JP2020203648A - Seat temperature control system - Google Patents

Abstract

To provide a seat temperature control system capable of solving at least one of a problem in which cooling of an occupant becomes excessive and a problem in which heating of the occupant becomes excessive.SOLUTION: A seat temperature control system 1 includes a seat cushion 100, a seat back 200, and a control device 20. At least one of the seat cushion 100 and the seat back 200 has bodies 110 and 210, air blowers 130 and 230, and temperature adjustment members 140 and 240. The control device 20 drives the air blowers 130 and 230 and the temperature adjustment members 140 and 240 so that a seat temperature becomes a target temperature when receiving a first cooling signal for instructing the execution of either one of an air cooling operation and a cold air operation. The control device drives the air blowers 130 and 230 and the temperature adjustment members 140 and 240 so that the seat temperature becomes a high correction temperature to be a temperature higher than the target temperature when receiving a second cooling signal for instructing the execution of both of the air cooling operation and the cold air operation.SELECTED DRAWING: Figure 1

Description

The present invention relates to a seat temperature control system.

Conventionally, a seat having an air conditioning function is known. For example, Japanese Patent Application Laid-Open No. 2016-216001 (hereinafter referred to as "Patent Document 1") includes a seat cushion in which an intake port is provided on a seat surface and an exhaust port is provided on a side portion and a front portion. For vehicles equipped with a seat back having an intake port on the backrest surface and exhaust ports on the sides and the upper part, and a guide duct for guiding the air conditioning air generated by the air conditioner to the seat cushion and the seat back. The sheet is disclosed. The seat cushion has a blower that forms an air flow from the intake port on the seat surface to the front exhaust port and the side exhaust port. Further, a heater is provided between the pad of the seat cushion and the portion of the seat cover that constitutes the seat surface. The seat back has a blower that forms an air flow from the intake port on the backrest surface to the upper exhaust port and the side exhaust port. Further, a heater is provided between the pad of the seat back and the portion of the seat cover that constitutes the backrest surface.

In the vehicle seat described in Patent Document 1, for example, when the occupant feels hot, the blower forms an air flow from the intake port to each exhaust port, and the air conditioning air (cold air) introduced from the air conditioner through the guide duct. ) Is supplied from each exhaust port, while when the occupant feels cold, the heater is driven and the air conditioning air (warm air) introduced from the air conditioner is supplied from each exhaust port through the guide duct. Operation is performed.

Japanese Unexamined Patent Publication No. 2016-216001

In the vehicle seat described in Patent Document 1, if the operation is performed when the occupant feels hot, the occupant may be excessively cooled (when the occupant feels cold), and conversely, when the occupant feels cold. When the operation when feeling is performed, the occupant may be overheated (the occupant may feel hot).

An object of the present invention is to provide a seat temperature control system capable of solving at least one of excessive cooling of an occupant and excessive heating of an occupant.

The seat temperature control system according to one aspect of the present invention is arranged indoors, and includes a seat cushion that constitutes a seat, a seat back that supports the back of an occupant seated on the seat cushion, a control device, and the like. The seat cushion and at least one member of the seat back are provided with a support surface intake port provided on a support surface that supports the occupant and an intake / exhaust port of another portion provided on a portion different from the support surface. A supply port provided at a portion different from the port, the support surface and the other part, and capable of supplying air-conditioning air to one part of the occupant, the support surface intake port, the other part intake / exhaust port, and the supply. A main body having a flow path for connecting the ports to each other, a blower provided in the flow path, and a temperature adjusting member provided in the flow path and capable of cooling the air flow formed by the blower. The control device has an air cooling operation for forming the airflow from the support surface intake port to the other part intake / exhaust port or the supply port by driving the blower, and the other part by driving the blower. One of the cold air operation of forming the airflow from the intake / exhaust port to the supply port and supplying the cold air from the supply port by driving the temperature adjusting member so that the airflow is cooled. Upon receiving the first cooling signal instructing the execution of the above, the blower and the temperature adjusting member are driven so that the seat temperature, which is the temperature of at least one of the members, becomes the target temperature, and the air cooling operation and the cold air operation are performed. Upon receiving the second cooling signal instructing the execution of both operations, the blower and the temperature adjusting member are driven so that the seat temperature becomes a high correction temperature which is a temperature higher than the target temperature.

In this seat temperature control system, when both the air cooling operation and the cold air operation are executed, the corrected temperature is higher than the target temperature of the seat temperature when either the air cooling operation or the cold air operation is executed. Since the blower and the temperature adjusting member are driven in this way, excessive cooling of the occupant (the occupant feels cold) is suppressed.

Further, the seat temperature control system according to another aspect of the present invention is arranged indoors and controls a seat cushion constituting the seat portion and a seat back supporting the back portion of the occupant seated on the seat cushion. The device is provided, and at least one member of the seat cushion and the seat back is provided at a portion different from the support surface intake port provided on the support surface for supporting the occupant and the support surface. A main body having a supply port capable of supplying air-conditioning air to one part of an occupant, a support surface intake port, and a flow path connecting the supply ports to each other, and the support surface provided in the main body. The control includes a heater for heating, a blower provided in the flow path, and a temperature adjusting member provided in the flow path and capable of heating the airflow formed by the blower. The device has either a heater operation for heating the support surface by driving the heater or a warm air operation for supplying warm air from the supply port by driving both the blower and the temperature adjusting member. Upon receiving the first heating signal instructing the execution of the operation, the heater, the blower, and the temperature adjusting member are driven so that the seat temperature, which is the temperature of at least one of the members, becomes the target temperature, and the heater operation is performed. When the second heating signal instructing the execution of both of the warm air operation and the warm air operation is received, the heater, the blower, and the blower are set so that the seat temperature becomes a low correction temperature which is a temperature lower than the target temperature. Drives the temperature control member.

In this seat temperature control system, when both the heater operation and the warm air operation are executed, the low correction temperature lower than the target temperature of the seat temperature when executing either the heater operation or the warm air operation is performed. Since the heater, the blower, and the temperature adjusting member are driven so as to be, the excessive heating of the occupant (the occupant feels hot) is suppressed.

Further, the seat temperature control system according to another aspect of the present invention is arranged indoors and controls the seat cushion constituting the seat portion and the seat back supporting the back portion of the occupant seated on the seat cushion. The device is provided, and at least one member of the seat cushion and the seat back is provided at a support surface intake port provided on a support surface that supports the occupant and at a portion different from the support surface. A part intake / exhaust port, a supply port provided at a portion different from the support surface and the other part and capable of supplying air-conditioning air to one part of the occupant, the support surface intake port, and the other part intake / exhaust port. A main body having a flow path for connecting the supply ports to each other, a heater provided in the main body for heating the support surface, a blower provided in the flow path, and the flow path. The control device is provided with a temperature adjusting member capable of cooling and heating the airflow formed by the blower, and the control device sucks the other part from the support surface intake port by driving the blower. The temperature so that the air cooling operation for forming the airflow toward the exhaust port or the supply port and the driving of the blower form the airflow from the other intake / exhaust port toward the supply port and the airflow is cooled. Upon receiving the first cooling signal instructing the execution of either one of the cold air operation of supplying cold air from the supply port by driving the adjusting member, the seat temperature, which is the temperature of at least one of the members, is changed. When the blower and the temperature adjusting member are driven so as to reach the target temperature and a second cooling signal instructing the execution of both the air cooling operation and the cold air operation is received, the seat temperature becomes higher than the target temperature. By driving the blower and the temperature adjusting member so as to have a high correction temperature, which is a high temperature, and heating the support surface by driving the heater, and by driving both the blower and the temperature adjusting member. Upon receiving the first heating signal instructing the execution of either one of the hot air operation for supplying hot air from the supply port, the heater and the blower so that the sheet temperature becomes the target temperature. And when the second heating signal for driving the temperature adjusting member and instructing the execution of both the heater operation and the warm air operation is received, the seat temperature is a temperature lower than the target temperature. The heater, the blower, and the temperature adjusting member are driven so as to reach a temperature.

In this seat temperature control system, when both the air cooling operation and the cold air operation are executed, the corrected temperature is higher than the target temperature of the seat temperature when either the air cooling operation or the cold air operation is executed. Since the blower and the temperature control member are driven in this way, excessive cooling of the occupant (the occupant feels cold) is suppressed, and when both the heater operation and the warm air operation are performed, the heater is used. The heater, blower, and temperature control member are driven so that the seat temperature becomes a low correction temperature lower than the target temperature when performing either the operation or the warm air operation, so that the occupant is overheated. (The occupants feel hot) is suppressed.

Further, in the seat temperature control system, the control device includes a storage unit that stores comfortable temperature information indicating the relationship between the temperature in the room and the comfortable seat temperature, which is the seat temperature at which the occupant feels comfortable. Having the heater, the blower, and a processing unit that controls the temperature adjusting member so that the target temperature becomes the comfortable seat temperature determined based on the comfortable temperature information and the temperature in the room. Is preferable.

By doing so, the above effect can be effectively obtained.

In this case, the comfortable temperature information includes a plurality of maps showing the relationship between the indoor temperature and the comfortable seat temperature, which are different from each other depending on the outdoor temperature, and the processing unit includes the outdoor. The heater, the heater, so that the comfortable seat temperature determined based on one map selected from the plurality of maps based on the temperature of the room and the temperature in the room becomes the target temperature. It is preferable to control the blower and the temperature adjusting member.

In this way, an appropriate map is selected according to the outdoor temperature, so that a more comfortable seat temperature is set as the target temperature.

Further, when the outdoor temperature is equal to or lower than the reference outdoor temperature and the indoor temperature is equal to or lower than the first reference indoor temperature, the control device drives the heater so that the seat temperature becomes the target temperature. When the outdoor temperature is equal to or lower than the reference outdoor temperature and the indoor temperature is higher than the second reference indoor temperature higher than the first reference indoor temperature, the seat temperature is lower than the target temperature. It is preferable to drive the heater so that the temperature becomes high.

In this way, excessive heating of the occupant is suppressed.

Further, the processing unit receives the first cooling signal or the second cooling signal, and the temperature in the room is equal to or higher than a predetermined temperature, and the temperature in the room is lower than the predetermined temperature. It is preferable to drive the blower and the temperature adjusting member so that the flow rate is larger than the flow rate of the air flow.

In this embodiment, when the indoor temperature is equal to or higher than the predetermined temperature, the heat of vaporization taken from the occupant by the airflow formed by the blower is larger than that when the indoor temperature is lower than the predetermined temperature. Goes down. Therefore, by setting the predetermined temperature to the room temperature at which the seat temperature is unlikely to drop to the target temperature depending on the air flow formed by the blower, the sensible temperature of the occupant can be effectively lowered even when the temperature is higher than that temperature. Is possible.

As described above, according to the present invention, it is possible to provide a seat temperature control system capable of solving at least one of excessive cooling of the occupant and excessive heating of the occupant. it can.

It is a figure which shows schematic the whole structure of the sheet temperature control system of one Embodiment of this invention. It is a figure which shows the 1st table of the comfortable temperature information. It is a figure which shows the 2nd table of the comfortable temperature information. It is a figure which shows the 3rd table of the comfortable temperature information. It is a table which shows the target temperature of the processing part in a cold season. It is a table which shows the target temperature of the processing part in a hot season. It is a figure which shows the modification of the 2nd table.

Embodiments of the present invention will be described with reference to the drawings. In the drawings referred to below, the same or corresponding members are given the same number.

FIG. 1 is a diagram schematically showing an overall configuration of a seat temperature control system according to an embodiment of the present invention. As shown in FIG. 1, the seat temperature control system 1 of the present embodiment includes a seat 10 and a control device 20. The seat temperature control system 1 can be mounted on a vehicle, for example.

The seat 10 functions as a vehicle seat, particularly a vehicle seat. The seat 10 is arranged in the vehicle interior. The seat 10 has a seat cushion 100, a seat back 200, and a headrest 300.

The seat cushion 100 constitutes a seat portion. The seat cushion 100 includes a cushion body 110, a cushion heater 120, a cushion side blower 130, a cushion side temperature adjusting member 140, and a cushion side switching valve 150. Hereinafter, the cushion main body 110 is referred to as "main body 110", the cushion heater 120 is referred to as "heater 120", the cushion side blower 130 is referred to as "blower 130", and the cushion side temperature adjusting member 140 is referred to as "temperature adjusting member". It is described as "140", and the cushion side switching valve 150 is described as "switching valve 150".

The main body 110 has a cushion frame that forms the skeleton of the seat cushion 100, a cushion pad attached to the cushion frame, and a cushion cover that covers the cushion pad. The main body 110 has a seat surface 111, a front portion 112, another portion 113, and a cushion flow path 114. Hereinafter, the cushion flow path 114 will be referred to as "flow path 114".

The seat surface 111 is a support surface that supports the buttocks of the occupant. The seat surface 111 is provided with a seat surface intake / exhaust port (not shown) as a support surface intake port. In FIG. 1, the seating surface 111 when the occupant H is not seated is shown by a chain double-dashed line.

The front portion 112 is composed of a front end portion of the main body 110. The front portion 112 is provided with a supply port 112h capable of supplying air-conditioned air toward a part of the occupant H (near the calf).

The other portion 113 is a portion of the main body 110 different from the seat surface 111 and the front portion 112. In the present embodiment, the other portion 113 is configured at the lower portion of the main body 110. The other portion 113 is provided with an intake / exhaust port (not shown) of the other portion.

The flow path 114 communicates the seat surface intake port, the intake / exhaust port of the other portion, and the supply port 112h with each other. The flow path 114 is formed in the cushion pad.

The heater 120 heats the main body 110. The heater 120 is provided in the main body 110. Specifically, the heater 120 is arranged between the cushion pad and a portion of the cushion cover that constitutes the seat surface 111. That is, the heater 120 heats the occupant H via the seat surface 111. The heater 120 is formed in a sheet shape. The heater 120 has a base material (not shown) and a heater wire (not shown). The base material is made of resin or the like and is formed in the form of a flexible sheet. The base material is breathable. The heater wire is arranged on the substrate. The heater wire generates heat when the heater wire is energized. The heater wire is made of a nichrome wire or the like. Since the amount of heat generated by the heater 120 changes according to the amount of energization, the amount of heating of the main body 110 can be adjusted.

The blower 130 is provided in the flow path 114. The blower 130 generates an air flow from the seat surface intake port toward the other portion intake / exhaust port or the supply port 112h or an air flow from the other portion intake / exhaust port toward the supply port 112h. The rotation speed of the blower 130 is configured to be adjustable.

The temperature adjusting member 140 is a member capable of cooling and heating the air flow in the flow path 114. The temperature adjusting member 140 is configured so that the cooling amount and the heating amount of the air flow can be adjusted. Examples of such a temperature adjusting member 140 include a Peltier element and the like. The temperature adjusting member 140 may be capable of cooling or heating the airflow in the flow path 114. When only heating of the air flow in the flow path 114 is possible, a PTC element or the like may be used as the temperature adjusting member 140. The temperature adjusting member 140 is provided at a portion of the flow path 114 between the blower 130 and the supply port 112h.

The switching valve 150 is provided in the flow path 114. Specifically, the switching valve 150 is provided at a portion of the flow path 114 between the seat surface intake port and the blower 130. The switching valve 150 can be switched between a support surface side shutoff posture (a posture shown in FIG. 1) and a support surface side open posture. The switching valve 150 is configured to be rotatable around a rotation shaft (not shown) between a support surface side shutoff posture and a support surface side open posture.

The support surface side shutoff posture is a posture in which the communication between the seat surface intake port and the blower 130 is cut off, and the other portion intake / exhaust port and the supply port 112h are communicated with each other. By driving the blower 130 with the switching valve 150 in the support surface side shutoff posture, an air flow from the intake / exhaust port of the other portion to the supply port 112h is formed.

The support surface side open posture is a posture in which the seat surface intake port and the other portion intake / exhaust port or the supply port 112h are communicated with each other. The switching valve 150 cuts off the communication between the intake / exhaust port of the other portion and the blower 130 in the open posture on the support surface side. However, the switching valve 150 may communicate the intake / exhaust port of the other portion with the supply port 112h in the support surface side open posture. By driving the blower 130 with the switching valve 150 in the support surface side open posture, an air flow from the seat surface intake port to the other portion intake / exhaust port or the supply port 112h is formed.

The seat back 200 supports the back of the occupant H seated on the seat cushion 100. The seat back 200 includes a back main body 210, a back heater 220, a back side blower 230, a back side temperature adjusting member 240, and a back side switching valve 250. Hereinafter, the back main body 210 is referred to as "main body 210", the back heater 220 is referred to as "heater 220", the back side blower 230 is referred to as "blower 230", and the back side temperature adjusting member 240 is referred to as "temperature adjusting member". It is described as "240", and the back side switching valve 250 is described as "switching valve 250".

The main body 210 has a back frame that forms the skeleton of the seat back 200, a back pad attached to the back frame, and a back cover that covers the back pad. The main body 210 has a backrest surface 211, an upper portion 212, another portion 213, and a cushion flow path 214. Hereinafter, the cushion flow path 214 will be referred to as "flow path 214".

The backrest surface 211 is a surface that supports the back of the occupant. The backrest surface 211 is provided with a backrest surface intake / exhaust port (not shown) as a support surface intake port.

The upper portion 212 is composed of an upper end portion of the main body 210. The upper portion 212 is provided with a supply port 212h capable of supplying air-conditioned air toward a part (neck) of the occupant H.

The other portion 213 is a portion of the main body 210 different from the backrest surface 211 and the upper portion 212. In the present embodiment, the other part 213 is formed by the rear part of the main body 210. The other part 213 is provided with another part intake / exhaust port (not shown).

The flow path 214 communicates the backrest surface intake port, the intake / exhaust port of the other portion, and the supply port 212h with each other. The flow path 214 is formed in the back pad.

The heater 220 heats the main body 210. The heater 220 is provided in the main body 210. Specifically, the heater 220 is arranged between the back pad and the portion of the back cover that constitutes the backrest surface 211. That is, the heater 220 heats the occupant H via the backrest surface 211. Since the configuration of the heater 220 is the same as the configuration of the heater 120, the description thereof will be omitted.

The blower 230 is provided in the flow path 214. The blower 230 generates an air flow from the backrest surface intake port toward the other portion intake / exhaust port or the supply port 212h or an air flow from the other portion intake / exhaust port toward the supply port 212h. The rotation speed of the blower 230 is configured to be adjustable.

The temperature adjusting member 240 is a member capable of cooling and heating the air flow in the flow path 214. Since the configuration of the temperature adjusting member 240 is the same as the configuration of the temperature adjusting member 140, the description thereof will be omitted. The temperature adjusting member 240 is provided at a portion of the flow path 214 between the blower 230 and the supply port 212h.

The switching valve 250 is provided in the flow path 214. Specifically, the switching valve 250 is provided at a portion of the flow path 214 between the backrest surface intake port and the blower 230. The switching valve 250 can be switched between a support surface side shutoff posture (a posture shown in FIG. 1) and a support surface side open posture. The switching valve 250 is configured to be rotatable around a rotation shaft (not shown) between a support surface side shutoff posture and a support surface side open posture.

The support surface side blocking posture is a posture in which the communication between the backrest surface intake port and the blower 230 is cut off, and the other portion intake / exhaust port and the supply port 212h are communicated with each other. By driving the blower 230 with the switching valve 250 in the support surface side shutoff posture, an air flow from the intake / exhaust port of the other portion to the supply port 212h is formed.

The support surface side open posture is a posture in which the backrest surface intake port and another portion intake / exhaust port or supply port 212h are communicated with each other. The switching valve 250 cuts off the communication between the intake / exhaust port of the other portion and the blower 230 in the open posture on the support surface side. However, the switching valve 250 may communicate the intake / exhaust port of the other portion with the supply port 212h in the support surface side open posture. By driving the blower 230 with the switching valve 250 in the support surface side open posture, an air flow is formed from the backrest surface intake port to the other portion intake / exhaust port or the supply port 212h.

The headrest 300 is provided on the upper part of the seat back 200 and receives the head of the occupant H.

The control device 20 includes a receiving unit 21, a storage unit 22, a determination unit 23, and a processing unit 24.

The receiving unit 21 receives various information. The various information includes the seat temperature, the temperature of the occupant H, the indoor temperature, the outdoor temperature, and the input information.

The sheet temperature is the surface temperature of the sheet 10. This sheet temperature is detected by a temperature sensor 31 capable of detecting the temperature. Although the temperature sensor 31 is shown in front of the seat cushion 100 in FIG. 1, it is actually provided at a position where the surface temperature of the seat 10 can be detected.

The temperature of the occupant H is detected by the temperature sensor 32 that can detect the temperature. Examples of the temperature sensor 32 include a thermo camera. The temperature sensor 32 is provided, for example, in front of the occupant H.

The temperature in the room is detected by the temperature sensor 33 that can detect the temperature. The temperature sensor 33 is provided, for example, on the panel 2 arranged in front of the seat 10. More specifically, the panel 2 is provided with an operation unit 2a, and the temperature sensor 33 is provided below the operation unit 2a on the panel 2. Further, an air conditioner 3 is provided in the panel 2. The air-conditioning air from the air-conditioning device 3 is blown toward the occupant H from an outlet (not shown) provided on the panel 2.

The outdoor temperature is detected by a temperature sensor 34 capable of detecting the temperature. The temperature sensor 34 is provided, for example, at the front portion of the vehicle body (a portion that is less affected by the heat of the engine and the heat from the road surface).

The input information is the information input by the operation unit 2a. This information includes operation information of the heaters 120 and 220 (instruction of drive or stop and set temperature), operation information of the blowers 130 and 230 (instruction of drive or stop and rotation speed), and temperature adjusting members 140 and 240. Includes operation information (drive or stop instructions and set temperature).

The storage unit 22 stores comfortable temperature information indicating the relationship between the indoor temperature (detected value of the temperature sensor 33) and the comfortable seat temperature, which is the seat temperature at which the occupant H feels comfortable. Comfortable temperature information includes multiple maps. In the present embodiment, as shown in FIGS. 2 to 4, the plurality of maps include a first map M1, a second map M2, and a third map M3.

The first map M1 shows the relationship between the indoor temperature and the comfortable seat temperature when the outdoor is cold. The "outdoor cold time" means a time when the outdoor temperature is equal to or lower than the reference outdoor temperature (for example, 23 ° C.).

The second map M2 shows the relationship between the indoor temperature and the comfortable seat temperature during the period when the outdoor is insensitive. "The time when the outdoor is insensitive" means the time when the outdoor temperature is the insensitive temperature (for example, 23 ° C. to 27 ° C.).

The third map M3 shows the relationship between the indoor temperature and the comfortable seat temperature when the outdoor is hot. The “outdoor hot time” means a time when the outdoor temperature is equal to or higher than the set outdoor temperature (for example, 27 ° C.) higher than the reference outdoor temperature.

In each map M1 to M3, the temperature range A is the temperature range in which the occupant H feels cold, the temperature range B is the temperature range in which the occupant H feels cool, and the temperature range C is the temperature range in which the occupant H feels insensitive. It is a temperature range at a certain time, the temperature range D is the temperature range in which the occupant H feels warm, and the temperature range E is the temperature range in which the occupant H feels hot. As can be seen in the maps M1 to M3, the temperature range of each temperature range A to E is different depending on the outdoor temperature.

The storage unit 22 transmits to the determination unit 23 the information shown in one map selected from the plurality of maps based on the outdoor temperature (detected value of the temperature sensor 34).

The determination unit 23 determines based on the signal received from the reception unit 21 (indoor temperature) and the comfortable temperature information stored in the storage unit 22 (a specific map selected based on the outdoor temperature). Set the comfort seat temperature as the target temperature.

The determination unit 23 includes signals received from the reception unit 21 (outdoor temperature, indoor temperature, occupant H temperature, heaters 120, 220, blowers 130, 230, and operating conditions of temperature adjusting members 140, 240). , The control contents of the heaters 120, 220, the blowers 130, 230 and the temperature adjusting members 140, 240 are determined based on the control table, and a control signal indicating the control contents is sent to the processing unit 24.

The control table is shown in FIGS. 5 and 6. FIG. 5 shows a control table when the outdoor is cold, and FIG. 6 shows a control table when the outdoor is hot. Hereinafter, the determination unit 23 will be described first with reference to the control table shown in FIG.

In “ACS” in FIG. 5, warm air is supplied from the supply ports 112h and 212h (the switching valves 150 and 250 are in the support surface side shutoff posture, and an air flow from the other intake port to the supply ports 112h and 212h is formed. It means that the blowers 130 and 230 are driven and the temperature adjusting members 140 and 240 are heated). "Neck" means the supply of warm air from the supply port 212h. “Foot” means the supply of warm air from the supply port 112h.

"Indoor cold" means that the indoor temperature is equal to or lower than the first reference indoor temperature (for example, 23 ° C), and "indoor hot" means that the indoor temperature is the second reference indoor temperature (for example, 27 ° C). It means the above state.

When the occupant is "cold", it means that the temperature of the occupant H is, for example, 23 ° C. or lower, and when the occupant is "hot", it means that the temperature of the occupant H is, for example, 27 ° C. or higher.

“◯” means that the heaters 120 and 220, the blowers 130 and 230, and the temperature adjusting members 140 and 240 are controlled so that the seat temperature becomes the target temperature (comfortable seat temperature).

"○ + correction 1" means that the sheet temperature is the target temperature after passing through a state where the sheet temperature is a low target temperature lower than the target temperature (for example, the target temperature -2 ° C), or a few minutes after that state. It means that the heaters 120 and 220, the blowers 130 and 230, and the temperature adjusting members 140 and 240 are controlled so as to return to.

"○ + correction 2" controls the heaters 120, 220, the blowers 130, 230, and the temperature adjusting members 140, 240 so that the seat temperature becomes a low correction temperature lower than the target temperature (for example, the target temperature -1 ° C.). Means to do.

In "○ + correction 3", the heaters 120, 220 and the blowers 130, 230 are set so that the seat temperature returns to the low correction temperature after passing through the state where the seat temperature is the low target temperature or after a few minutes from that state. And it means to control the temperature adjusting members 140, 240.

When the determination unit 23 receives the input information including the first heating signal instructing the execution of either the heater operation or the warm air operation from the reception unit 21, the heater 120 so that the seat temperature becomes the target temperature. , 220, a control signal indicating that the blowers 130, 230 and the temperature adjusting members 140, 240 are driven is sent to the processing unit 24, and a second heating signal instructing the execution of both the heater operation and the warm air operation is sent. When the input information including the input information is received from the receiving unit 21, a control signal indicating that the heaters 120 and 220, the blowers 130 and 230 and the temperature adjusting members 140 and 240 are driven so that the seat temperature becomes a low correction temperature is sent to the processing unit 24. send.

The heater operation is an operation of heating the support surface (seat surface 111, backrest surface 211) by driving the heaters 120 and 220. The hot air operation is an operation of supplying warm air from the supply ports 112h and 212h by driving both the blowers 130 and 230 and the temperature adjusting members 140 and 240.

For example, as shown by the broken line A1 in FIG. 5, the outdoor is a cold time, the indoor is a cold state, the occupant H is a cold state, and the operation of only the back heater 220 is executed. When the input information including the first heating signal to be instructed is received from the receiving unit 21, the determination unit 23 transmits a control signal for driving the back heater 220 to the target temperature to the processing unit 24. To do. On the other hand, as shown by the broken line A2 in FIG. 5, the outdoor is cold, the indoor is cold, the occupant H is cold, and the back heater 220 and ACS (neck). When the input information including the second heating signal instructing the execution of both of the above is received from the receiving unit 21, the determining unit 23 determines the back heater 220 and the back side blower 230 so that the seat temperature becomes a low correction temperature. And the control signal for driving the back side temperature adjusting member 240 is transmitted to the processing unit 24.

Further, as shown by the alternate long and short dash line C1 in FIG. 5, the outdoor temperature is cold (the outdoor temperature is below the reference outdoor temperature) and the indoor temperature is cold (the indoor temperature is below the first reference indoor temperature). When the input information including the fact that the occupant H is in a hot state, the first heating signal instructing the execution of the operation of only the heaters 120 and 220, and the input information including the occupant H are received from the receiving unit 21, the determination unit 23 receives the input information. , A control signal for driving the back heater 220 is transmitted to the processing unit 24 so that the seat temperature becomes the target temperature. On the other hand, as shown by the alternate long and short dash line C2 in FIG. 5, the outdoor is cold, the indoor is hot (the indoor temperature is equal to or higher than the second reference indoor temperature), and the occupant H is hot. When input information including the presence and the first heating signal instructing the execution of the operation of only the heaters 120 and 220 is received from the receiving unit 21, the determination unit 23 is in a state where the seat temperature is a low target temperature. A control signal for driving the heaters 120 and 220 is transmitted to the processing unit 24 so that the seat temperature returns to the target temperature after passing through the above or a few minutes after the state.

Next, the determination unit 23 will be described with reference to the control table shown in FIG.

In the "blower" in FIG. 6, the switching valves 150 and 250 are set to the support surface side open posture, and the blowers 130 and 230 are formed so that the airflow from the support surface intake port to the other intake / exhaust port or the supply ports 112h and 212h is formed. Means to drive. “ACS (cold air)” means the supply of cold air from the supply ports 112h and 212h. “Neck” means the supply of cold air from the supply port 212h. “Foot” means the supply of cold air from the supply port 112h. In the "ACS (single)", the blowers 130 and 230 are driven so that the switching valves 150 and 250 are in the support surface side shutoff posture and the airflow from the intake port of the other portion to the supply ports 112h and 212h is formed. , Means that the temperature adjusting members 140, 240 are cooled. The ACS ("ACS (neck)", "ACS (foot)" and "ACS (neck / foot)") driven together with the blower has the switching valves 150 and 250 in the support surface side open posture, and the support surface. This means that the blowers 130 and 230 are driven so that the airflow from the intake port to the supply ports 112h and 212h is formed, and the temperature adjusting members 140 and 240 are cooled.

"Indoor cold" means that the indoor temperature is equal to or lower than the first reference indoor temperature (for example, 23 ° C), and "indoor hot" means that the indoor temperature is the second reference indoor temperature (for example, 27 ° C). It means the above state.

When the occupant is "cold", it means that the temperature of the occupant H is, for example, 23 ° C. or lower, and when the occupant is "hot", it means that the temperature of the occupant H is, for example, 27 ° C. or higher.

“◯” means that the blowers 130 and 230 and the temperature adjusting members 140 and 240 are controlled so that the seat temperature becomes the target temperature (comfortable seat temperature).

"○ + correction 1" means that the sheet temperature reaches the target temperature after passing through a state where the sheet temperature is a high target temperature higher than the target temperature (for example, the target temperature + 2 ° C.), or a few minutes after that state. It means controlling the blowers 130, 230 and the temperature adjusting members 140, 240 so as to return.

“◯ + correction 2” means controlling the blowers 130 and 230 and the temperature adjusting members 140 and 240 so that the seat temperature becomes a high correction temperature higher than the target temperature (for example, the target temperature + 1 ° C.).

"○ + correction 3" is the blowers 130, 230 and the temperature adjusting member 140 so that the sheet temperature returns to the high correction temperature after passing through the state where the sheet temperature is the high target temperature or after a few minutes from that state. , 240 is to be controlled.

When the determination unit 23 receives the input information including the first cooling signal instructing the execution of either the air cooling operation or the cold air operation from the receiving unit 21, the heaters 120 and 220 so that the seat temperature becomes the target temperature. , A control signal indicating that the blowers 130 and 230 and the temperature adjusting members 140 and 240 are driven is sent to the processing unit 24, and input information including a second cooling signal instructing execution of both air cooling operation and cold air operation is transmitted. When received from the receiving unit 21, a control signal indicating that the blowers 130 and 230 and the temperature adjusting members 140 and 240 are driven so that the seat temperature becomes a high correction temperature is sent to the processing unit 24.

The air-cooling operation is to drive the blowers 130 and 230 so that an air flow from the intake port on the support surface to the intake / exhaust ports of other parts or the supply ports 112h and 212h is formed. The cold air operation is an operation of supplying cold air from the supply ports 112h and 212h by driving both the blowers 130 and 230 and the temperature adjusting members 140 and 240.

For example, as shown by the broken line B1 in FIG. 6, the outdoor is hot, the indoor is hot, the occupant H is hot, and the operation of only the back blower 230 is executed. When the input information including the first cooling signal instructing is received from the receiving unit 21, the determination unit 23 sends a control signal for driving the back side blower 230 to the processing unit 24 so that the seat temperature becomes the target temperature. Send. On the other hand, as shown by the broken line B2 in FIG. 6, the outdoor is hot, the indoor is hot, the occupant H is hot, and the blowers 130, 230 and ACS (neck). When the input information including the second cooling signal instructing the execution of both of the original) is received from the receiving unit 21, the determining unit 23 determines the blowers 130, 230 and the back so that the seat temperature becomes a high correction temperature. A control signal for driving the side temperature adjusting member 240 is transmitted to the processing unit 24.

The processing unit 24 controls the heaters 120, 220, the blowers 130, 230, and the temperature adjusting members 140, 240 based on the control signal received from the determination unit 23. The specific seat temperature is adjusted by adjusting at least one of the energization amount of the heaters 120 and 220, the rotation speed of the blowers 130 and 230, and the set temperature of the temperature adjusting members 140 and 240.

Further, the processing unit 24 sends a signal indicating the temperature of the conditioned air formed by the air conditioner 3 to the air conditioner 3 so that the indoor temperature tends toward the temperature range C of the map selected based on the outdoor temperature. ..

As described above, in the seat temperature control system 1 of the present embodiment, when both the air cooling operation and the cold air operation are executed, the seat temperature when either the air cooling operation or the cold air operation is executed is executed. Since the blowers 130 and 230 and the temperature adjusting members 140 and 240 are driven so as to have a high correction temperature higher than the target temperature of the above, it is suppressed that the occupant H feels cold (excessive cooling of the occupant H). In addition, when performing both the heater operation and the warm air operation, the correction temperature is lower than the target temperature of the seat temperature when either the heater operation or the warm air operation is executed. Since the heaters 120 and 220, the blowers 130 and 230, and the temperature adjusting members 140 and 240 are driven, it is possible to prevent the occupant H from feeling hot (excessive heating of the occupant H).

Further, the determination unit 23 sets the comfortable seat temperature determined based on one map selected from the plurality of maps M1 to M3 based on the outdoor temperature and the indoor temperature as the target temperature. , A more comfortable seat temperature is set to the target temperature.

It should be noted that the embodiments disclosed this time are examples in all respects and should not be considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the description of the above-described embodiment, and further includes all modifications within the meaning and scope equivalent to the scope of claims.

For example, the control device 20 drives the blowers 130 and 230 and the temperature adjusting members 140 and 240 so that the seat temperature becomes a high correction temperature when performing both the air cooling operation and the cold air operation, and the heater operation. Only one of the heaters 120 and 220, the blowers 130 and 230 and the temperature adjusting members 140 and 240 is driven so that the seat temperature becomes a low correction temperature when both the operation and the warm air operation are executed. May be done.

Further, the control device 20 may control only one of the seat cushion 100 and the seat back 200.

Further, when the determination unit 23 receives input information including the first cooling signal or the second cooling signal and the indoor temperature being equal to or higher than the predetermined temperature from the receiving unit 21, the indoor temperature becomes the predetermined temperature. The blowers 130 and 230 may be driven so that the flow rate is larger than the flow rate of the air flow when the flow rate is less than, and a control signal for driving the temperature adjusting members 140 and 240 may be transmitted to the processing unit 24.

In this embodiment, when the indoor temperature is equal to or higher than the predetermined temperature, the heat of vaporization taken from the occupant H by the airflow formed by the blowers 130 and 230 is larger than that when the indoor temperature is lower than the predetermined temperature. The sensible temperature of occupant H drops. Therefore, as shown in FIG. 7, the seat temperature is set to the indoor temperature (27 ° C. in the example of FIG. 7) at which the seat temperature is unlikely to drop to the target temperature (comfortable seat temperature) depending on the airflow formed by the blowers 130 and 230. By setting the temperature, it is possible to effectively lower the sensible temperature of the occupant H even when the temperature in the room is higher than that temperature. The predetermined temperature is preferably set near the boundary between the temperature range C and the temperature range D (27 ° C. in the second map M2). Further, in FIG. 7, the actual seat temperature is shown by a solid line and the comfortable seat temperature is shown by a broken line in a range where the indoor temperature is equal to or higher than a predetermined temperature.

1 Seat temperature control system, 2 panels, 2a operation unit, 3 air conditioner, 10 seats, 20 control unit, 21 receiver, 22 storage, 23 judgment, 24 processing, 100 seat cushion, 110 cushion body, 111 seats Surface (support surface), 112 front, 112h supply port, 113 other parts, 114 cushion flow path, 120 cushion heater, 130 cushion side blower, 140 cushion side temperature control member, 150 cushion side switching valve, 200 seat back, 210 Back body, 211 backrest surface (support surface), 212 upper part, 212h supply port, 213 other parts, 214 back flow path, 220 back heater, 230 back side blower, 240 back side temperature control member, 250 back side switching valve.

Claims (9)

The seat cushions that are placed indoors and make up the seat,
A seat back that supports the back of the occupant seated on the seat cushion, and
Equipped with a control device,
At least one member of the seat cushion and the seat back is
A support surface intake port provided on a support surface that supports the occupant, an intake / exhaust port of another portion provided in a portion different from the support surface, and a portion different from the support surface and the other portion. A main body having a supply port capable of supplying conditioned air to one part of the occupant, a support surface intake port, an intake / exhaust port of the other portion, and a flow path connecting the supply ports to each other.
A blower provided in the flow path and
It has a temperature adjusting member provided in the flow path and capable of cooling the air flow formed by the blower.
The control device has an air-cooling operation for forming the airflow from the support surface intake port to the other part intake / exhaust port or the supply port by driving the blower, and the other part intake / exhaust port by driving the blower. Instructs the execution of one of the cold air operation of supplying cold air from the supply port by driving the temperature adjusting member so as to form the air flow toward the supply port and cool the air flow. Upon receiving the first cooling signal, the blower and the temperature adjusting member are driven so that the seat temperature, which is the temperature of at least one of the members, becomes the target temperature, and both the air cooling operation and the cold air operation are executed. A seat temperature control system that drives the blower and the temperature adjusting member so that the seat temperature becomes a high correction temperature which is a temperature higher than the target temperature when the second cooling signal instructing the above is received. The seat cushions that are placed indoors and make up the seat,
A seat back that supports the back of the occupant seated on the seat cushion, and
Equipped with a control device,
At least one member of the seat cushion and the seat back is
A support surface intake port provided on a support surface that supports the occupant, a supply port provided at a portion different from the support surface and capable of supplying air conditioning air to one portion of the occupant, and the support surface intake port. And a main body having a flow path for connecting the supply ports to each other.
A heater provided in the main body and heating the support surface,
A blower provided in the flow path and
It has a temperature adjusting member provided in the flow path and capable of heating the air flow formed by the blower.
The control device has either a heater operation for heating the support surface by driving the heater or a warm air operation for supplying warm air from the supply port by driving both the blower and the temperature adjusting member. Upon receiving the first heating signal instructing the execution of one operation, the heater, the blower, and the temperature adjusting member are driven so that the seat temperature, which is the temperature of at least one member, becomes the target temperature, and the temperature adjusting member is driven. Upon receiving the second heating signal instructing the execution of both the heater operation and the warm air operation, the heater and the blower so that the seat temperature becomes a low correction temperature which is a temperature lower than the target temperature. And a seat temperature control system that drives the temperature control member. The seat cushions that are placed indoors and make up the seat,
A seat back that supports the back of the occupant seated on the seat cushion, and
Equipped with a control device,
At least one member of the seat cushion and the seat back is
A support surface intake port provided on a support surface that supports the occupant, an intake / exhaust port of another portion provided in a portion different from the support surface, and a portion different from the support surface and the other portion. A main body having a supply port capable of supplying conditioned air to one part of the occupant, a support surface intake port, an intake / exhaust port of the other portion, and a flow path connecting the supply ports to each other.
A heater provided in the main body and heating the support surface,
A blower provided in the flow path and
It has a temperature adjusting member provided in the flow path and capable of cooling and heating the air flow formed by the blower.
The control device has an air-cooling operation for forming the airflow from the support surface intake port to the other part intake / exhaust port or the supply port by driving the blower, and the air cooling operation from the other part intake / exhaust port by driving the blower. Instructs the execution of one of the cold air operation of supplying cold air from the supply port by driving the temperature adjusting member so as to form the airflow toward the supply port and cool the airflow. Upon receiving the first cooling signal, the blower and the temperature adjusting member are driven so that the seat temperature, which is the temperature of at least one of the members, becomes the target temperature, and both the air cooling operation and the cold air operation are executed. Upon receiving the second cooling signal instructing, the blower and the temperature adjusting member are driven so that the seat temperature becomes a high correction temperature which is higher than the target temperature, and the support surface is driven by the drive of the heater. A first heating signal instructing the execution of either a heater operation for heating the temperature and a warm air operation for supplying warm air from the supply port by driving both the blower and the temperature adjusting member. Is received, the heater, the blower, and the temperature adjusting member are driven so that the seat temperature becomes the target temperature, and the second heating instructing the execution of both the heater operation and the warm air operation is instructed. A seat temperature control system that drives the heater, the blower, and the temperature adjusting member so that when a signal is received, the seat temperature becomes a low correction temperature which is a temperature lower than the target temperature. The control device is
A storage unit that stores comfortable temperature information indicating the relationship between the room temperature and the comfortable seat temperature, which is the seat temperature at which the occupant feels comfortable.
It has a heater, a blower, and a processing unit that controls the temperature adjusting member so that the target temperature becomes the comfortable seat temperature determined based on the comfortable temperature information and the temperature in the room. The seat temperature control system according to claim 2 or 3. The comfortable temperature information includes a plurality of maps showing the relationship between the indoor temperature and the comfortable seat temperature, which are different from each other depending on the outdoor temperature.
In the processing unit, the comfortable seat temperature determined based on one map selected from the plurality of maps based on the outdoor temperature and the indoor temperature becomes the target temperature. The seat temperature control system according to claim 4, wherein the heater, the blower, and the temperature adjusting member are controlled as described above. When the outdoor temperature is equal to or lower than the reference outdoor temperature and the indoor temperature is equal to or lower than the first reference indoor temperature, the control device drives the heater so that the seat temperature becomes the target temperature. When the outdoor temperature is equal to or lower than the reference outdoor temperature and the indoor temperature is higher than the second reference indoor temperature higher than the first reference indoor temperature, the seat temperature is regarded as a low target temperature lower than the target temperature. The seat temperature control system according to any one of claims 2 to 5, wherein the heater is driven so as to be. The control device is
A storage unit that stores comfortable temperature information indicating the relationship between the room temperature and the comfortable seat temperature, which is the seat temperature at which the occupant feels comfortable.
The first aspect of the present invention includes a processing unit that controls the blower and the temperature adjusting member so that the target temperature becomes the comfortable seat temperature determined based on the comfortable temperature information and the temperature in the room. The seat temperature control system described in. The comfortable temperature information includes a plurality of maps showing the relationship between the indoor temperature and the comfortable seat temperature, which are different from each other depending on the outdoor temperature.
In the processing unit, the comfortable seat temperature determined based on one map selected from the plurality of maps based on the outdoor temperature and the indoor temperature becomes the target temperature. The seat temperature control system according to claim 7, wherein the blower and the temperature adjusting member are controlled as described above. When the processing unit receives the first cooling signal or the second cooling signal and the temperature in the room is equal to or higher than the predetermined temperature, the processing unit receives the air flow when the temperature in the room is lower than the predetermined temperature. The seat temperature control system according to claim 7 or 8, wherein the blower is driven so as to have a flow rate larger than the flow rate, and the temperature adjusting member is also driven.

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