blast air B air-conditioned by the refrigeration cycle device through a blower duct (for example, an armrest duct 22 described later) formed inside the front seat 50F, so that the passenger compartment C The comfort of the passengers inside can be increased.

  Here, the configuration of the air duct formed inside the front seat 50F will be described with reference to the drawings. As shown in FIGS. 1 and 2, the air duct according to the first embodiment includes a chamber box 21, a pair of armrest ducts 22, and a rear duct 24.

  The chamber box 21 is disposed above the seat air conditioner 20 below the seat surface 51 of the front seat 50F. The chamber box 21 is connected to an air-conditioning air outlet (not shown) of the seat air conditioner 20 and blown air B (that is, air-conditioned air) air-conditioned by the seat air-conditioner 20 is blown into the chamber box 21.

  As shown in FIGS. 1 and 2, the armrest duct 22 is formed inside the armrest 53 in the front seat 50 </ b> F. Specifically, the armrest duct 22 extends along the surface of the armrest 53 of the front seat 50F on the seat surface 51 side (that is, the occupant side sitting on the front seat 50F).

  And the lower end part of the armrest duct 22 is connected to the chamber box 21, and the upper end part of the armrest duct 22 is connected to the air outlet 23 arranged on the seat surface 51 side in the upper part of the armrest 53 of the front seat 50F. Has been. Accordingly, a part of the blown air B blown out from the seat air conditioner 20 flows into the armrest ducts 22 via the chamber boxes 21 and blown out from the blowout ports 23.

  As shown in FIG. 2 and the like, since the air outlets 23 are arranged in the armrests 53 so as to face the passengers of the front seats 50F, the seat air conditioner 20 transmits the conditioned air B to the front side. The air can be blown toward the occupant sitting on the seat 50F, and the comfort of the occupant can be enhanced.

  The rear duct 24 is formed inside a backrest 52 in the front seat 50 </ b> F, and extends along the rear side surface of the backrest 52. One end of the rear duct 24 is connected to the chamber box 21 below the seat surface 51, and the other end of the rear duct 24 is connected to a plurality of rear outlets 25 arranged on the surface side of the backrest 52.

  Thereby, a part of the blown air B blown out from the seat air conditioner 20 flows into the rear duct 24 via the chamber box 21 and is blown out from the plurality of rear outlets 25. Accordingly, the seat air conditioner 20 can blow out the conditioned air B toward the passenger sitting on the front seat 50F via the plurality of rear outlets 25, and can increase the comfort of the passenger. .

  Next, the recovery of the radiant heat RH from the second surface 13 side of the radiant heater 10 in the vehicle heating apparatus 1 according to the first embodiment and the method of using the recovered radiant heat RH will be described in detail with reference to the drawings. .

  First, recovery of the radiant heat RH from the second surface 13 side in the armrest heater 10A and a method for utilizing the recovered radiant heat RH will be described with reference to the drawings. 4 shows the configuration of the right armrest heater 10A, the armrest 53, and the like in the front seat 50F, the same configuration is applied to the left side in the front seat 50F. Therefore, the description regarding the left armrest 53 and the like is omitted.

  As shown in FIGS. 2 and 4, the armrest heater 10 </ b> A is disposed on the seat surface 51 side of the armrest 53. Since the armrest heater 10A is arranged so that the first surface 12 faces the seat surface 51 side of the front seat 50F, the radiant heat RH from the first surface 12 side of the armrest heater 10A is seated on the front seat 50F. Radiated toward the occupant. This arm heater 10A can perform immediate heating around the legs of the occupant sitting on the front seat 50F by the radiant heat RH from the first surface 12 side of each arm heater 10A.

  At this time, the radiant heat recovery member 15 of each armrest heater 10 </ b> A is in contact with the side surface of the armrest duct 22 on the seat surface 51 side. As described above, since the radiant heat recovery member 15 is disposed so as to cover the second surface 13 side of the armrest heater 10A, the radiant heat RH radiated from the second surface 13 side can be recovered. The radiant heat RH recovered by the radiant heat recovery member 15 is transmitted to the blown air B flowing in the armrest duct 22 through the side surface of the armrest duct 22 that is in contact with the radiant heat recovery member 15.

  Therefore, according to the vehicle heating device 1 according to the first embodiment, when the air is blown out and heated around the legs of the occupant sitting on the front seat 50F, the radiant heat from the first surface 12 side of each armrest heater 10A. Simultaneously with the heating by the RH, the blown air B (that is, warm air) warmed by the seat air conditioner 20 is blown out from the armrest duct 22 and the air outlet 23 so that the air can be heated.

  And according to the heating apparatus 1 for vehicles, from the 2nd surface 13 side of 10 A of armrest heaters 10A conventionally waste heat with respect to the ventilation air B (namely, warm air) warmed by the seat air conditioner 20 The radiant heat RH can be recovered and transmitted by the radiant heat recovery member 15. Thereby, according to the vehicle heating device 1, the blown air B blown into each armrest duct 22 from the seat air conditioner 20 can be heated by the radiant heat RH from the second surface 13 of the armrest heater 10A. It is possible to reduce the power consumption of the seat air conditioner 20 when the room C is heated.

  Next, recovery of the radiant heat RH from the second surface 13 side in the rear heater 10B according to the first embodiment and a method for utilizing the recovered radiant heat RH will be described with reference to the drawings.

  As shown in FIG. 5, the rear heater 10 </ b> B is disposed on the rear side of the backrest 52. Since the rear heater 10B is disposed such that the first surface 12 faces the rear seat 50R, the radiant heat RH on the first surface 12 side of the rear heater 10B is a passenger sitting on the rear seat 50R. Radiated towards The rear heater 10B can perform immediate heating around the legs of the passenger sitting on the rear seat 50R by the radiant heat RH from the first surface 12 side of the rear heater 10B.

  The radiant heat recovery member 15 of the rear heater 10B is in contact with the rear surface of the rear duct 24 of the front seat 50F. As described above, since the radiant heat recovery member 15 is disposed so as to cover the second surface 13 side of the rear heater 10B, the radiant heat RH radiated from the second surface 13 side can be recovered. The radiant heat RH recovered by the radiant heat recovery member 15 is transmitted to the blown air B flowing in the rear duct 24 through the side surface of the rear duct 24 that is in contact with the radiant heat recovery member 15.

  Therefore, according to the vehicle heating device 1 according to the first embodiment, the radiant heat RH from the first surface 12 side of the rear heater 10B is radiated to the periphery of the legs of the occupant sitting in the rear seat 50R. And simultaneously heating the occupant sitting in the front seat 50F by blowing the air B (that is, warm air) warmed by the seat air conditioner 20 from the plurality of rear air outlets 25. Can do.

  And according to the vehicle heating device 1, from the second surface 13 side of the rear heater 10B, which has conventionally been waste heat, with respect to the blown air B (that is, warm air) warmed by the seat air conditioner 20. The radiant heat RH can be recovered and transmitted by the radiant heat recovery member 15. Thereby, according to the heating apparatus 1 for vehicles, the power consumption of the seat air conditioner 20 in the case of heating the inside of the passenger compartment C can be reduced, and it can contribute to the power saving as the heating apparatus 1 for vehicles.

  Further, according to the vehicle heating device 1, a part of the radiant heat RH generated for heating the passenger in the rear seat 50R (that is, the radiant heat RH from the second surface 13 side of the rear heater 10B) is transferred to the front side. Since it can be used for heating the passenger sitting in the seat 50F, the radiant heat RH can be effectively utilized without wasting it.

  As described above, the vehicle heating apparatus 1 according to the first embodiment includes the radiation heater 10 including the armrest heater 10 </ b> A and the rear heater 10 </ b> B, and the seat air conditioner 20. As shown in FIG. 3, the armrest heater 10 </ b> A and the rear heater 10 </ b> B as the radiant heater 10 include a radiant body 11 that emits radiant heat RH, and the second surface 13 side of the radiant body 11 has high thermal conductivity. The radiant heat recovery member 15 is made of a material (for example, a composite material of graphite and copper or aluminum).

  Thereby, according to the heating apparatus 1 for vehicles which concerns on 1st Embodiment, by the radiant heat RH radiated | emitted from the 1st surface 12 of the radiant heater 10, the heating object (for example, passenger | crew of the front seat 50F, etc. In addition to warming the occupant of the rear seat 50R), the radiant heat RH from the second surface 13 side of the radiant heater 10 is recovered through the radiant heat recovery member 15 made of a high thermal conductivity material, and the passenger compartment C It can be used for heating inside. That is, according to the vehicle heating device 1, the radiant heat RH on the second surface 13 side, which has been waste heat, can also be used for heating the passenger compartment C in the same manner as the radiant heat RH on the first surface 12 side. Therefore, it can contribute to the power saving of the vehicle interior heating.

  And the seat air conditioner 20 which comprises this vehicle heating apparatus 1 can ventilate the warm ventilation air B via the armrest duct 22, the rear duct 24, etc., as shown in FIG.4, FIG.5. The interior of the passenger compartment C can be heated by warm air.

  The armrest heater 10A is disposed on the seat surface 51 side of the armrest 53 of the front seat 50F, and the first surface 12 thereof is disposed to face the seat surface 51 side. The radiant heat recovery member 15 of the armrest heater 10 </ b> A is disposed so as to contact the surface on the seat surface 51 side in the armrest duct 22 formed in the armrest 53.

  Therefore, the radiant heat RH from the second surface 13 side of the armrest heater 10 </ b> A is recovered by the radiant heat recovery member 15 and transmitted to the blown air B blown through the armrest duct 22. As a result, the blown air B blown through the armrest duct 22 is further warmed by the radiant heat RH on the second surface 13 side that has been waste heat from the state heated by the seat air conditioner 20. That is, according to the vehicle heating device 1 according to the first embodiment, the power consumption of the seat air-conditioning device 20 when the passenger compartment C is heated can be reduced, and the power saving as the vehicle heating device 1 can be reduced. Can contribute.

  The rear heater 10B is disposed on the rear surface side of the backrest 52 of the front seat 50F, and the first surface 12 is disposed so as to face the rear seat 50R side. Therefore, the vehicle heating device 1 according to the first embodiment can warm the occupant of the rear seat 50R by the radiant heat RH from the first surface 12 side of the rear heater 10B.

  As shown in FIG. 5, the radiant heat recovery member 15 of the rear heater 10 </ b> B is disposed so as to contact the rear surface of the rear duct 24 formed in the backrest 52. Therefore, the radiant heat RH from the second surface 13 side of the rear heater 10 </ b> B is recovered by the radiant heat recovery member 15 and transmitted to the blown air B blown through the rear duct 24. As a result, the blown air B blown through the rear duct 24 is further warmed by the radiant heat RH on the second surface 13 side that has been conventionally waste heat from the state heated by the seat air conditioner 20.

  That is, according to the vehicle heating device 1 according to the first embodiment, the front seat 50F is heated by effectively utilizing the radiant heat RH on the second surface 13 side in the rear heater 10B for heating the rear seat 50R side. Therefore, the power consumption of the seat air-conditioning apparatus 20 can be reduced, which contributes to power saving as the vehicle heating apparatus 1.

(Second Embodiment)
Next, a second embodiment different from the first embodiment described above will be described with reference to the drawings. The vehicle heating device 1 according to the second embodiment is applied to a vehicle in which a front seat 50F and a rear seat 50R are arranged in a passenger compartment C, as in the first embodiment. And in the following description, the same code | symbol as 1st Embodiment shows the same structure, Comprising: The previous description is referred.

  As shown in FIG. 6, the vehicle heating apparatus 1 according to the second embodiment includes a rear heater 10 </ b> B as a radiant heater 10 and an auxiliary heater 30. That is, the vehicular heating apparatus 1 according to the second embodiment has the configuration in that it does not include the seat air conditioner 20 and the air duct (that is, the armrest duct 22, the rear duct 24, etc.) in the first embodiment. It is different. Further, the front seat 50F according to the second embodiment is configured by a seat surface 51 and a backrest 52, and is different from the first embodiment in that it does not have a pair of armrests 53.

  The rear heater 10B according to the second embodiment is disposed as the radiant heater 10 of the vehicle heating device 1 according to the second embodiment, and similarly to the first embodiment, the radiator 11, the protective cover 14, And a radiant heat recovery member 15. The rear heater 10B is arranged on the rear surface of the backrest 52 in the front seat 50F so that the first surface 12 faces the rear seat 50R. Therefore, the vehicle heating device 1 according to the second embodiment can warm the occupant of the rear seat 50R by the radiant heat RH from the first surface 12 side of the rear heater 10B.

  And the vehicle heating apparatus 1 which concerns on 2nd Embodiment has the auxiliary heater 30 as mentioned above. The auxiliary heater 30 includes a heat conductive sheet 31 and a buffer material 32. The heat conductive sheet 31 is formed in a sheet shape from a material having high thermal conductivity, and is disposed on the front side of the backrest 52 in the front seat 50F. The cushioning material 32 is disposed between the surface of the backrest 52 and the heat conductive sheet 31, and ensures a flexible feel when an occupant sitting on the front seat 50 </ b> F contacts the backrest 52.

  A plurality of heat transfer wires 15A are attached to the radiant heat recovery member 15 of the rear heater 10B according to the second embodiment. The plurality of heat transfer wires 15 </ b> A are made of a material having high thermal conductivity like the radiant heat recovery member 15 of the rear heater 10 </ b> B and the heat conductive sheet 31 of the auxiliary heater 30.

  One end of the heat transfer wire 15A is connected to the radiant heat recovery member 15 of the rear heater 10B, and the other end of the heat transfer wire 15A is connected to the heat conduction sheet 31 of the auxiliary heater 30. Therefore, according to the vehicle heating device 1 according to the second embodiment, the radiant heat RH recovered by the radiant heat recovery member 15 is transmitted to the heat conductive sheet 31 of the auxiliary heater 30 via the plurality of heat transfer wires 15A. Can do.

  Subsequently, the recovery of the radiant heat RH from the second surface 13 side of the rear heater 10B in the vehicle heating apparatus 1 according to the second embodiment and the method of using the recovered radiant heat RH will be described in detail with reference to FIG. To do.

  Also in the second embodiment, the rear heater 10B is disposed on the rear surface side of the backrest 52, and the first surface 12 is disposed so as to face the rear seat 50R side. Accordingly, the radiant heat RH on the first surface 12 side of the rear heater 10B is radiated toward the passenger sitting on the rear seat 50R. That is, the rear heater 10B can perform immediate heating around the legs of the passenger sitting on the rear seat 50R by the radiant heat RH from the first surface 12 side of the rear heater 10B.

  The radiant heat recovery member 15 of the rear heater 10B is connected to the auxiliary heater 30 disposed on the backrest 52 of the front seat 50F via a plurality of heat transfer wires 15A. Since the radiant heat recovery member 15 according to the second embodiment is also arranged so as to cover the second surface 13 side of the rear heater 10B, the radiant heat RH radiated from the second surface 13 side can be recovered.

  The radiant heat RH recovered by the radiant heat recovery member 15 is transmitted to the heat conductive sheet 31 of the auxiliary heater 30 via the plurality of heat transfer wires 15A. That is, the auxiliary heater 30 according to the second embodiment is heated by the radiant heat RH from the second surface 13 side of the rear heater 10B. And since the auxiliary heater 30 is arrange | positioned in the front side of the backrest 52 in the front seat 50F, the vehicle heating device 1 which concerns on 2nd Embodiment uses the auxiliary heater 30 to the passenger | crew who is sitting on the front seat 50F. Can warm up.

  As described above, according to the vehicle heating apparatus 1 according to the second embodiment, the second surface 13 of the rear heater 10 </ b> B that has conventionally been waste heat with respect to the heat conductive sheet 31 that constitutes the auxiliary heater 30. The radiant heat RH from the side can be recovered and transmitted by the radiant heat recovery member 15 and the plurality of heat transfer wires 15A. Thereby, according to the heating apparatus 1 for vehicles, when heating the inside of the compartment C, it can contribute to the power-saving of the heating apparatus 1 for vehicles.

  Further, according to the vehicle heating device 1, a part of the radiant heat RH generated for heating the passenger in the rear seat 50R (that is, the radiant heat RH from the second surface 13 side of the rear heater 10B) is transferred to the front side. Since it can be used for heating the passenger sitting in the seat 50F, the radiant heat RH can be effectively utilized without wasting it.

(Other embodiments)
As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to embodiment mentioned above at all. That is, various improvements and modifications can be made without departing from the spirit of the present invention. For example, you may combine each embodiment mentioned above suitably. The above-described embodiment can be variously modified as follows, for example.

  (1) In the embodiment described above, as a material having high thermal conductivity constituting the radiant heat recovery member 15, for example, a composite material of graphite and copper or aluminum has been mentioned. It is not limited to. For example, as a constituent material of the radiant heat recovery member, only graphite or carbon nanotubes may be used. Further, as a constituent material of the radiant heat recovery member, a composite material of a metal and graphite different from copper and aluminum may be used.

  (2) In the above-described embodiment, the radiant heater 10 is disposed in a seat such as the front seat 50F. However, the present invention is not limited to this aspect. For example, the radiation heater 10 may be arranged on the ceiling surface in the passenger compartment C. In this case, the radiant heater 10 is arranged so that the first surface 12 side faces the passenger compartment C and the radiant heat recovery member 15 contacts the lower surface of the air duct formed in the ceiling. If comprised in this way, the radiant heat RH by the side of the 2nd surface 13 of the radiant heater 10 is collect | recovered by the radiant heat collection | recovery member 15, and it can transmit to the ventilation air B ventilated in the ventilation duct in a ceiling.

  (3) In the above-described embodiment, the radiant body 11 of the radiant heater 10 is configured to emit the radiant heat RH by energizing the nichrome wire 11A. However, the present invention is not limited to this configuration. If the radiant heat RH can be generated, the radiant body 11 can be used. For example, a halogen lamp can be used as the radiant body 11.

  (4) Furthermore, in 1st Embodiment mentioned above, although the seat air conditioner 20 which can perform air_conditionaing | cooling operation, heating operation, and dehumidification heating operation was mentioned as an example of the seat air conditioner in this invention, It is not limited. As the seat air conditioner according to the present invention, other heating devices can be adopted as long as the interior of the passenger compartment C can be heated by blowing hot air through at least the air duct. For example, a fan heater can be employed as the seat air conditioner.

  (5) Moreover, in 1st Embodiment mentioned above, the radiant heat recovery member 15 which comprises the radiation heater 10 (namely, armrest heater 10A, rear heater 10B) is provided with respect to one side surface of the armrest duct 22 or the rear duct 24. Although it is in contact, it is not limited to this embodiment. For example, one side surface of the air duct may be configured by the radiant heat recovery member 15, and the second surface 13 side of the radiator 11 may be brought into contact with one side surface of the air duct. In this case, at least a portion of the one side surface of the air duct that is in contact with the second surface 13 side of the radiator 11 can be constituted by the radiant heat recovery member 15. It is also possible to construct the air duct itself with a material having high thermal conductivity.

  (6) In the second embodiment described above, the heat conductive sheet 31 of the auxiliary heater 30 is configured to be warmed by the radiant heat RH recovered from the second surface 13 side of the rear heater 10B. It is not limited. The auxiliary heater 30 itself can also be configured to generate heat. For example, a mode in which a battery for generating heat is connected to the auxiliary heater 30 is also possible.

DESCRIPTION OF SYMBOLS 1 Vehicle heating device 10 Radiation heater 10A Armrest heater 10B Rear heater 11 Radiant body 15 Radiation heat recovery member 20 Seat air conditioner 22 Armrest duct 24 Rear duct 50F Front seat

Claims (6)

A first surface (12) that includes a radiator (11) that emits radiant heat (RH) for heating the vehicle interior, and from which the radiant heat from the radiator is radiated to a heating target in the vehicle interior; A radiation heater (10, 10A, 10B) having a second surface (13) different from
A radiant heat recovery member (15) disposed on the second surface side of the radiant heater and configured to recover radiant heat radiated from the second surface side of the radiant heater and transmit the radiant heat for use in heating the vehicle interior; A vehicle heating device. A seat air conditioner (20) for blowing warm air into the vehicle interior via an air duct (21, 22, 24) formed inside a seat (50F) disposed in the vehicle interior;
The heating device for vehicles according to claim 1 in which said radiant heat recovery member (15) is arranged at one side of said ventilation duct. The seat (50F) has armrests (53) erected along both side ends of the seating surface (51) of the seat,
The air duct (21, 22, 24) includes an armrest duct (22) formed inside the armrest, and an air outlet (23) that blows warm air from the inside of the armrest duct toward the seat surface side. Have
The first surface (12) of the radiation heater (10A) is arranged facing the seat surface (51) side of the armrest (52),
The radiant heat recovery member (15) is arranged on the second surface (13) side of the radiant heater (10A) and on one side surface of the seat surface (51) side in the armrest duct (22). The vehicle heating device according to claim 2. The seat (50F) has a backrest (52) erected along a rear end portion of the seating surface (51) of the seat,
The air duct (21, 22, 24) includes a rear duct (24) formed inside the backrest, and a rear outlet (25) for blowing warm air from the inside of the rear duct toward the vehicle interior. Have
The first surface (12) of the radiation heater (10B) is disposed on the rear surface of the backrest so as to face a rear seat (50R) located behind the seat,
The said radiant heat recovery member (15) is arrange | positioned by the said 2nd surface (13) side of the said radiant heater (10B), and the rear surface side in the said rear part duct (24). Vehicle heating device. The seat (50F) includes a backrest (52) erected along a rear end portion of the seating surface (51) of the seat, and an auxiliary heater (30) disposed along the front surface of the backrest (52). And having
The first surface (12) of the radiation heater (10B) is disposed on the rear surface of the backrest so as to face a rear seat (50R) located behind the seat,
The radiant heat recovery member (15, 15A) extends from the second surface (13) side of the radiant heater (10B) disposed on the rear surface of the backrest (52) and is connected to the auxiliary heater (30). The vehicle heating device according to claim 1.   6. The vehicle heating device according to claim 1, wherein the radiant heat recovery member (15, 15 </ b> A) is made of a high heat conductive material having a heat conductivity of a predetermined value or more.

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