JP2002233431A - Air conditioning device for seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To comfortably take a seat by rising the temperature of an area which is be in contact with a human body on a seat surface in a short time and almost uniformly heating it. SOLUTION: This device is provided with a Peltier module 20 for performing heat exchange to cold and warm air and the heat exchange to a heat conductive sheet 31 and a heater part 35. A seat surface cover 28 is cooled and heated by both of the blowing of the cold and warm air and heat conduction from the heat conductive sheet 31 and a heating function by the heater part 35 is added as well at the time of heating. The temperature of the area which is in contact with the human body on the seat surface is almost uniformly risen in a short time, it is almost uniformly heated and comfortable sitting is enabled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a seat which cools or heats a seat to maintain a comfortable temperature at all times.

[0002]

2. Description of the Related Art Conventionally, as this type of seat air conditioner, there has been one described in Japanese Patent Application Laid-Open No. Hei 5-277020. FIG. 7 shows a conventional seat air conditioner described in the above publication.

In FIG. 7, an air conditioner for a seat includes a backrest 1.
And a seat 3 for a vehicle comprising a seat 2, a Peltier module 4 disposed in a space below the seat 3, and a main heat exchanger 5 connected to the Peltier module 4 for cooling or heating an air flow. And a waste heat heat exchanger 6 for exchanging waste heat into an air flow, an air flow blowout hole 8 provided on the front cover 7 on which the occupant of the backrest 1 and the seating portion 2 sits and blows out the air flow;
An air flow passage 9 communicated from the main heat exchanger 5 to the air flow outlet 8 and provided inside the backrest portion 1 and the seating portion 2 for conveying the blown air flow, and a waste heat heat exchanger 6 It was composed of a waste heat air flow passage 10 for conveying the waste heat air flow, and a blower 11 for conveying the air flow to the main heat exchanger 5 and the waste heat heat exchanger 6 connected to the Peltier module 4.

[0004] The Peltier module 4 and the blower 11 are driven during operation of the car. In summer, the air flow conveyed by the blower 11 is cooled by the main heat exchanger 5 transferred by the Peltier module 4, and the air is cooled. It was conveyed through the flow passage 9 and was blown out from the air flow outlet 8 as cool air. Further, the waste heat air flow heated by the waste heat exchanger 6 transferred by the Peltier module 4 is blown out from the waste heat air passage 10 as waste heat.

[0005] On the other hand, in winter, the air flow conveyed by the blower 11 is heated by the main heat exchanger 5 transferred by the Peltier module 4, conveyed through the air flow passage 9, and blows out by the air flow outlet. 8 was blowing out as warm air. The waste heat air flow cooled by the waste heat exchanger 6 transferred by the Peltier module 4 is blown out from the waste heat air passage 10 as waste heat. In this way, the seat is air-conditioned by cooling or heating the back and buttocks of the occupant.

[0006]

However, in the above-mentioned conventional apparatus, when the operation of the automobile is stopped in winter and the seat temperature is lowered, and the vehicle is restarted, the Peltier module 4 and the blower 11 are driven, and the air flow is reduced. The heated air is conveyed to the air flow outlet 8 and blows out. The specific heat of the air is as small as about 0.29, and the temperature decreases before reaching the air flow outlet 8. The temperature range in which the air flow is heated and rises is determined by the heating amount of the Peltier module 4 and the air volume of the blower 11. In order for the air flow to reach the air flow outlet 8, the air volume of the blower 11 cannot be less than a predetermined value. Therefore, the temperature range in which the air flow is heated and increased cannot be increased. Furthermore, since the temperature of the supplied airflow is kept low by the Peltier module 4 unless the temperature in the vehicle interior where the seat 3 is provided rises, the Peltier module 4 heats the airflow. The temperature is kept low. Therefore, there is a problem that the front cover 7 of the seat 3 does not warm up forever. In addition, a part of the air flow outlet 8 may be closed by a human body, and the closed air flow outlet 8 does not allow a heated air flow to blow out. There was also a problem that. Further, since the air flow outlets 8 are provided at certain intervals, the entire area of the seat surface cannot be uniformly cooled or heated.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problem. After stopping the operation of a car in winter, the temperature of a region in contact with the human body on the seat surface at the time of re-operation is increased almost uniformly in a short time. It is an object of the present invention to provide a seat air-conditioning system that can heat a region in contact with a vehicle substantially uniformly so as to be able to sit comfortably.

[0008]

In order to solve the above-mentioned conventional problems, an air conditioner for a seat according to the present invention includes a Peltier module and a heater, and a seat surface cover is formed by blowing cold and hot air from a heat conductive sheet. The cooling is performed by both the heat conduction and the heating function of the heater section is added during the heating.

[0009] Thus, in summer, when the vehicle is operated, the supplied air flow is heat-exchanged to cool air by the Peltier module. At the same time, the Peltier module also exchanges heat with the heat conducting sheet and cools it. The cooled heat conductive sheet cools the seat surface cover by heat conduction. Further, the cool air is conveyed to the seat surface cover and blows out from the seat surface cover. Therefore, the seat surface cover is cooled by both convection due to blowing of cold air and heat conduction from the heat conductive sheet.

In winter, when the vehicle is operated, the supplied airflow is exchanged with warm air by the Peltier module. At the same time, the Peltier module also exchanges heat with the heat conductive sheet and heats it. Further, the heat conductive sheet is heated by the heater section. The heated heat conductive sheet heats the seat surface cover by heat conduction. Further, the warm air is conveyed to the seat surface cover and blows out from the seat surface cover. Therefore, the seat surface cover is heated by both convection due to the blowing of warm air and heat conduction from the heat conductive sheet.

In this manner, the seat surface cover is cooled and heated. In winter, in particular, in addition to the convection due to the blowing of warm air and the heat transfer of the heat conductive sheet, the heating function of the heater is added. The temperature of the area in contact with the human body on the seat surface can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a Peltier module according to a first embodiment of the present invention; FIG. 2 is a perspective view of a Peltier module; FIG. And a heater for transmitting heat to the seat surface cover or blowing hot air together with the Peltier module.

[0013] Thus, in summer, when the vehicle is operated, the supplied air flow is heat-exchanged to cool air by the Peltier module. At the same time, the Peltier module also exchanges heat with the heat conducting sheet and cools it. The cooled heat conductive sheet cools the seat surface cover by heat conduction. Further, the cool air is conveyed to the seat surface cover and blows out from the seat surface cover. Therefore, the seat surface cover is cooled by both convection due to blowing of cold air and heat conduction from the heat conductive sheet.

In winter, when the vehicle is operated, the supplied air flow is exchanged with warm air by the Peltier module. At the same time, the Peltier module also exchanges heat with the heat conductive sheet and heats it. Further, the heat conductive sheet is heated by the heater section. The heated heat conductive sheet heats the seat surface cover by heat conduction. The warm air is conveyed to the seat cover and blows out from the seat cover. Therefore, the seat surface cover is heated by both convection due to the blowing of warm air and heat conduction from the heat conductive sheet.

In this manner, the seat surface cover is cooled and heated. In winter, in particular, in addition to the convection due to the blowing of warm air and the heat transfer of the heat conductive sheet, the heating function of the heater is added. The temperature of the area in contact with the human body on the seat surface can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

According to a second aspect of the present invention, in particular, the seat air conditioner according to the first aspect is cooled and heated by a Peltier module, and heat is transferred from a cooling or heating surface of the Peltier module and passes therethrough. A cooling / heating heat exchanger for cooling or heating air, a waste heat heat exchanger for transferring heat from the waste heat surface of the Peltier module and exchanging heat with passing air, and blowing air to at least the cooling / heating heat exchanger A blower, a ventilation passage body connected to the cold / hot heat exchanger to form a ventilation passage for guiding the air heat exchanged by the cold / hot heat exchanger to an air outlet provided in the seat, and a seat surface together with the Peltier module. The structure has a heater for transmitting heat to the cover or blowing out hot air.

According to the above configuration, when the Peltier module is operated in summer, the surface of the Peltier module to be cooled or heated becomes a low temperature surface, and the cold / hot heat exchanger is cooled. When the blower is driven to blow air to the cold / hot heat exchanger, the air blown to the cold / hot heat exchanger is cooled and flows into the ventilation path. At the same time, the surface of the Peltier module to be cooled or heated conducts heat to the heat conductive sheet and cools the heat conductive sheet. Since the ventilation passage is partially formed by the heat conduction sheet, the air passing through the ventilation passage also exchanges heat with the heat conduction sheet. Further, since the heat conductive sheet is provided in contact with the seat surface cover, the seat surface cover is cooled by heat conduction. An air outlet provided in the heat conductive sheet passes through an air outlet provided in the seat surface cover and blows out to the seat atmosphere to cool the human body.

When the operation is performed in winter, the surface of the Peltier module to be cooled or heated becomes a high-temperature surface, and the cooling / heating heat exchanger is heated. When the blower is driven to blow air to the cold / hot heat exchanger, the air blown to the cold / hot heat exchanger is heated and flows into the ventilation path. At the same time, the surface of the Peltier module to be cooled or heated also transfers heat to the heat conductive sheet and heats the heat conductive sheet. Since a part of the ventilation path is formed from the heat conduction sheet, the air passing through the ventilation path also exchanges heat with the heat conduction sheet. The heat conductive sheet is also heated by the heater. Since the heat conductive sheet is provided in contact with the seat surface cover, the seat surface is heated by heat conduction. An air outlet provided in the heat conductive sheet passes through an air outlet provided in the seat surface cover and blows out to the seat atmosphere to heat the human body.

In this way, especially in winter, in addition to the convection due to the blowing of warm air and the heat transfer of the heat conductive sheet, the heating function of the heater is also added. The temperature can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

The invention described in claim 3 is particularly advantageous in claim 1,
2. In the seat air conditioner described in 2, the heater unit is provided in the cold / hot heat exchanger to generate heat at the time of heating, so that, when operated, the surface of the Peltier module to be cooled or heated becomes a hot surface, Heat the heat exchanger. Since the blower is driven to blow air to the cold / hot heat exchanger, the air blown to the cold / hot heat exchanger is heated. Further, since the heater section generates heat and heats the cold / hot heat exchanger, the temperature becomes higher and flows into the ventilation passage. In this case, in the cold / heat exchanger, the portion heated by the heat generated by the heater does not thermally interfere with the portion heated by the Peltier module. At the same time, the surface of the Peltier module to be cooled or heated also transfers heat to the heat conductive sheet and heats the heat conductive sheet.

In this manner, the seat surface cover is cooled and heated. In winter, in particular, in the winter, both the Peltier module and the heater are heated to warm air, so that the area of the seat surface in contact with the human body at the time of re-operation is restarted. The temperature can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

The invention described in claim 4 is particularly advantageous in claim 1,
2. In the seat air conditioner described in 2, the heater section is provided in the ventilation path to generate heat when heated, so that when the Peltier module is operated in winter, the surface to be cooled or heated becomes a high-temperature surface, Heat the cold / hot heat exchanger. Since the blower is driven to blow air to the cold / hot heat exchanger and the waste heat heat exchanger, the air blown to the cold / hot heat exchanger is heated and flows into the ventilation path. In the ventilation passage, the temperature of the air becomes higher because the heater generates heat. At the same time, the surface of the Peltier module to be cooled or heated also transfers heat to the heat conductive sheet and heats the heat conductive sheet.

In this way, the seat surface cover is cooled and heated. In winter, in particular, in the winter, both the Peltier module and the heater unit heat the heated air to the warm air. The temperature can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

The invention described in claim 5 is particularly applicable to claims 2 to
4. In the seat air conditioner according to 4, the air passage is provided so that a part of the cooled or heated air flow is returned and the temperature range for cooling or heating by the Peltier module is expanded again to expand the temperature range for cooling or heating. When the operation is performed in winter, the cooling or heating surface of the Peltier module becomes a high temperature surface, and the cooling / heating heat exchanger is heated. . Since the blower is driven to blow air to the cold / hot heat exchanger and the waste heat heat exchanger, the air blown to the cold / hot heat exchanger is heated and flows into the ventilation path. Part of the airflow that has flowed into the ventilation path enters a return path that branches off from the ventilation path. Since the return passage merges with the inlet passage of the blower, the airflow that has exited the return passage enters the blower and is transported to the Peltier module.
It is heated again, the temperature range for heating is expanded, and the temperature becomes higher. Then, it is conveyed from the ventilation path to the air outlet and blows out. At the same time, the surface of the Peltier module to be cooled or heated also transfers heat to the heat conductive sheet and heats the heat conductive sheet.

In this way, the seat surface cover is cooled and heated. In particular, in winter, a part of the heated air flow is returned to expand the temperature range of heating by the Peltier module. While restarting, the temperature of the area in contact with the human body on the seat surface is raised almost uniformly in a short time,
The temperature of the area in contact with the human body can be almost uniformly heated so that the user can sit comfortably.

The invention described in claim 6 is particularly advantageous in claim 1 to claim 1.
5. In the seat air conditioner according to 5, a mode in which cooling is performed by the Peltier module during cooling, and a mode in which heating is performed only by the Peltier module during heating, a mode in which heating is performed by both the Peltier module and the heater unit, and a heater The operation mode control unit that switches to the mode in which heating is performed only by the unit is provided.When cooling, the operation mode control unit performs cooling using the Peltier module, and when heating, the operation mode control unit is used. The unit switches between a mode in which heating is performed only by the Peltier module, a mode in which heating is performed in both the Peltier module and the heater unit, and a mode in which heating is performed only by the heater unit.

In this manner, the seat surface cover is cooled and heated. In particular, in winter, the Peltier module and the heater are switched to heat depending on the temperature condition of the seat surface cover, so that the seat surface cover comes in contact with the human body on the seat surface. The temperature of the region can be raised almost uniformly in a short time, and the temperature of the region in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

The invention described in claim 7 is particularly advantageous in claim 1 to claim 1.
5. In the seat air-conditioning apparatus according to the item 5, when heating, the heating is performed by both the Peltier module and the heater section when the temperature difference from the target set temperature is equal to or more than a predetermined value, and when the temperature difference is not more than the predetermined value, only the Peltier module is used. By having a configuration in which an operation mode control unit that switches to a mode for heating is provided,
In the heating operation, the operation mode control unit switches to a mode in which heating is performed by both the Peltier module and the heater unit when the temperature difference from the target set temperature is equal to or more than the predetermined value, and performs heating only with the Peltier module when the temperature difference is equal to or less than the predetermined value. Switch to mode.

In this way, particularly in winter, the temperature of the area in contact with the human body on the seat surface rises almost uniformly in a short time because the Peltier module and the heater are switched and heated according to the temperature condition of the seat surface cover. At the same time, the temperature of the region in contact with the human body can be substantially uniformly heated so that the user can sit comfortably.

[0030]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 shows a configuration diagram of a seat air conditioner according to Embodiment 1 of the present invention.

In FIG. 1, reference numeral 20 denotes a Peltier module for cooling or heating, and reference numeral 21 denotes a cooling / heating heat exchanger. Heat is transferred from a cooling or heating surface 22 of the Peltier module 20 to cool or heat passing air. . Reference numeral 23 denotes a waste heat heat exchanger, which is a waste heat surface 2 of the Peltier module 20.
4, heat exchange with the passing air. Reference numeral 25 denotes a blower, which is a cool / heat heat exchanger 21 and a waste heat heat exchanger 23.
Blow air to Reference numeral 26 denotes an air passage body, which is connected to the cold / hot heat exchanger 21 to form an air passage 30 for guiding the air heat exchanged by the cold / hot heat exchanger 21 to an air outlet 29 provided in the seat surface cover 28. Numeral 31 denotes a heat conductive sheet, which forms an air passage 30 in combination with the air passage body 26, cools or heats the seating portion 32 of the seat 27 by being transferred from the cold / hot heat exchanger 21, and further blows air by the blower 25. It also exchanges heat with the cooled air and cools or heats the air, and has an air blowing hole 29 for blowing out the cooled or heated air. Further, a heater 35 that generates heat by electric power is provided on the inner surface.

Although not shown, a seat air conditioner provided in the seat 32 is also provided in the backrest 33 in the same manner.

The operation and operation of the seat air-conditioning system configured as described above will be described below.

When the Peltier module 20 is operated in the summer, the cooling or heating surface 22 of the Peltier module 20 becomes a low temperature surface, and cools the cold / hot heat exchanger 21. The waste heat surface 24 of the Peltier module 20 becomes a hot surface, and the waste heat exchanger 23 becomes hot. Since the blower 25 is driven to blow air to the cold / hot heat exchanger 21 and the waste heat heat exchanger 23, the air blown to the cold / hot heat exchanger 21 is cooled and flows into the ventilation path 30. At the same time, the cooling or heating surface 22 of the Peltier module 20 transfers heat to the heat conductive sheet 31 and also cools the heat conductive sheet 31. Since the ventilation passage 30 is partially formed by the heat conduction sheet 31, the air passing through the ventilation passage 30 also exchanges heat with the heat conduction sheet 31. Further, since the heat conductive sheet 31 is provided in contact with the seat surface cover 28, the seat surface cover 28 is cooled by heat conduction. The air blows out from the air blowout holes 29 provided in the heat conductive sheet 31 and passes through the air blowout holes 29 provided in the seat surface cover 28 to blow into the seat atmosphere to cool the human body.

Next, when the operation is performed in winter, the cooling or heating surface 22 of the Peltier module 20 becomes a high-temperature surface,
The cold / heat exchanger 21 is heated. Peltier module 20
The surface 24 for waste heat has a low temperature surface, and the waste heat exchanger 23 has a low temperature. Since the blower 25 is driven to blow air to the cool / heat heat exchanger 21 and the waste heat heat exchanger 23, the air blown to the cool / heat heat exchanger 21 is heated, and
Flows into. At the same time, the cooling or heating surface 22 of the Peltier module 20 transfers heat to the heat conductive sheet 31 and also heats the heat conductive sheet 31. Since the ventilation passage 30 is partially formed from the heat conduction sheet 31, the air passing through the ventilation passage 30 also exchanges heat with the heat conduction sheet 31. The heat conductive sheet 31 is also heated by the heater unit 35.
Here, since the heat conductive sheet 31 is provided in contact with the seat surface cover 28, the seat surface cover 28 is heated by heat conduction. The air is blown into the seat atmosphere from the air blow holes 29 provided in the heat conductive sheet 31 through the air blow holes 29 provided in the seat surface cover 28, thereby heating the human body.

As described above, in this embodiment, especially in winter, the convection due to the blowing of warm air and the heat conduction sheet 3
The heat generation function of the heater section 35 is added to the heat transfer function of (1), so that the temperature of the area in contact with the human body on the seat surface can be increased almost uniformly in a short time during re-operation, and the temperature of the area in contact with the human body can be heated almost uniformly. You can sit comfortably.

(Embodiment 2) FIG. 2 is a configuration diagram of a seat air conditioner according to Embodiment 2 of the present invention.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted.

The difference from the first embodiment is that the heater section 35 is not provided on the heat conductive sheet 31,
At the time of heating, so that the heater section 35 generates heat.

The operation and operation of the seat air-conditioning system configured as described above will be described below.

During operation in winter, the cooling or heating surface 22 of the Peltier module 20 becomes a high-temperature surface, and the cooling / heating heat exchanger 21 is heated. Since the blower 25 is driven to blow air to the cold / hot heat exchanger 21 and the waste heat heat exchanger 23, the air blown to the cold / hot heat exchanger 21 is heated.
Further, since the heater 35 generates heat and heats the cold / hot heat exchanger 21, the temperature becomes higher and flows into the ventilation passage 30. In this case, the cooling / heating heat exchanger 21 is configured such that the portion heated by the heat generated by the heater unit 35 does not thermally interfere with the portion heated by the Peltier module 20. At the same time, the cooling or heating surface 22 of the Peltier module 20 transfers heat to the heat conductive sheet 31 and also heats the heat conductive sheet 31.

As described above, in this embodiment, the seat cover 28 is cooled and heated.
Since the warm air is heated by both the Peltier module 20 and the heater unit 35, the temperature of the area in contact with the human body on the seat surface during the re-operation is increased almost uniformly in a short time, and the temperature of the area in contact with the human body is almost uniform. Can be warmed up so that you can sit comfortably.

(Embodiment 3) FIG. 3 is a configuration diagram of a seat air conditioner according to Embodiment 3 of the present invention.

The components having the same reference numerals as in the first embodiment have the same structure, and a description thereof will be omitted.

The difference from the first embodiment is that the heater section 35 is not provided in the heat conductive sheet 31 but is provided in the ventilation passage 30 and the heater section 35 generates heat when heated.

The operation and operation of the seat air-conditioning system configured as described above will be described below.

When the operation is performed in winter, the surface 22 of the Peltier module 20 to be cooled or heated becomes a high temperature surface, and the cooling / heating heat exchanger 21 is heated. Since the blower 25 is driven to blow air to the cold / hot heat exchanger 21 and the waste heat heat exchanger 23, the air blown to the cold / hot heat exchanger 21 is heated and flows into the ventilation path 30. Since the heater 35 generates heat in the ventilation passage 30, the temperature of the air becomes higher. At the same time, the cooling or heating surface 22 of the Peltier module 20 transfers heat to the heat conductive sheet 31 and also heats the heat conductive sheet 31.

As described above, in this embodiment, particularly in winter, since the warm air is heated by both the Peltier module 20 and the heater section 35, the temperature of the area in contact with the human body on the seat surface at the time of re-operation is substantially reduced. In addition to raising the temperature uniformly in a short time, the temperature of the area in contact with the human body can be almost uniformly heated so that the user can sit comfortably.

(Embodiment 4) FIG. 4 is a configuration diagram of a seat air conditioner according to Embodiment 4 of the present invention.

The components having the same reference numerals as in the first embodiment have the same structure, and the description is omitted.

The difference from the first embodiment is that a part of the cooled or heated air flow is returned and the Peltier module 20 cools or heats the air flow again to expand the temperature range for cooling or heating. A return passage 36 that joins the suction passage of the blower 25 is formed in the ventilation passage 30 in a branched manner.

The operation and operation of the seat air-conditioning system configured as described above will be described below.

During operation in winter, the cooling or heating surface 22 of the Peltier module 20 becomes a hot surface, and the cooling / heating heat exchanger 21 is heated. Since the blower 25 is driven to blow air to the cold / hot heat exchanger 21 and the waste heat heat exchanger 23, the air blown to the cold / hot heat exchanger 21 is heated and flows into the ventilation path 30. Part of the airflow that has flowed into the ventilation passage 30 enters a return passage 36 branched from the ventilation passage 30. Since the return passage merges with the suction passage of the blower 25, the airflow exiting the return passage 36 enters the blower 25, is conveyed to the Peltier module 20, is heated again, and the temperature range for heating is expanded. And become hotter. And ventilation passage 30
From the air outlet 29 and blows out. At the same time, the cooling or heating surface 22 of the Peltier module 20 transfers heat to the heat conductive sheet 31 and also heats the heat conductive sheet 31.

As described above, in this embodiment, the seat cover 28 is cooled and heated.
In order to return a part of the heated airflow and to increase the temperature range of the heating by the Peltier module 20 again, the temperature of the area in contact with the human body on the seat surface at the time of restarting is increased almost uniformly in a short time. In addition, the temperature of the region in contact with the human body can be almost uniformly heated so that the user can sit comfortably.

(Embodiment 5) FIG. 5 is a control diagram of an air conditioner for a seat according to Embodiments 1 to 4 of the present invention. In the figure, reference numeral 37 denotes an operation control unit, and based on an instruction from the operation unit or the operation instruction unit 38, when cooling the surface on the side where the person sits, cooling is performed by the Peltier module 20,
When heating is performed, the mode is switched between a mode in which heating is performed only by the Peltier module 20 and a mode in which heating is performed by both the Peltier module 20 and the heater unit 35 or a mode in which heating is performed only by the heater unit 35.

The operation and operation of the seat air-conditioning system configured as described above will be described below.

When cooling, the operation mode control unit 37 performs cooling with the Peltier module 20, and when heating, the operation mode control unit 37 performs heating with the Peltier module 20 alone, A mode in which heating is performed by both the heater unit 35 and a mode in which heating is performed only by the heater unit 35 is switched.

As described above, in this embodiment, the seat cover 28 is cooled and heated.
Depending on the temperature condition of the seat surface cover 28, the Peltier module 20 and the heater unit 35 are switched and heated.
The temperature of the area in contact with the human body on the seat surface can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

(Embodiment 6) FIG. 6 is an operation explanatory diagram in the case where a new function is added to the control device of Embodiment 5 described above.

The operation mode control unit according to the sixth embodiment, when heating the surface on which the person sits on the seat, as shown in FIG. 6, in the A range where the temperature difference from the target set temperature is equal to or greater than a predetermined value. A mode in which heating is performed by both the module 20 and the heater unit 35.
It is configured to switch to a mode in which heating is performed only by the user.

The operation and operation of the seat air-conditioning system configured as described above will be described below. In the heating operation, the operation mode control unit 37 switches to a mode in which heating is performed by both the Peltier module 20 and the heater unit 35 when the temperature difference from the target set temperature is equal to or more than a predetermined value. The mode is switched to the mode in which heating is performed with only 20.

As described above, in this embodiment, particularly in winter, the Peltier module 20 and the heater section 35 are switched and heated according to the temperature condition of the seat surface cover 28, so that the area of the seat surface in contact with the human body is heated. The temperature can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

[0064]

As described above, according to the present invention, the seat surface cover has a heating function of the heater part in addition to the convection caused by the blowing of warm air and the heat transfer by the heat conductive sheet, especially in winter, so that the seat surface cover is provided at the time of re-operation. The temperature of the surface area in contact with the human body can be raised almost uniformly in a short time, and the temperature of the area in contact with the human body can be heated almost uniformly so that the user can sit comfortably.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a seat air conditioner according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a seat air conditioner according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a seat air conditioner according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a seat air conditioner according to a fourth embodiment of the present invention.

FIG. 5 is a control diagram of a seat air conditioner used in each embodiment of the present invention.

FIG. 6 is an operation explanatory diagram of a control device according to a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram of a conventional seat air conditioner.

[Explanation of symbols]

 REFERENCE SIGNS LIST 20 Peltier module 21 Cold / heat heat exchanger 22 Surface to be cooled or heated 23 Waste heat heat exchanger 24 Surface to waste heat 25 Blower 26 Ventilation body 27 Seat 28 Seat surface cover 29 Air outlet 30 Ventilation passage 31 Heat conduction sheet 32 Seating part 33 Backrest part 34 Surface on which person sits 35 Heater part 36 Return passage 37 Operation mode control part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shintaro Nozawa 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. F term (reference) 3B084 JF00 JG03 JG06

Claims (7)

[Claims] 1. A Peltier module, a heat conduction sheet for transmitting cold and hot air exchanged with the Peltier module to a seat surface cover, a ventilation path for blowing cool and hot air from the seat surface sheet, and heat applied to the seat surface cover together with the Peltier module. And a heater for blowing hot air. 2. A Peltier module for cooling or heating, a heat exchanger for cooling or heating air passing therethrough from a cooling or heating surface of the Peltier module, and a waste heat for the Peltier module. A waste heat heat exchanger that is heat-transferred from the surface to be exchanged with the passing air, and a blower that blows air to at least the cold / hot heat exchanger,
An air passage body that is connected to the cold / hot heat exchanger to form an air passage that guides the air that has been heat-exchanged by the cold / hot heat exchanger to an air outlet provided in the seat, and heat is applied to the seat surface cover together with the Peltier module. An air conditioner for a seat having a heater for transmitting or blowing out hot air. 3. The air conditioner for a seat according to claim 1, wherein the heater is provided in the cold / hot heat exchanger to generate heat when heated. 4. The air conditioner for a seat according to claim 1, wherein the heater is provided in a ventilation path to generate heat when heated. 5. The air passage according to any one of claims 2 to 4, wherein the return passage branches off into a return passage that joins the suction passage of the blower.
Item. 6. A mode in which cooling is performed by the Peltier module during cooling, and a mode in which heating is performed only by the Peltier module during heating, a mode in which heating is performed by both the Peltier module and the heater, and a mode in which heating is performed only by the heater. The air conditioner for a seat according to any one of claims 1 to 5, further comprising an operation mode control unit configured to switch the mode to a mode in which temperature is set. 7. A mode in which heating is performed by both the Peltier module and the heater section when the temperature difference from the target set temperature is equal to or more than a predetermined value, and heating is performed only by the Peltier module when the temperature difference is equal to or more than the predetermined value. The air conditioner for a seat according to any one of claims 1 to 5, further comprising an operation mode control unit that switches the operation mode.