JP5375931B2 - Vehicle heating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein in a conventional heater for a vehicle, part of a body of an occupant may continue to contact with a heat radiation member depending on his/her physique, seating posture and body movement during driving etc. and this may unnecessarily heat the contact part, make the occupant feel uncomfortable, and cause low-temperature burn. <P>SOLUTION: In this heater for a vehicle, an improvement to increase contact thermal resistance is applied to the surface of a heat radiation member 3. Thus, even if part of an occupant body contacts with the heat radiation member 3, since the contact thermal resistance is large, heat conduction from a heating means 2 is prevented to suppress unnecessary heating of the contact part. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a heating device for a vehicle.

  Conventionally, this kind of vehicle heating device is disclosed in Patent Document 1. In this prior art, a planar electric heater is disposed along the surface of the interior member in the vehicle interior, and a heat radiating member made of a material having a high thermal emissivity is disposed on the surface of the electric heater. . The heat radiating member is heated by the heat generated by the electric heater, and infrared rays are emitted from the surface of the heat radiating member.

JP 2005-212556 A

  However, in the above prior art, a part of the occupant's body may continue to touch the heat radiating member depending on the occupant's physique, sitting posture, body movement during driving, etc. However, there were problems such as causing discomfort and low-temperature burns.

  This invention is made | formed in view of the said condition, and it aims at providing the heating apparatus for vehicles which should not be heated unnecessarily even if it should contact.

  In order to solve the above-described conventional problems, a vehicle heating apparatus according to the present invention includes a heating unit disposed on an interior member in a vehicle interior, and heat radiation disposed on a surface of the interior member or the heating unit. The heat radiation member is characterized in that the surface is processed to increase the contact thermal resistance.

  The vehicle heating device according to the present invention can quickly and efficiently warm the body by radiant heating or contact heating using radiant heating, a seat heater, and a steering wheel heater as main heating in the initial stage after boarding. In addition, when the engine is warmed, the air conditioning is used as the main heating to warm the room, and the radiant heating, seat heater, and steering wheel heater are sub-heated while suppressing the use of power, while the body is assisted with radiant heating or contact heating. Can be warmed up.

1 is an external view of a side door panel 1 including a vehicle heating device according to a first embodiment of the present invention. Configuration diagram in AA section of FIG. The block diagram in the AA cross section in the 2nd Embodiment of this invention The block diagram in the 3rd Embodiment of this invention (A) External view of side door panel 1 to which this embodiment is applied (b) Configuration diagram of speaker cover 8, heating means 2, and speaker 9 (A) Configuration diagram in the present embodiment (b) External view in which the present embodiment is arranged on a ceiling surface in a vehicle interior (A) External view of a vehicle interior to which the present embodiment is applied viewed from the rear of the vehicle interior (b) External view of the vehicle interior to which the present embodiment is applied viewed from the inside of the vehicle External view of heater unit 27 of the present embodiment (A) Block diagram of the vehicle interior heating system of the present embodiment (b) Operation diagram showing the control mode of the vehicle interior heating system (A) Block diagram of the vehicle interior heating system of the present embodiment (b) Operation diagram showing the control mode of the vehicle interior heating system Operational diagram showing the control mode of the vehicle interior heating system of the present embodiment

According to a first aspect of the present invention, there is provided a seat heater disposed on each seat, an air conditioner, a temperature sensor for detecting an engine temperature, and a control means for controlling the seat heater and the air conditioner upon receiving a temperature signal of the temperature sensor. And the control means energizes all the seat heaters in a state in which the air blower of the air conditioner is stopped during the start operation of the seat heater and the air conditioner, and the engine is predetermined by a temperature signal of the temperature sensor. When this temperature is reached, the air-conditioner starts to blow, lowers the output of the seat heater, and energizes each seat heater in turn .

According to a second aspect of the present invention, there is provided a seat heater disposed on each seat, an air conditioner, a temperature sensor for detecting an engine temperature, and a control means for controlling the seat heater and the air conditioner upon receiving a temperature signal of the temperature sensor. And detecting means for detecting an operation for the driver to get on, and when the control means detects an operation for the driver to get on the basis of the output of the detecting means, the air-conditioner stops blowing the air conditioner. In this state, all the seat heaters are energized, and when the engine reaches a predetermined temperature by the temperature signal of the temperature sensor, the air conditioner starts to blow, and the output of the seat heater is reduced , and the seat heater It is characterized by switching energization every time .

A third invention is characterized in that, in the first invention or the second invention, the set temperature of the seat heater is controlled by a 1 / f fluctuation pattern.

  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 FIGS.

  FIG. 1 is an external view of a side door panel 1 including a vehicle heating device according to a first embodiment of the present invention. Here, the side door panel 1 is for a driver side door for a right-hand drive vehicle. In the drawing, a heating means 2 is disposed on a side door panel 1 as an interior member. The heating means 2 is formed by sheeting an ultrafine heater wire through a nonwoven fabric. A thermistor is disposed in the vicinity of the heater wire. Moreover, although not shown in the figure, there is provided control means for controlling energization of the heater wire so that the thermistor output becomes a preset temperature set in advance.

  FIG. 2 is a block diagram of the AA cross section of FIG. In the figure, the heating means 2 is disposed on the surface of the side door panel 1, and the heat radiation member 3 is disposed on the surface of the heating means 2. In the figure, the front left side is the vehicle inner side and the right side is the vehicle outer side. The heat radiation member 3 has, for example, a structure in which a sheet-shaped synthetic fiber fabric is bonded to a thin urethane sheet, and the surface on the inner side of the vehicle (surface of the synthetic fabric) is brushed. The heating means 2 is disposed at a position where the radiant heat efficiently hits the knee to the lower leg when the driver is seated.

  With the above configuration, when the heater wire of the heating unit 2 is energized, the control unit controls the energization of the heater wire so that the thermistor output becomes a preset temperature. At this time, radiant heat is generated from the heat radiating member 3 due to heat generated by the heater wire, and is radiated to the knee to the lower leg of the driver while seated to warm the knee to the lower leg of the driver.

  Even if a part of the driver's body contacts the heat radiating member 3, the surface of the heat radiating member 3 is brushed and the contact heat resistance is large, so that the heat conduction from the heating means 2 is not performed. The contact portion is not heated unnecessarily.

  In the above embodiment, the surface of the heat radiating member 3 is brushed, but the surface of the heat radiating member 3 may be textured or embossed to increase the contact heat resistance. If it is the structure which increases this, it will not be limited to the said Example.

  Moreover, it is preferable to select the side door panel 1 whose thermal conductivity is lower than that of the heat radiation member 3. According to this configuration, heat generated by the heating means 2 is not easily dissipated through the side door panel 1, and heat radiation from the heat radiating member 3 can be efficiently performed.

  In some cases, a car audio speaker may be attached to the side door panel 1. In such a case, the heating means 2 may be disposed avoiding the location of the speaker.

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

  FIG. 3 is a configuration diagram in a cross section corresponding to the AA cross section of FIG. 1 in the present embodiment. In the present embodiment, as shown in FIG. 3, the heating means 2 is disposed outside the side door panel 1 and the heat radiation member 3 is disposed inside the vehicle. A heat insulating member 4 is disposed on the vehicle outer surface of the heating means 2. As the side door panel 1 in the present embodiment, a material having a good thermal conductivity, for example, a composite material in which metal particles are kneaded with a resin, is used at least in a region where the heating means 2 is disposed.

  The heat generated by the heating means 2 is efficiently transmitted to the heat radiating member 3 and radiated to the inside of the vehicle by the heat insulating member 4 and the side door panel 1 having good heat conductivity. Further, since the heating means 2 is not disposed on the vehicle interior side of the side door panel 1, there is no problem in appearance such as a local rise of the heat radiation member 3 due to the heater wire.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG.

  FIG. 4 is a configuration diagram according to the present embodiment and corresponds to the AA cross section of FIG. In the present embodiment, as shown in FIG. 4, the side door panel 1 is provided with a heating means 2, and includes a covering means 5 that covers the heating means 2 and transmits heat radiation generated from the heating means 2. Yes. In the figure, the front left side is the vehicle inside, and the right side is the vehicle outside.

  The covering unit 5 includes a gap portion 6 between the covering unit 5 and the heating unit 2, and includes a mesh member 7 whose covering surface has a predetermined opening ratio. The gap 6 is formed by providing a spacer or the like between the heating means 2 and the mesh member 7. The mesh member 7 is configured, for example, by forming a thin wire made of metal or resin into a lattice shape or a grill shape so as to have a predetermined aperture ratio. Similarly to the first embodiment, the heating means 2 is formed by sheeting a non-woven fabric with an extremely fine heater wire meandering.

  In addition, in order to improve the efficiency of heat radiation to the vehicle interior side, the heater wire is disposed on the nonwoven fabric surface on the vehicle interior side. A thermistor is disposed in the vicinity of the heater wire. Moreover, although not shown in the figure, there is provided control means for controlling energization of the heater wire so that the thermistor output becomes a preset temperature set in advance.

  With the above configuration, when the heater wire of the heating unit 2 is energized, the control unit controls the energization of the heater wire so that the thermistor output becomes a preset temperature. At this time, radiant heat is generated by the heat generated by the heater wire, which is transmitted through the opening of the mesh member 7 and is radiated to the knee to the lower leg of the sitting driver, so that the knee to the lower leg of the driver is Warm up.

  In addition, even if a part of the driver's body contacts the mesh member 7, the mesh member 7 itself transmits the radiant heat of the heating means 2 and does not rise in temperature. There is no.

  The surface of the metal or resin fine wire used for the mesh member 7 may be brushed, embossed, or embossed, increasing the contact thermal resistance of the mesh member 7 and heating the contact part unnecessarily. Things will disappear.

  Further, in the above embodiment, the covering means 5 includes the gap 6 between the heating means 2 and the covering surface has the mesh member 7 having a predetermined aperture ratio. An infrared transmitting material such as high-density polyethylene may be formed into a sheet shape, a film shape, a lattice shape, a grill shape, or the like, and the coated surface transmits the radiant heat in the infrared region absorbed by the human body. effective.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIG.

  FIG. 5A is an external view of the side door panel 1 to which the present embodiment is applied, and FIG. 5B is a configuration diagram of the speaker cover 8, the heating means 2, and the speaker 9. As shown in FIGS. 5A and 5B, in the present embodiment, the mesh member of the third embodiment is also used as the car audio speaker cover 8 provided on the door panel. The speaker cover 8 has a predetermined aperture ratio as in the mesh member of the third embodiment. The heating means 2 is disposed between the speaker cover 8 and the speaker 9. As shown in FIG. 5B, the heating means 2 has a configuration in which the heater wire 11 is meandered on the nonwoven fabric 10 and a plurality of transmission hole portions 12 are provided so as to transmit sound from the speaker 9. . The heating means 2 and the speaker cover 8, and the heating means 2 and the speaker 9 are joined together with a predetermined gap through a spacer.

  With the above configuration, when the heater wire of the heating unit 2 is energized, the control unit controls the energization of the heater wire so that the thermistor output becomes a preset temperature as in the third embodiment. At this time, radiant heat is generated by the heat generated by the heater wire, and the radiation passes through the opening of the speaker cover 8 and is radiated to the knee to the lower leg of the driver while seated. Warms up.

  Even if a part of the driver's body comes into contact with the speaker cover 8, the speaker cover 8 permeates the radiant heat of the heating means 2 and does not rise in temperature, so that the contact portion is unnecessarily heated. There is nothing to do.

  Further, since the nonwoven fabric 10 of the heating means 2 is provided with a plurality of transmission hole portions 12 so as to transmit the sound from the speaker 9, the function as a normal car audio speaker is not impaired. .

(Embodiment 5)
A fifth embodiment of the present invention will be described with reference to FIG.

  6A is a configuration diagram according to the present embodiment (corresponding to the AA cross section in FIG. 1), and FIG. 6B is an external view in which the present embodiment is disposed on the ceiling surface in the vehicle interior. In the present embodiment, as shown in FIG. 6A, the heating unit 2 includes a light collecting unit 13 that concentrates the generated heat radiation at a predetermined place. The condensing part 13 has a shape like a concave lens. Here, a set of the heating means 2, the gap portion 6, the mesh member 7, and the light collecting portion 13 is referred to as a heater unit 14.

With the above configuration, when the heater wire of the heating unit 2 is energized, the control unit controls the energization of the heater wire so that the thermistor output becomes a preset temperature as in the third embodiment. Radiant heat generated by the heat generated by the heater wire is irradiated in the vicinity of the point P due to the concave lens shape of the light collecting portion 13. Then, as shown in FIG. 6B, the heater unit 14 having the above-described configuration is arranged on the ceiling surface on the thigh of the occupant, and the condensing portion 13 of the radiant heat is increased by the condensing unit 13. In the thigh, radiant heat from the heater unit 14 is collected and applied to the thigh, and the thigh is heated.

  As in Embodiments 1 to 4, when the feet are equipped with radiant heating or seat heaters, the lower leg and rear thigh are warmed, but the front thigh is The front thigh is not warmed unless the vehicle interior is warmed by heating the air conditioner and heating the air conditioner. On the other hand, according to the present embodiment, since the radiant heat from the heater unit 14 disposed on the ceiling surface is collected and applied to the thigh, the front thigh can be quickly heated, and a warm feeling is provided. improves.

(Embodiment 6)
A sixth embodiment of the present invention will be described with reference to FIG.

  FIG. 7A is an external view of a vehicle interior to which the present embodiment is applied as viewed from the rear of the vehicle, and FIG. 7B is an external view of the vehicle interior to which the present embodiment is applied as viewed from the inside of the vehicle. . In the first embodiment, the heating means 2 is disposed in the place 21 corresponding to the seat foot side of the side door panel 1 on the driver's seat side. However, as shown in FIG. Alternatively, it may be disposed on interior members such as the left and right side surfaces 19 of the center console 18 and the body side surface 20 next to the accelerator pedal.

  Further, as shown in FIG. 7 (b), the heating means 2 is placed at the place 22 corresponding to the seat shoulder side of the side door panel 1, the place 24 corresponding to the seat foot side of the side door panel 23 of the rear seat, and the seat shoulder side. It is good also as a structure arrange | positioned to the interior member of the place 25 corresponding. Moreover, it is good also as a structure which is arrange | positioned in the back part 26 of a front seat, and heat radiation is applied to the leg part-leg part of the occupant of a rear seat. Although not shown, the heating means 2 may be disposed on an armrest mounted on a seat or a side door panel, a floor surface in front of the seat, or the like.

(Embodiment 7)
A seventh embodiment of the present invention will be described with reference to FIG.

  FIG. 8 is an external view of the heater unit 27 of the present embodiment. The heater unit 27 is disposed in the lower part 17 of the instrument panel 16 as shown in FIGS. 7A and 7B and includes two heating means 28 and 29. In addition, the heat radiating member and coating | coated means corresponding to the heating means 28 and 29 use what was described in any of Embodiment 1-5. And when the heater unit 27 is arrange | positioned in the lower part 17 of the instrument panel 16, the heating means 28 and 29 are comprised so that an occupant's right leg part and a left leg part may respectively oppose. In particular, when applied to the driver's seat, if the vehicle is an automatic vehicle, the right leg and the left leg are almost positioned by placing the right foot in the accelerator direction and the left foot on the leg rest, so this position of the leg is opposed. The heating means 28 and 29 may be arranged as described above.

  With the above configuration, when the heating means 28 and 29 are energized, the heat radiation generated by the heat generated by the heating means 28 and 29 strikes the right leg and the left leg of the occupant, respectively, and both legs are warmed. And since the heating means 28 and 29 are divided | segmented and arrange | positioned so that an occupant's right leg part and left leg part may be opposed, it is the structure which arrange | positions a heating means to the whole surface of the heater unit 27. In comparison, the heating means can be rationalized, and the power consumption during heating can be reduced, resulting in an energy saving effect.

  In the above first to seventh embodiments, a heater wire is used as the heating means 2. However, for example, a planar heater having PTC characteristics may be used, and the rise after energization is fast, and There is an advantage that the heater temperature is not excessively increased and safety is improved.

(Embodiment 8)
An eighth embodiment of the present invention will be described with reference to FIG.

  FIG. 9A is a block diagram of the vehicle interior heating system of the present embodiment, and FIG. 9B is an operation diagram showing a control mode of the vehicle interior heating system. As shown to Fig.9 (a), this Embodiment is a heating system in a vehicle interior. A built-in steering wheel heater 32 and an air conditioner 33 are provided. The control means 34 receives the temperature signal of the engine temperature sensor 35 and controls the operation of the foot radiant heating 30, the seat heater 31, the steering wheel heater 32, and the air conditioner 33.

  The operation of the above configuration will be described with reference to FIG. When the driver gets on and activates the foot radiation heating, the seat heater, the steering wheel heater, and the air conditioner at time t0, the control means 34 starts heating in the modes of F1, S1, W1, and A1, respectively. Here, F1, S1, and W1 are full energization modes. A1 is a preheating mode, and air is not sent during the preheating mode.

  Next, when the engine temperature reaches a predetermined temperature at time t1, F1, S1, W1, and A1 are changed to F2, S2, W2, and A2 modes. Here, F2, S2, and W2 are modes in which the ON / OFF interval of energization and the set temperature are controlled by a 1 / f fluctuation pattern, and energy saving operation is performed while maintaining comfort. A1 is a hot air blowing mode.

  With the control mode as described above, at the initial stage after boarding, the foot radiant heating, the seat heater, and the steering wheel heater can be used as the main heating, and the body can be quickly and efficiently warmed by radiant heating or contact heating. In addition, when the engine is warmed, the air conditioning is used as the main heating to warm the room, and the foot radiant heating, seat heater, and steering wheel heater are sub-heated while suppressing the use of power, while radiant heating and contact heating are used to assist the body. Can be warmed up. As described above, according to the present embodiment, it is possible to improve the comfort with an emphasis on quick heat at the initial stage of heating, and to achieve both energy saving and comfort when the heating is stable.

(Embodiment 9)
A ninth embodiment of the present invention will be described with reference to FIG.

  FIG. 10A is a block diagram of the vehicle interior heating system of the present embodiment, and FIG. 10B is an operation diagram showing a control mode of the vehicle interior heating system. 10A, the present embodiment includes a foot radiant heating 30, a seat heater 31, a steering wheel heater 32, and an air conditioner 33 as in the first to fourth embodiments as a heating system for the passenger compartment. Yes. The control means 34 receives the temperature signal of the engine temperature sensor 35 and the determination signal of the touch sensor 36 of the outer handle of the driver's seat side door, and the foot radiation heating 30, the seat heater 31, the steering wheel heater 32, and the air conditioner 33. Control driving. The touch sensor 36 includes, for example, a detection electrode disposed on the door handle to detect a change in capacitance, or a piezoelectric sensor disposed on the movable portion of the door handle to detect vibration of the movable portion due to the door handle operation. A configuration that detects displacement is used.

The operation of the above configuration will be described with reference to FIG. When the driver operates the outer handle of the driver's side door at time t2, the control means 34 starts heating the foot radiant heating, seat heater, and steering wheel heater in F1, S1, and W1, respectively. To do. Here, F1, S1, and W1 are full energization modes. When the driver gets on at time t4 and operates the air conditioner, the air conditioner operates in the preheating mode of A1.
No air is sent during the preheat mode.

  Next, when the engine temperature reaches a predetermined temperature at time t4, F1, S1, W1, and A1 are changed to F2, S2, W2, and A2 modes. Here, F2, S2, and W2 are modes in which the ON / OFF interval of energization and the set temperature are controlled by a 1 / f fluctuation pattern, and energy saving operation is performed while maintaining comfort. A1 is a hot air blowing mode.

  With the control mode as described above, heating by the foot radiant heating, seat heater, and steering wheel heater is started before the driver gets on, and when the driver gets on, the start-up of the heating is completed. The body can be warmed quickly and efficiently by radiant heating or contact heating. In addition, when the engine is warmed, the air conditioning is used as the main heating to warm the room, and the foot radiant heating, seat heater, and steering wheel heater are sub-heated while suppressing the use of power, while radiant heating and contact heating are used to assist the body. Can be warmed up. As described above, according to the present embodiment, the radiant heating or the contact heating is started before boarding after detecting the door handle operation, so that a feeling of heating can be obtained as soon as the user gets on and the comfort can be further improved. At the same time, it is possible to achieve both energy saving and comfort when heating is stable.

(Embodiment 10)
A tenth embodiment of the present invention will be described with reference to FIG.

  FIG. 11 is an operation diagram showing a control mode of the vehicle interior heating system of the present embodiment. The present embodiment is applied to the seat heater control mode S2 of the ninth or tenth embodiment. In the present embodiment, seat heaters are provided in each of the driver seat (D seat), the passenger seat (P seat), the driver side rear seat (DR seat), and the passenger seat rear seat (PR seat). . The seat heater is energized at each seat by an energization switch provided for each seat. However, an occupant detection sensor may be provided on the seat to energize only the seat detected by the occupant. In the following description, it is assumed that people are sitting in all four seats.

  The operation of the above configuration will be described with reference to FIG. In the control mode S1, the D seat, P seat, DR seat, and PR seat are all energized. When the control mode S2 is entered at time t5, only the D seat is energized at times t5 to t6, only the P seat is energized at times t6 to t7, only the DR seat is energized at times t7 to t8, and only the PR seat is energized at times t8 to t9. After energization, the operation from t5 to t9 is repeated after time t9. With such switching control for each seat, it takes time to elapse 1 cycle (t5 to t9), and there is a concern about a decrease in seat temperature, but the seat uses urethane as a cushion and has heat insulation, Furthermore, since there is a heat capacity of the seated person, once the seat temperature rises due to heat generated by energization of the seat heater, even if the energization is stopped, the decrease in the seat temperature is slow and the warm feeling continues. The time required for one cycle is preferably 3 to 5 minutes, depending on the vehicle interior temperature. In the above operation, four seats are targeted. However, for example, when there is no PR seat and no power is supplied, switching control is performed for three seats: the D seat, the P seat, and the DR seat.

  Energy saving can be further improved by the control mode in which the energization is switched for each sheet as described above.

  Although the seat heater is targeted in the tenth embodiment, the present invention is not limited to the seat heater. For example, the foot radiant heating and the seat heater are alternately energized, and the energization on / off interval and the set temperature are varied by 1 / f. It is good also as a structure which controls by this pattern and makes energy saving and comfort compatible.

  As described above, the vehicular heating device of the present invention is not unnecessarily heated even when it comes into contact with radiant heating. For example, a desk heater, a kick heater, an electric kotatsu, etc. It becomes possible to apply to the radiant heating appliance which a part touches easily.

1 Side door panel (interior material)
2 Heating means 3 Heat radiation member 5 Covering means 6 Gap part 7 Mesh member 8 Cover for speaker 13 Condensing part

Claims (3)

A seat heater disposed in each seat ; an air conditioner; a temperature sensor that detects a temperature of the engine; and a control unit that receives the temperature signal of the temperature sensor and controls the seat heater and the air conditioner. When starting the seat heater and the air conditioner, the means energizes all the seat heaters in a state where the air blowing of the air conditioner is stopped, and when the engine reaches a predetermined temperature by the temperature signal of the temperature sensor, The vehicle heating apparatus, wherein the air conditioner starts to blow, reduces the output of the seat heater, and energizes each seat heater in turn . A seat heater disposed in each seat, an air conditioner, a temperature sensor that detects the temperature of the engine, a control means that receives the temperature signal of the temperature sensor and controls the seat heater and the air conditioner, and a driver gets on Detecting means for detecting an operation for carrying out the operation, and when the control means detects an operation for the driver to get on the basis of the output of the detecting means, all the air conditioners are stopped in a state where the air blowing of the air conditioner is stopped . When the engine reaches a predetermined temperature by the temperature signal from the temperature sensor, the air conditioner starts to blow air to reduce the output of the seat heater and switch the energization for each seat heater. A vehicle heating device. The vehicle heating device according to claim 1 or 2 , wherein the set temperature of the seat heater is controlled by a 1 / f fluctuation pattern.