WO2017056921A1 - 車両用シート空調装置 - Google Patents
車両用シート空調装置 Download PDFInfo
- Publication number
- WO2017056921A1 WO2017056921A1 PCT/JP2016/076614 JP2016076614W WO2017056921A1 WO 2017056921 A1 WO2017056921 A1 WO 2017056921A1 JP 2016076614 W JP2016076614 W JP 2016076614W WO 2017056921 A1 WO2017056921 A1 WO 2017056921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- space
- communication hole
- inflow space
- open
- Prior art date
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 68
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 238000005452 bending Methods 0.000 claims description 4
- 238000007664 blowing Methods 0.000 abstract description 9
- 230000001143 conditioned effect Effects 0.000 description 12
- 238000009423 ventilation Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00285—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for vehicle seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00514—Details of air conditioning housings
- B60H1/00521—Mounting or fastening of components in housings, e.g. heat exchangers, fans, electronic regulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00557—Details of ducts or cables
- B60H1/00564—Details of ducts or cables of air ducts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5628—Heating or ventilating devices characterised by convection by air coming from the vehicle ventilation system, e.g. air-conditioning system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
- B60H1/241—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/003—Component temperature regulation using an air flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
- B60N2/5642—Heating or ventilating devices characterised by convection by air with circulation of air through a layer inside the seat
Definitions
- the present disclosure relates to a vehicle seat air conditioner for flowing air to a seat.
- a vehicle seat air conditioner described in Patent Document 1 is conventionally known.
- the vehicle seat air conditioner described in Patent Document 1 has a blower arranged under the seat. The blower sucks the conditioned air blown from the air conditioning unit disposed in front of the passenger compartment through the duct and blows the conditioned air into a seat ventilation path formed in the seat.
- the vehicle seat air conditioner of Patent Document 1 has a door in the duct.
- the door causes the air intake port of the blower to communicate with either the air passage communicating with the air conditioning unit or the air passage opened to the vehicle interior by the rotation of the door.
- the air sent to the seat by the vehicle seat air conditioner can be switched from the conditioned air to the vehicle interior air at a desired timing.
- the air-conditioning air which is cold air or hot air blown from the air-conditioning unit, is continuously blown to the passenger, or the passenger is too cold or It is possible to prevent the situation from becoming too hot.
- the door switches the air passage communicating with the air intake port of the blower as described above, but the door switching operation needs to be mechanically performed by an actuator or the like.
- a blower of a vehicle seat air conditioner and a door as an air passage switching mechanism are generally installed under a seat in a vehicle, and the space under the seat is very narrow. For these reasons, the inventors have found that the door as the switching mechanism needs to be small and simple.
- the present disclosure provides a vehicle seat air-conditioning apparatus that can easily and compactly configure a door that switches air blown to a seat to either vehicle interior air or conditioned air. Objective.
- the vehicle seat air conditioner of the present disclosure is a vehicle seat air conditioner that flows air to a seat, An inflow space forming portion in which an inflow space into which air blown out from the vehicle interior air conditioning unit for air-conditioning the vehicle interior flows is formed; A blower having a suction portion in which an air suction port communicating with the inflow space is formed, and a blower fan that sucks air in the inflow space through the air suction port and blows the sucked air to the sheet; With an opening and closing door, The inflow space forming portion is formed with a space communication hole that communicates the inflow space with the space in the passenger compartment.
- the opening / closing door is provided in the inflow space forming portion, opens and closes the space communication hole, and closes the space communication hole by closing the space communication hole from the inside of the inflow space forming portion, It is operated in the opening direction to open the space communication hole by the air differential pressure obtained by subtracting the air pressure.
- the opening / closing door closes the space communication hole from the inside of the inflow space forming portion, and the space communication hole is obtained by subtracting the air pressure in the inflow space from the air pressure in the vehicle interior. It is operated to open the opening. Therefore, it is possible to open and close the open / close door without using an actuator such as a motor. For example, if the air inflow from the vehicle interior air conditioning unit to the inflow space stops, the blower generates a negative suction pressure in the inflow space, so that the open / close door is operated in the opening direction by the air differential pressure. Therefore, for example, the opening / closing door can be made smaller and simpler than a configuration in which the opening / closing door is operated by an actuator.
- FIG. 2 is a cross-sectional view showing the II-II cross section of FIG. 1 in the first embodiment, showing a closed state where the open / close door closes the space communication hole. It is the enlarged view to which the III section in FIG. 2 was expanded.
- FIG. 2 is a cross-sectional view showing the II-II cross section of FIG. 1 in the first embodiment, showing the open state in which the open / close door opens the space communication hole. It is the enlarged view to which the V section in FIG. 4 was expanded.
- FIG. 4 is a cross-sectional view showing a cross-section taken along the line II-II of FIG.
- FIG. 10 is a cross-sectional view showing a cross section taken along the line II-II of FIG. 1 in the third embodiment, and showing a closed state of the opening / closing door.
- FIG. 10 is a cross-sectional view showing a cross section taken along the line II-II of FIG. 1 in the fourth embodiment, and showing a closed state of the opening / closing door.
- FIG. 9 is a cross-sectional view showing the IX-IX cross section of FIG. 8 in the fourth embodiment.
- FIG. 1 is an exploded perspective view showing a vehicle seat air conditioner 10 according to this embodiment and a vehicle seat 12 to which blown air is supplied from the vehicle seat air conditioner 10.
- the arrow DR1 represents the vehicle left-right direction DR1, that is, the vehicle width direction DR1
- the arrow DR2 represents the vehicle vertical direction DR2, that is, the vehicle vertical direction DR2
- the arrow DR3 represents the vehicle longitudinal direction DR3, that is, the vehicle longitudinal direction DR3.
- the vehicle seat 12 is shown in cross section.
- a vehicle seat air conditioner 10 (hereinafter, simply referred to as a seat air conditioner 10) shown in FIG.
- the vehicle seat 12 is a target sheet to which blown air is supplied from the seat air conditioner 10, that is, a blow target sheet.
- the vehicle seat 12 is a front seat as a driver seat or a passenger seat disposed in front of the vehicle with respect to a rear seat (not shown).
- the vehicle seat 12 includes a seat back 121 that serves as a back of an occupant seated on the vehicle seat 12, that is, a seat occupant, and a seat cushion that functions as a seat portion of the seat occupant and supports the buttocks and thighs 122.
- the vehicle seat 12 has a symmetrical shape in the vehicle width direction DR1.
- the seat cushion 122 of the vehicle seat 12 includes a foamed urethane seat pad 122a having elasticity, and a seat skin 122b attached to the seat pad 122a so as to cover a seated person side surface of the seat pad 122a. ing.
- the seat skin 122b is a perforated skin made of natural leather or artificial leather, for example, and a plurality of fine holes 122d penetrating in the thickness direction of the seat skin 122b are formed in the seat skin 122b.
- the blown air blown out from the seat ventilation path 122c to the seat cover 122b is blown out through the fine holes 122d to the seated person side of the seat cushion 122 as indicated by an arrow ARair.
- the structure of the seat back 121 is the same as the structure of the seat cushion 122 described above.
- the seat pad of the seat back 121 is denoted by reference numeral 121a
- the seat skin of the seat back 121 is denoted by reference numeral 121b
- the seat ventilation path of the seat back 121 is denoted by reference numeral 121c
- the fine holes of the seat back 121d are denoted by reference numeral 121d. It is represented by
- the vehicle seat 12 includes a distribution duct 123 that distributes the air blown from the seat air conditioner 10 to the seat ventilation path 121c of the seat back 121 and the seat ventilation path 122c of the seat cushion 122.
- the distribution duct 123 has an air introduction port 123 a that is an inlet of the blown air from the seat air conditioner 10.
- the distribution duct 123 is connected to both of the sheet ventilation paths 121c and 122c, and guides the blown air introduced into the air introduction port 123a to the respective sheet ventilation paths 121c and 122c.
- the distribution duct 123 includes a flexible portion 123b having flexibility so as to allow reclining of the seat back 121.
- the flexible portion 123b has flexibility due to the bellows shape.
- the seat air conditioner 10 is provided below the vehicle seat 12 in the passenger compartment. That is, the seat air conditioner 10 is provided between the vehicle seat 12 and the passenger compartment floor in the vehicle vertical direction DR2.
- the seat air conditioner 10 sucks the conditioned air from the vehicle interior air conditioning unit 16 that air-conditions the interior of the vehicle, and sends the conditioned air to the vehicle seat 12 as blown air. Then, the seat air conditioner 10 blows out the blown air to the seat occupant through the micro holes 121d and 122d of the seat back 121 and the seat cushion 122.
- the seat air conditioner 10 blows off the cold air cooled by the vehicle interior air conditioning unit 16 from the vehicle seat 12 during cooling, and blows out the warm air heated by the vehicle interior air conditioning unit 16 from the vehicle seat 12 during heating. be able to.
- the vehicle interior air conditioning unit 16 is a general air conditioning unit that includes an evaporator and a heater core and is disposed in an instrument panel in front of the vehicle interior.
- a refrigerant that is heated or cooled by a heat exchanger provided outside the vehicle interior circulates. As a result, the passenger compartment is air-conditioned.
- FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1 and shows a state where the opening / closing door 32 closes the space communication hole 28b.
- the seat air conditioner 10 includes a blower 24, an air guide duct 26, an air inlet portion 28, a connection duct 30, an open / close door 32, and the like.
- the blower 24 is an electric centrifugal blower.
- the blower 24 blows out the air sucked from the air suction port 24a to the connection duct 30 from the air outlet 24b.
- the blower 24 includes a blower fan 241, a blower casing 242, and an electric motor 243.
- the air inlet 24a of the blower 24 is provided downward, and the air outlet 24b is provided rearward of the vehicle longitudinal direction DR3. That is, the blower 24 blows out the air sucked from the lower side.
- the blower fan 241 is a sirocco fan, and has a large number of fan blades arranged around the fan axis CLf, which is a single axis extending in the vehicle vertical direction DR2.
- the blower fan 241 rotates around the fan axis CLf.
- the blower fan 241 sucks air from the air suction side that is one side in the axial direction DRfa of the fan shaft center CLf (that is, the fan shaft center direction DRfa), and the sucked air has a diameter of the blower fan 241. Blow outward in the direction. Since the fan axis CLf of the blower fan 241 is an axis extending in the vehicle vertical direction DR2, the fan axis direction DRfa coincides with the vehicle vertical direction DR2.
- a suction part 242a included in the blower casing 242 is provided on the air suction side of the blower fan 241, and an air suction port 24a is formed in the suction part 242a. That is, the blower fan 241 sucks air from the air suction port 24a side in the fan axial direction DRfa.
- the suction part 242a comprises the peripheral part of the air suction inlet 24a in the air blower casing 242.
- the air suction port 24a of the blower 24 viewed from the fan axial direction DRfa has a circular shape centered on the fan axial center CLf.
- the air suction side of the blower fan 241 is the lower side of the blower fan 241, and the air suction port 24 a is formed on the lower side with respect to the blower fan 241.
- the blower casing 242 is a housing made of, for example, resin, and the blower fan 241 is accommodated in the blower casing 242.
- the blower casing 242 has a blowout part 242b in which an air outlet 24b is formed in addition to the suction part 242a.
- the blower casing 242 is formed with an air passage 242c extending so as to surround the radially outer side of the blower fan 241.
- the air passage 242c is connected to the air outlet 24b.
- the air that has flowed into the air passage 242c from the blower fan 241 gathers at the air outlet 24b and flows out from the air outlet 24b to the connection duct 30 of FIG. 1 as indicated by an arrow Aout.
- the electric motor 243 shown in FIG. 2 is disposed on the upper side of the blower fan 241 and is fixed to the blower casing 242.
- a rotating shaft 243 a of the electric motor 243 is connected to the blower fan 241.
- the electric motor 243 rotates the blower fan 241 around the fan axis CLf in accordance with a control signal from a control device (not shown) included in the seat air conditioner 10.
- the air inlet portion 28 is an inflow space forming portion in which an inflow space 28a into which air blown from the vehicle interior air conditioning unit 16 flows is formed.
- the inflow space 28 a is formed inside the air inlet portion 28, and the air outlet of the vehicle interior air conditioning unit 16 is connected to the inflow space 28 a via the air guide duct 26.
- the conditioned air flows into the inflow space 28a through the air guide duct 26 as indicated by an arrow A1in.
- Hot air or cold air, that is, conditioned air is blown out from the air outlet of the vehicle interior air conditioning unit 16 to which the air guide duct 26 is connected.
- the air outlet is provided with an electric outlet door that opens and closes the air outlet.
- the air inlet portion 28 is made of resin, for example.
- the inflow space 28a is formed below the blower 24.
- the air inlet 24a of the blower 24 opens to the inflow space 28a and communicates with the inflow space 28a. Therefore, the blower fan 241 sucks the air in the inflow space 28 a through the air suction port 24 a and blows the sucked air to the vehicle seat 12 through the air outlet 24 b and the connection duct 30.
- the partition wall 242d between the space in which the blower fan 241 is accommodated in the blower casing 242 and the inflow space 28a is separated from the blower casing 242 and the air. Shared with the inlet 28.
- the partition wall 242d includes a suction part 242a.
- the blower casing 242 and the air inlet portion 28 are fixed to, for example, the floor of the passenger compartment.
- the air inlet portion 28 is formed with a space communication hole 28b that allows the inflow space 28a and the space in the passenger compartment to communicate with each other. That is, the space communication hole 28b is a through hole that connects the inflow space 28a and the space in the vehicle interior.
- the open / close door 32 is provided in the air inlet portion 28 and opens and closes the space communication hole 28b.
- the open / close door 32 is made of urethane resin or rubber having high flexibility, and thus has flexibility.
- the open / close door 32 is formed in, for example, a rectangular flat plate shape.
- the space communication hole 28b has an inflow space connection end 28c on the inflow space 28a side.
- the air inlet portion 28 has a connection end forming portion 281 formed so as to surround the inflow space connection end 28c.
- the open / close door 32 has one end 321 on the upper side of the open / close door 32 and the other end 322 on the lower side.
- One end 321 of the open / close door 32 is fixed to the air inlet 28, but the other end 322 is not fixed to the air inlet 28. That is, only one end portion 321 of the peripheral portion of the open / close door 32 is fixed to the air inlet portion 28.
- the open / close door 32 attached to the air inlet portion 28 in this way closes the space communication hole 28 b by being pressed against the connection end forming portion 281.
- the opening / closing door 32 closes the space communication hole 28b from the inside of the air inlet portion 28 in the operation of closing the space communication hole 28b.
- the other end 322 of the opening / closing door 32 is pressed against the connection end forming portion 281 in a hole closing state where the opening / closing door 32 closes the space communication hole 28b.
- the connection end forming portion 281 has a pressing surface 281 a as a facing surface that faces the opening / closing door 32 in a state where the opening / closing door 32 is closed. Then, the opening / closing door 32 is pressed against the pressing surface 281a in the hole closed state.
- the pressing surface 281a is formed, for example, such that the normal line of the pressing surface 281a is horizontal.
- the open / close door 32 will be described. As shown in FIGS. 2 and 3, since the opening / closing door 32 is disposed in the air inlet portion 28, the opening / closing door 32 is urged in an opening direction to open the space communication hole 28 b by the air pressure in the vehicle interior. On the other hand, the open / close door 32 is urged in the closing direction to close the space communication hole 28b by the air pressure in the inflow space 28a.
- the inside of the inflow space 28a of the air inlet portion 28 is in a positive pressure state.
- the positive pressure state is a state where the atmospheric pressure in the space is higher than the atmospheric pressure.
- the air pressure in the passenger compartment is atmospheric pressure.
- the biasing force in the closing direction with respect to the opening / closing door 32 is superior to the biasing force in the opening direction due to the difference between the air pressure in the vehicle interior and the air pressure in the inflow space 28a.
- the open / close door 32 closes the space communication hole 28b. Therefore, the blower fan 241 of the blower 24 sucks only the conditioned air out of the vehicle interior air and the conditioned air from the vehicle interior air conditioning unit 16 and blows it to the vehicle seat 12.
- the inflow space 28a is in a negative pressure state.
- the negative pressure state is a state where the atmospheric pressure in the space is lower than the atmospheric pressure.
- the open / close door 32 is operated in the opening direction by the air differential pressure obtained by subtracting the air pressure in the inflow space 28a from the air pressure in the vehicle interior.
- the open / close door 32 is bent so as to be curved between the one end 321 and the other end 322 of the open / close door 32, and the other end 322 is separated from the connection end forming portion 281. Open 28b.
- the larger the air differential pressure obtained by subtracting the air pressure in the inflow space 28a from the air pressure in the passenger compartment the stronger the opening / closing door 32 is biased in the opening direction.
- the blower fan 241 of the blower 24 sucks the vehicle interior air through the space communication hole 28b as indicated by an arrow A2in and sends it to the vehicle seat 12.
- the open / close door 32 of the present embodiment has a predetermined threshold value, for example, that the air differential pressure obtained by subtracting the air pressure in the inflow space 28a from the air pressure in the vehicle interior is positive from the weight and bending rigidity of the open / close door 32. When it exceeds, the space communication hole 28b is opened.
- connection duct 30 is a resin member molded by injection molding or vacuum molding, and the blown air blown from the air outlet 24 b of the blower 24 is sent to the air inlet 123 a of the distribution duct 123. It is a piping member to guide. That is, one end of the connection duct 30 is connected to the air outlet 24 b of the blower 24, and the other end of the connection duct 30 is connected to the air inlet 123 a of the distribution duct 123. Accordingly, the air outlet 24 b of the blower 24 is connected to the sheet ventilation paths 121 c and 122 c through the connection duct 30 and the distribution duct 123. With such a connection, the blower 24 can blow air sucked from the inflow space 28 a of the air inlet portion 28 into the seat ventilation paths 121 c and 122 c formed in the vehicle seat 12.
- connection duct 30 has a shape bent in an L shape so that the air outlet 24b of the lateral blower 24 communicates with the downward air inlet 123a.
- the connection duct 30 has a portion formed in an accordion shape so as to allow the seat back 121, the seat cushion 122, and the distribution duct 123 to move in the vehicle longitudinal direction DR3. It has.
- the opening / closing door 32 closes the space communication hole 28b from the inside of the air inlet portion 28 in the operation of closing the space communication hole 28b.
- the open / close door 32 is urged in the opening direction to open the space communication hole 28b by the air pressure in the vehicle interior, and is urged in the closing direction to close the space communication hole 28b by the air pressure in the inflow space 28a. That is, the open / close door 32 is operated in the opening direction by the air differential pressure obtained by subtracting the air pressure in the inflow space 28a from the air pressure in the vehicle interior. Therefore, the opening / closing door 32 can be opened and closed without using an actuator such as a motor.
- the opening / closing door 32 can be made smaller and simpler than a configuration in which the opening / closing door 32 is operated by an actuator.
- the open / close door 32 closes the space communication hole 28 b by being pressed against the connection end forming portion 281. Therefore, the structure in which the open / close door 32 closes the space communication hole 28b can be configured with a simple structure.
- the opening / closing door 32 bends between one end 321 and the other end 322 of the opening / closing door 32, and the other end 322 extends from the connection end forming portion 281.
- the space communication hole 28b is opened by separating. Therefore, a structure that enables the opening / closing operation of the opening / closing door 32 can be configured with a simple structure using the bending of the opening / closing door 32.
- FIG. 6 is a diagram corresponding to FIG. 2 of the first embodiment. As shown in FIG. 6, in this embodiment, the posture of the open / close door 32 attached to the air inlet portion 28 and the shape of the air inlet portion 28 around the open / close door 32 are different from those of the first embodiment. ing.
- the pressing surface 281a against which the open / close door 32 is pressed in the air inlet portion 28 of the present embodiment is provided to be inclined obliquely upward. Therefore, the open / close door 32 closes the space communication hole 28b in a posture inclined along the pressing surface 281a. That is, when the opening / closing door 32 is closed, the opening / closing door 32 is in a posture in which the other end 322 shown in FIG. 3 is positioned on the inner side in the radial direction of the fan axis CLf than the one end 321.
- the communication hole 28b is closed.
- the opening / closing door 32 closes the space communication hole 28 b in an inclined posture along the pressing surface 281 a of the air inlet portion 28. Therefore, by utilizing the dead weight of the open / close door 32, the hole closed state of the open / close door 32 is easily maintained. That is, it is possible to provide robustness with respect to a change in pressure in the inflow space 28a with respect to the operation in which the open / close door 32 opens and closes the space communication hole 28b. As a result, it is possible to avoid unintentional ventilation of vehicle interior air to the vehicle seat 12.
- FIG. 7 is a diagram corresponding to FIG. 2 of the first embodiment. As shown in FIG. 7, in this embodiment, the structure of the open / close door 32 is different from that of the first embodiment.
- the other end 322 of the open / close door 32 is disposed below the one end 321.
- the other end 322 is disposed at the same position as the one end 321 in the radial direction of the fan shaft center CLf.
- the other end portion 322 of the open / close door 32 is positioned directly below the one end portion 321 in the hole closed state. This point is the same as that of the first embodiment in this embodiment.
- the open / close door 32 is partially heavy at the other end 322.
- the other end 322 is heavier than other parts under the same volume.
- the other end 322 of the open / close door 32 includes a weight 322a having a larger specific gravity than rubber or the like, which is a main constituent material of the open / close door 32. Therefore, the other end 322 of the open / close door 32 is heavier than the one end 321.
- the opening / closing door 32 is partially heavy at the other end 322. Therefore, it is possible to provide robustness against pressure change in the inflow space 28a with respect to the operation in which the open / close door 32 opens and closes the space communication hole 28b. Then, by setting the mass of the weight 322a to a desired size, it is possible to control the opening / closing operation of the opening / closing door 32 according to the difference between the air pressure in the vehicle compartment and the air pressure in the inflow space 28a.
- this embodiment is a modification based on 1st Embodiment, it is also possible to combine this embodiment with the above-mentioned 2nd Embodiment.
- FIG. 8 is a diagram corresponding to FIG. 2 of the first embodiment.
- FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. As shown in FIGS. 8 and 9, in this embodiment, a plurality of open / close doors 32 and a plurality of space communication holes 28b are provided, and this is different from the first embodiment.
- five open / close doors 32 are provided, and five air communication holes 28 b are formed in the air inlet portion 28.
- the plurality of open / close doors 32 are arranged side by side in the circumferential direction of the fan axis CLf.
- the plurality of space communication holes 28b are also arranged side by side in the circumferential direction of the fan shaft center CLf.
- the open / close door 32 and the space communication hole 28b are both disposed outside the air suction port 24a of the blower 24 in the radial direction of the fan shaft center CLf.
- all of the inflow space connection ends 28c of the space communication holes 28b face inward in the radial direction of the fan axial center CLf.
- the inflow space connection end 28 c of the space communication hole 28 b when viewed from the fan axial direction DRfa, has an inner side in the radial direction of the fan axial center CLf. It is suitable. Therefore, when the space communication hole 28b is opened, the vehicle interior air blown from the space communication hole 28b into the inflow space 28a can be smoothly directed to the air suction port 24a of the blower 24 as indicated by an arrow A3in.
- this embodiment is a modification based on 1st Embodiment, it is also possible to combine this embodiment with the above-mentioned 2nd Embodiment or 3rd Embodiment.
- the open / close door 32 opens the space communication hole 28b by bending so as to be curved, but the open / close door 32 may be a door that does not bend.
- the open / close door 32 may be a pivot door whose one end 321 is rotatably supported by the air inlet portion 28. Even if the opening / closing door 32 is such a rotating door, the opening / closing door 32 is operated in the opening direction by the air differential pressure obtained by subtracting the air pressure in the inflow space 28a from the air pressure in the vehicle interior.
- the other end 322 of the opening / closing door 32 is disposed at the same position as the one end 321 in the radial direction of the fan shaft center CLf. It is not limited to such an arrangement.
- the opening / closing door 32 is inclined as shown in FIG. 6, and the other end 322 is disposed at a position inside the one end 321 in the radial direction of the fan shaft center CLf. There is no problem.
- the open / close door 32 is formed in, for example, a rectangular flat plate shape, but the shape of the open / close door 32 is not limited.
- the seat air conditioner 10 blows off the cool air cooled by the vehicle interior air conditioning unit 16 from the vehicle seat 12 during cooling, and warm air heated by the vehicle interior air conditioning unit 16 during heating. Is blown out of the vehicle seat 12, but this is an example.
- the seat air conditioner 10 does not need to have a function of blowing out both cold air and hot air, and the seat air conditioner 10 blows out only one of the cold air and the hot air from the vehicle seat 12. It doesn't matter.
- the blower 24 is a centrifugal blower.
- the form thereof is not limited, and may be an axial flow blower, for example.
- a plurality of opening / closing doors 32 and a plurality of space communication holes 28b are provided, but only one each may be provided.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Air-Conditioning For Vehicles (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
車室内を空調する車室内空調ユニットから吹き出された空気が流入する流入空間が形成された流入空間形成部と、
流入空間へ連通する空気吸込口が形成された吸込部と流入空間内の空気を空気吸込口を介して吸い込みその吸い込んだ空気をシートへ送風する送風ファンとを有する送風機と、
開閉ドアとを備え、
流入空間形成部には、流入空間と車室内の空間とを連通させる空間連通孔が形成され、
開閉ドアは、流入空間形成部内に設けられ、空間連通孔を開閉し、その空間連通孔を塞ぐ動作ではその空間連通孔を流入空間形成部の内側から塞ぎ、車室内の空気圧から流入空間内の空気圧を差し引いた空気差圧によって空間連通孔を開く開放向きに動作させられる。
図1は、本実施形態の車両用シート空調装置10とその車両用シート空調装置10から送風空気が供給される車両用シート12とを示した分解斜視図である。図1において矢印DR1は車両の左右方向DR1すなわち車両幅方向DR1を表し、矢印DR2は車両の上下方向DR2すなわち車両上下方向DR2を表し、矢印DR3は車両の前後方向DR3すなわち車両前後方向DR3を表している。また、図1では車両用シート12が断面図示されている。
次に、第2実施形態について説明する。本実施形態では、前述の第1実施形態と異なる点を主として説明する。また、前述の実施形態と同一または均等な部分については省略または簡略化して説明する。このことは後述の第3実施形態以降でも同様である。
次に、第3実施形態について説明する。本実施形態では、前述の第1実施形態と異なる点を主として説明する。
次に、第4実施形態について説明する。本実施形態では、前述の第1実施形態と異なる点を主として説明する。
(1)上述の各実施形態において、開閉ドア32は、湾曲するように撓むことにより空間連通孔28bを開くが、開閉ドア32は撓まないドアであっても差し支えない。例えば、開閉ドア32は、一端部321が空気入口部28に回動可能に支持された回動ドアであってもよい。開閉ドア32がそのような回動ドアであっても、開閉ドア32は、車室内の空気圧から流入空間28a内の空気圧を差し引いた空気差圧によって開放向きに動作させられる。
Claims (8)
- シート(12)へ空気を流す車両用シート空調装置であって、
車室内を空調する車室内空調ユニット(16)から吹き出された空気が流入する流入空間(28a)が形成された流入空間形成部(28)と、
前記流入空間へ連通する空気吸込口(24a)が形成された吸込部(242a)と前記流入空間内の空気を前記空気吸込口を介して吸い込み該吸い込んだ空気を前記シートへ送風する送風ファン(241)とを有する送風機(24)と、
開閉ドア(32)とを備え、
前記流入空間形成部には、前記流入空間と前記車室内の空間とを連通させる空間連通孔(28b)が形成され、
前記開閉ドアは、前記流入空間形成部内に設けられ、前記空間連通孔を開閉し、該空間連通孔を塞ぐ動作では該空間連通孔を前記流入空間形成部の内側から塞ぎ、前記車室内の空気圧から前記流入空間内の空気圧を差し引いた空気差圧によって前記空間連通孔を開く開放向きに動作させられる車両用シート空調装置。 - 前記空気差圧が大きいほど前記開閉ドアは前記開放向きに強く付勢される請求項1に記載の車両用シート空調装置。
- 前記空間連通孔は、前記流入空間側に流入空間接続端(28c)を有し、
前記流入空間形成部は、前記流入空間接続端を囲んで形成している接続端形成部(281)を有し、
前記開閉ドアは、前記接続端形成部に対して押し当てられることにより前記空間連通孔を塞ぐ請求項1または2に記載の車両用シート空調装置。 - 前記開閉ドアは、
可撓性を有すると共に、
前記流入空間形成部に固定された一端部(321)と、前記空間連通孔を塞いだ状態で前記接続端形成部に対して押し当てられる他端部(322)とを有し、
前記一端部と前記他端部との間で撓み且つ前記他端部が前記接続端形成部から離れることにより前記空間連通孔を開く請求項3に記載の車両用シート空調装置。 - 前記送風ファンは、上下に延びるファン軸心(CLf)まわりに回転し、該ファン軸心の軸方向(DRfa)における前記空気吸込口側から空気を吸い込むものであり、
前記開閉ドアが前記空間連通孔を塞いだ状態において、前記開閉ドアの他端部は前記一端部よりも下側に配置され、且つ、前記ファン軸心の径方向で前記一端部と同じ位置又は該一端部よりも内側の位置に配置され、
前記開閉ドアは、前記他端部において部分的に重く構成されている請求項4に記載の車両用シート空調装置。 - 前記送風ファンはファン軸心(CLf)まわりに回転し、該ファン軸心の軸方向(DRfa)における前記空気吸込口側から空気を吸い込むものであり、
前記開閉ドアは、前記ファン軸心の径方向において前記空気吸込口よりも外側に配置され、
前記軸方向から見た場合に、前記空間連通孔の流入空間接続端は前記径方向の内側を向いている請求項3または4に記載の車両用シート空調装置。 - 前記流入空間形成部には前記空間連通孔が複数形成され、
前記開閉ドアは複数設けられており、
前記複数の開閉ドアは前記ファン軸心の周方向に並んで配置され、前記複数の空間連通孔も前記周方向に並んで配置さている請求項6に記載の車両用シート空調装置。 - 前記接続端形成部は、前記開閉ドアが押し当てられる押当て面(281a)を有し、
該押当て面は、斜め上向きに傾斜して設けられ、
前記開閉ドアは、前記押当て面に沿って傾斜した姿勢で前記空間連通孔を塞ぐ請求項3ないし7のいずれか1つに記載の車両用シート空調装置。
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DE112016004485.2T DE112016004485T5 (de) | 2015-10-01 | 2016-09-09 | Sitz-Klimatisierungs-Einrichtung für ein Fahrzeug |
US15/744,321 US20180201089A1 (en) | 2015-10-01 | 2016-09-09 | Seat air conditioning device for vehicle |
JP2017543077A JP6447740B2 (ja) | 2015-10-01 | 2016-09-09 | 車両用シート空調装置 |
CN201680035923.8A CN107735273A (zh) | 2015-10-01 | 2016-09-09 | 车辆用座椅空调装置 |
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JP (1) | JP6447740B2 (ja) |
CN (1) | CN107735273A (ja) |
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Cited By (2)
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WO2020110476A1 (ja) * | 2018-11-26 | 2020-06-04 | 株式会社デンソー | シート空調装置 |
CN114728609A (zh) * | 2019-12-20 | 2022-07-08 | 捷温汽车有限公司 | 用于交通工具座椅的空气混合器 |
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JP6652199B2 (ja) * | 2016-10-24 | 2020-02-19 | 株式会社デンソー | 通風シートおよび座席空調装置 |
BR112019017315B1 (pt) | 2017-03-01 | 2023-03-07 | Ts Tech Co., Ltd | Assento de veículo |
JP2020066377A (ja) * | 2018-10-26 | 2020-04-30 | 本田技研工業株式会社 | 車両用空調装置 |
JP2020066378A (ja) * | 2018-10-26 | 2020-04-30 | 本田技研工業株式会社 | 車両用空調装置 |
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- 2016-09-09 JP JP2017543077A patent/JP6447740B2/ja not_active Expired - Fee Related
- 2016-09-09 DE DE112016004485.2T patent/DE112016004485T5/de not_active Ceased
- 2016-09-09 US US15/744,321 patent/US20180201089A1/en not_active Abandoned
- 2016-09-09 WO PCT/JP2016/076614 patent/WO2017056921A1/ja active Application Filing
- 2016-09-09 CN CN201680035923.8A patent/CN107735273A/zh active Pending
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DE112016004485T5 (de) | 2018-06-14 |
CN107735273A (zh) | 2018-02-23 |
JPWO2017056921A1 (ja) | 2018-02-22 |
US20180201089A1 (en) | 2018-07-19 |
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