CN117124793A - Heating ventilation air conditioning unit for vehicle - Google Patents

Abstract

The present disclosure provides a "heating ventilation air conditioning unit for a vehicle". A vehicle hvac unit includes a seat assembly having a seat air duct assembly disposed in an interior of the seat assembly. A hvac assembly includes a housing having a first surface and a second surface. The seat assembly is disposed on the first surface of the housing. The seat guide air duct is arranged in the shell. The seat guide air duct is in fluid communication with the seat air duct assembly and an air inlet defined by the housing. The condenser is disposed in the housing proximate the air inlet and the evaporator is disposed in the housing proximate the inlet of the seat guide air duct.

Description

Heating ventilation air conditioning unit for vehicle

Technical Field

The present disclosure relates generally to a heating, ventilation and air conditioning (HVAC) unit. More specifically, the present disclosure relates to an HVAC unit for a vehicle.

Background

The vehicle may include an HVAC system for processing air directed into a passenger compartment of the vehicle. HVAC systems typically direct air from the outside to the vehicle and exhaust the air into the passenger compartment after the air is treated. HVAC systems may also recirculate air from passenger compartment to passenger compartment after processing the air.

Disclosure of Invention

In accordance with at least one aspect of the present disclosure, a vehicle hvac unit includes a seat assembly having a seat air duct assembly disposed in an interior of the seat assembly. A hvac assembly includes a housing having a first surface and a second surface. The seat assembly is disposed on the first surface of the housing. The seat guide air duct is arranged in the shell. The seat guide air duct is in fluid communication with the seat air duct assembly and an air inlet defined by the housing. The condenser is disposed in the housing proximate the air inlet and the evaporator is disposed in the housing proximate the inlet of the seat guide air duct.

According to another aspect of the present disclosure, a hvac unit for a vehicle includes an hvac assembly having a housing defining an air intake. The housing has a first surface and a second surface opposite the first surface. The floor air duct assembly is disposed within the housing. The floor tunnel assembly includes at least one seat guide tunnel. The blower motor is disposed proximate to an inlet of the at least one seat guide air duct. The blower motor is configured to direct air through the inlet. At least one seat assembly is operatively coupled to the first surface of the housing. The at least one seat assembly defines at least one vent. The at least one seat assembly includes a seat air duct assembly in fluid communication with the floor air duct assembly to direct air through the at least vent.

According to another aspect of the present disclosure, a hvac unit for a vehicle includes a housing defining an interior. The housing defines an air inlet fluidly coupled with the interior. The housing defines a first vent opening on a first surface thereof and a second vent opening on a second surface thereof. A floor tunnel assembly is disposed in the interior of the housing. The floor air duct assembly includes a battery guide air duct in fluid communication with the air inlet and the first ventilation opening. The battery guide duct is configured to guide air toward a battery. A seat guide air duct is in fluid communication with the air inlet and the second ventilation opening. The seat guide air duct is configured to direct air toward the seat assembly.

These and other aspects, objects, and features of the present disclosure will be understood and appreciated by those skilled in the art upon studying the following specification, claims, and appended drawings.

Drawings

The following is a description of the drawings. The figures are not necessarily to scale and certain features and certain views of the figures may be shown exaggerated in scale or in schematic for clarity and conciseness.

In the drawings:

FIG. 1 is a side perspective view of a vehicle having an HVAC assembly included in a support assembly according to the present disclosure;

FIG. 2 is an exploded view of a vehicle having a body, an HVAC assembly, and a battery platform according to the present disclosure;

FIG. 3A is a side perspective view of a vehicle including an HVAC assembly, a battery platform, and a truck body shown in phantom according to the present disclosure;

FIG. 3B is a side perspective view of a vehicle including an HVAC assembly, a battery platform, and a wagon body shown in phantom according to the present disclosure;

FIG. 4 is a top perspective view of an HVAC assembly for a vehicle with an upper surface in phantom according to the present disclosure;

FIG. 5 is a side perspective view of an HVAC unit including a seat assembly disposed on the HVAC assembly with an upper surface of the HVAC assembly removed according to the present disclosure;

FIG. 6 is a top perspective view of an HVAC unit including a seat assembly disposed on the HVAC assembly with an upper surface of the HVAC assembly removed according to the present disclosure;

FIG. 7 is a top perspective view of an HVAC assembly for a vehicle having two HVAC systems with an upper surface of the HVAC assembly in phantom according to the present disclosure;

FIG. 8 is an exploded view of a support assembly for a vehicle including a battery platform and an HVAC unit with a seat assembly disposed on the battery platform according to the present disclosure;

FIG. 9 is a top perspective view of an HVAC unit including a seat assembly disposed on the HVAC assembly with an upper surface of the HVAC assembly in phantom according to the present disclosure;

FIG. 10 is a side perspective view of a seat assembly for a vehicle having a seat air duct assembly according to the present disclosure;

FIG. 11 is a cross-sectional view of the engagement between a seat air duct assembly and a floor duct assembly of an HVAC assembly according to the present disclosure;

FIG. 12 is a side perspective view of a seat assembly for a vehicle having a seat air duct assembly according to the present disclosure;

FIG. 13A is a front perspective view of a seat assembly defining a vent according to the present disclosure;

FIG. 13B is a rear perspective view of a seat assembly defining a rear vent according to the present disclosure; and

fig. 14 is a block diagram of an HVAC unit for a vehicle according to the present disclosure.

Detailed Description

Additional features and advantages of the presently disclosed apparatus will be set forth in the detailed description which follows, and in part will be readily apparent to those skilled in the art from that description or recognized by practicing the apparatus as described in the following description as well as the claims and appended drawings.

For purposes of the description herein, the terms "upper," "lower," "right," "left," "rear," "front," "vertical," "horizontal," and derivatives thereof shall relate to the concept as oriented in fig. 1. However, it is to be understood that the concepts may assume various alternative orientations, except where expressly specified to the contrary. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Thus, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.

As used herein, the term "and/or" when used with respect to two or more of the listed items means that any one of the listed items may be employed alone or any combination of two or more of the listed items may be employed. For example, if the composition is described as containing components A, B and/or C, the composition may contain: only A; only B; only C; a combination of A and B; a combination of a and C; a combination of B and C; or a combination of A, B and C.

As used herein, the term "about" means that the amounts, sizes, formulations, parameters, and other amounts and characteristics are not and need not be exact, but may be approximate and/or larger or smaller, as desired: reflecting tolerances, scaling factors, rounding off, measurement errors and the like, as well as other factors known to those skilled in the art. When the term "about" is used to describe an endpoint of a value or range, the disclosure should be understood to include the particular value or endpoint involved. Whether or not the endpoints of a numerical value or range in this specification are stated to be "about," the endpoint of the numerical value or range is intended to include two embodiments: one modified by "about" and one not modified by "about". It will also be understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.

The terms "a," "an," or "the" as used herein mean "at least one" and should not be limited to "only one," unless expressly indicated to the contrary. Thus, for example, reference to "a component" includes embodiments having two or more such components unless the context clearly indicates otherwise.

In this document, relational terms such as first and second, top and bottom, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The inclusion of an element "comprising" … … does not exclude the presence of other elements in a process, method, article, or apparatus that comprises the element without additional constraint.

Referring to fig. 1-14, reference numeral 10 generally designates a heating, ventilation and air conditioning (HVAC) unit for a vehicle 12, the HVAC unit including a seat assembly 14 having a seat air duct assembly 16 disposed in an interior 18 of the seat assembly 14. The HVAC assembly 20 includes a housing 22 having a first surface 24 and a second surface 26. The seat assembly 14 is disposed on a first surface 24 of the housing 22. A seat guide air duct 28 is provided within the housing 22. The seat guide air duct 28 is in fluid communication with the seat air duct assembly 16 and an air inlet 30 defined by the housing 22. A condenser 32 is disposed within the housing 22 proximate the air inlet 30. An evaporator 34 is disposed within the housing 22 adjacent an inlet 36 of the seat guide air duct 28.

Referring to fig. 1 and 2, the vehicle 12 generally includes a body 46, an HVAC assembly 20, and a platform 48. Typically, the platform 48 houses the battery 50 when the vehicle 12 is configured as a Battery Electric Vehicle (BEV) 12. In addition, the platform 48 and the HVAC assembly 20 form a base support assembly 52 for the vehicle 12 that supports the vehicle body 46 and the seat assembly 14 (fig. 5). Wheels 54 are coupled to platform 48, which also typically includes a drive unit. The HVAC assembly 20 is disposed on the platform 48 between the additional support features 56, 58. The body 46 is coupled to the platform 48 above the HVAC assembly 20 and the support features 56, 58.

The vehicle 12 is shown as a truck; however, the vehicle 12 may be a sedan, a sport utility vehicle, a van, a cross-over vehicle, other types of wheeled motor vehicles 12, or other styles or types of vehicles 12. The vehicle 12 may be a manually operated vehicle 12 (e.g., operated with a human driver), a fully autonomous vehicle 12 (e.g., operated without a human driver), or a partially autonomous vehicle 12 (e.g., operated with or without a human driver). In addition, the vehicle 12 may be used for personal or business purposes, such as for transportation, providing ride service (e.g., drive-in transportation), or ride-on service. Further, the vehicle 12 may be an electric vehicle 12, such as a BEV, or have an internal combustion engine.

The body 46 and the HVAC assembly 20 cooperate to substantially form an interior compartment 66 of the vehicle 12. The body 46 generally includes four sides including a front portion, two lateral sides, and a top portion. The bottom of the vehicle body 46 is open and the HVAC assembly 20 and the support features 56, 58 operate to close the bottom of the vehicle body 46 to enclose the interior compartment 66.

Referring to fig. 3A and 3B, the platform 48, HVAC assembly 20, and support features 56, 58 may be utilized with various configurations of the vehicle body 46. For example, as shown in FIG. 3A, body 46 is configured as a truck body 68. In fig. 3B, body 46 is configured as a wagon body 70. The platform 48 and HVAC assembly 20 may remain substantially similar and utilized with various configurations of the body 46, including but not limited to truck bodies 68 and truck bodies 70. The various bodies 46 may have a common attachment point to engage the HVAC assembly 20 and the platform 48. Thus, the HVAC assembly 20 may be utilized interchangeably with multiple types of vehicles 12 and platforms 48.

Referring to FIG. 4, the HVAC assembly 20 includes a housing 22 having a first surface 24 and a second opposing surface 26. Generally, the first surface 24 is an upper surface oriented toward the interior compartment 66. The second surface 26 is a lower surface oriented toward the platform 48.

The housing 22 defines an interior 80 for housing an HVAC system 82 for treating air drawn through the air intake 30. The housing 22 defines the air intake 30 on a side 84 of the housing 22, which may generally be the vehicle forward side of the HVAC assembly 20. Air from an area outside of the vehicle 12 travels through the air intake 30 to be treated by the HVAC system 82 within the HVAC assembly 20. Accordingly, the interior 80 of the housing 22 is in fluid communication with the air intake 30 to direct air through the HVAC system 82.

Typically, the HVAC system 82 cleans, cools, heats, conditions, ventilates, and/or dehumidifies the air. Air enters through the air intake 30, is processed by the HVAC system 82, and is exhausted from the HVAC assembly 20. The area of the HVAC system 82 that discharges air depends on the configuration of the HVAC assembly 20. In the example shown in fig. 4, the HVAC assembly 20 exhausts air through the first surface 24 and toward the interior compartment 66.

Still referring to fig. 4, the hvac system 82 generally includes a condenser 32, a compressor 86, a dryer 88, an expansion valve 90, and evaporators 92, 94 (which may be collectively referred to as the evaporator 34). The HVAC system 82 also typically includes a condenser fan 96 and blower motors 98, 100. The compressor 86 typically compresses the refrigerant into a heated vapor, thereby placing the HVAC system 82 in a high pressure state. The pressure forces the liquid out of the compressor 86 through the conduit 102 throughout the HVAC system 82. A compressor 86 is disposed in the interior 80 of the housing 22 proximate the condenser 32.

A condenser 32 is positioned adjacent the air inlet 30. From the compressor 86, the refrigerant proceeds to the condenser 32, where the refrigerant is cooled by air passing through the condenser 32. Typically, the refrigerant becomes liquid as it travels through the condenser 32. A condenser fan 96 is disposed proximate the condenser 32 and operates to cool the condenser 32.

The refrigerant then moves to a dryer 88 disposed on an opposite side of the condenser 32 relative to the compressor 86. The dryer 88 generally operates to remove moisture from the HVAC system 82. Further, the dryer 88 may include a filter that may trap contaminants that may be inside the HVAC system 82.

The cooled refrigerant moves from the dryer 88 to an expansion valve 90. The expansion valve 90 typically produces a pressure drop. The expansion valve 90 operates to convert the refrigerant into a gaseous form or mist. An expansion valve 90 is typically disposed adjacent to the condenser 32 and between the compressor 86 and the dryer 88.

Still referring to fig. 4, two evaporators 92, 94 are disposed adjacent to the expansion valve 90. The refrigerant travels from the expansion valve 90 through at least one of the evaporators 92, 94 in a gaseous or fog state to absorb heat from the air moving through the evaporators 92, 94, respectively. Typically, after traveling through the evaporators 92, 94, the refrigerant then returns to the compressor 86 to be compressed again. A blower motor 98, 100 is disposed between the evaporators 92, 94 adjacent the expansion valve 90. Blower motors 98, 100 operate to push air through evaporators 92, 94.

As previously described, the condenser 32 is disposed proximate the air inlet 30 of the housing 22. Typically, air travels through the air intake 30 and past the condenser 32, thereby removing heat from the condenser 32. The air then travels through the interior 80 of the housing 22. Blower motors 98, 100 operate to draw air from air intake 30. Additionally or alternatively, the blower motors 98, 100 push air through the cooling tubes of the evaporators 92, 94 to deliver cooled air into the floor tunnel assembly 110. Air travels through the floor tunnel assembly 110 and is exhausted from the HVAC assembly 20.

A floor tunnel assembly 110 is disposed within the interior 80 of the housing 22. The floor tunnel assembly 110 directs air treated by the HVAC system 82 to various locations. The floor tunnel assembly 110 includes a first seat guide tunnel 112, a second seat guide tunnel 114, a third seat guide tunnel 116, and a fourth seat guide tunnel 118, which may be collectively referred to as the seat guide tunnels 28.

Each of the seat guide air channels 28 is coupled to an air channel connector 120 and extends to a different location within the housing 22. The duct connector 120 is generally hollow and directs air from the HVAC system 82 to the floor duct assembly 110. An air duct connector 120 is disposed in the interior 80 of the housing 22 proximate the blower motors 98, 100. The inlet 36 of each seat guide tunnel 28 is in fluid communication with a tunnel connector 120. Thus, air may be directed through the tunnel connector 120 and through each seat to the inlet 36 of the tunnel 28.

Typically, the first seat guide channel 112 is a mirror image of the second seat guide channel 114, while the third seat guide channel 116 is a mirror image of the fourth seat guide channel 118. The first and second seat guide channels 112, 114 are shorter in length than the third and fourth seat guide channels 116, 118. The first seat guide channel 112 and the second seat guide channel 114 extend from the channel connector 120 and in opposite directions relative to each other. The third seat guide air channel 116 and the fourth seat guide air channel 118 are coupled to an air channel connector 120 between the first seat guide air channel 112 and the second seat guide air channel 114. The third seat guide air channel 116 and the fourth seat guide air channel 118 extend in the vehicle rearward direction in the interior 80 of the housing 22 and extend outwardly in opposite directions relative to each other.

Each of the seat guide channels 28 defines an outlet 124 that discharges air upwardly through the first surface 24 of the housing 22. The housing 22 defines a vent opening 126 within the first surface 24. The outlet 124 is aligned with the vent opening 126 to vent air through the housing 22 and out of the HVAC assembly 20. The ventilation openings 126 are spaced apart on the first surface 24 to direct air to different locations over the HVAC assembly 20.

Referring to fig. 5, the seat assembly 14 is disposed on the first surface 24 of the housing 22. The seat assembly 14 includes a base support 140 operatively coupled to the housing 22. The seat base 142 is coupled to the base support 140 to provide a seating position for an occupant. A seat back 144 is coupled to the seat base 142 and a headrest 146 is coupled to the seat back 144. Generally, the seat back 144 has support pads 148, 150 to provide arm support to a passenger seated on the seat assembly 14.

Still referring to fig. 5 and 6, the vehicle 12 in the illustrated example includes four seat assemblies 160, 162, 164, 166, which may be collectively referred to as the seat assembly 14. The first seat assembly 160 and the second seat assembly 162 are disposed in a first vehicle front row seat, while the third seat assembly 164 and the fourth seat assembly 166 are disposed in a second vehicle rear row seat.

The seat guide channels 28 each extend to a corresponding seat assembly 14. For example, the first seat guide air channel 112 is in fluid communication with the seat assembly 160, while the second seat guide air channel 114 is in fluid communication with the seat assembly 162. In addition, the third seat guide air channel 116 is in fluid communication with the seat assembly 164, while the fourth seat guide air channel 118 is in fluid communication with the seat assembly 166. Each seat assembly 14 is disposed over one of the ventilation openings 126 defined by the housing 22 such that air may be directed into the interior 18 of the seat assembly 14 from a corresponding seat guide air duct 28 of the floor air duct assembly 110, respectively. Additionally or alternatively, the floor tunnel assembly 110 is coupled with the seat air tunnel assemblies 16 disposed in the interior 18 of each of the seat assemblies 14 to provide airflow to passengers on the seat assemblies 14, as discussed further herein.

Each seat assembly 14 is configured to rotate about a respective axis of rotation 170. Each seat assembly 14 is configured to rotate about 360 ° about the axis of rotation 170. The seat air duct assembly 16 rotates with the seat assembly 14 as the seat assembly 14 rotates between different positions relative to the HVAC assembly 20 to provide a similar airflow experience. The seat assembly 14 may be oriented in any direction relative to the HVAC assembly 20 and thus the vehicle 12 and experience a substantially similar airflow experience.

Referring to FIG. 7, an additional or alternative configuration of an HVAC unit 10 having an additional or alternative HVAC assembly 20 is shown. In the example shown, the HVAC assembly 20 has a dual system for handling and exhausting air. The HVAC assembly 20 includes a housing 178 defining a first air inlet 180 on a first side 182 thereof and a second air inlet 184 on an opposite second side 186 thereof. The first and second air inlets 180, 184 are generally disposed proximate to the front wheels 54 of the vehicle 12, as best shown in fig. 8. Similar to the housing 22, the housing 178 is configured to be disposed on the platform 48 as part of the base support assembly 52 (fig. 8).

The HVAC assembly 20 includes an HVAC system 194 associated with the first air scoop 180 and an HVAC system 196 associated with the second air scoop 184. Each HVAC system 194, 196 includes a condenser 32, a compressor 86, a dryer 88, an expansion valve 90, and an evaporator 92, 94. In addition, each HVAC system 194, 196 includes a condenser fan 96 disposed proximate to the condenser 32 and the blower motors 98, 100. A cover 200 is coupled to the housing 178 proximate each of the first and second air inlets 180, 184 for directing an airflow into the housing 178 while substantially preventing debris from entering the housing 178.

For the HVAC system 194, the condenser 32 is disposed proximate to the first air intake 180. A condenser fan 96 is provided adjacent to the condenser 32 to cool the condenser 32. A compressor 86 and a dryer 88 are disposed adjacent to the condenser 32. The expansion valve 90 is disposed adjacent the compressor 86 and blower motors 98, 100. Blower motors 98, 100 are disposed between the evaporators 92, 94. The HVAC system 194 is disposed generally adjacent the first side 182 of the housing 178. The HVAC system 194 operates in a similar manner as the HVAC system 82 described herein.

Still referring to FIG. 7, the HVAC system 194 is in fluid communication with the first floor tunnel assembly 210. The first floor tunnel assembly 210 includes two seat guide tunnels 212, 214 and three battery guide tunnels 216, 218, 220. The inlet 36 of each seat guide air channel 212, 214 and the inlet 226 of each battery guide air channel 216, 218, 220 are positioned adjacent to each other and to the blower motor 98, 100. Generally, each seat guide air channel 212, 214 and each battery guide air channel 216, 218, 220 is coupled to an air channel connector 228 that fluidly couples the HVAC system 194 with the first floor air channel assembly 210. Three battery guide channels 216, 218, 220 are generally disposed between two seat guide channels 212, 214 adjacent to a channel connector 228. The blower motors 98, 100 operate to push air across the evaporators 92, 94 and through the inlets 36, 226 of the first floor tunnel assembly 210.

The seat guide channel 212 is generally a mirror image of the seat guide channel 214. The seat guide air channel 212 extends from the air channel connector 228 in the vehicle forward direction, while the seat guide air channel 214 extends from the air channel connector 228 in the vehicle rearward direction. The battery guide air duct 216 is generally a mirror image of the battery guide air duct 218. The battery guide air duct 216 extends from the air duct connector 228 in the vehicle forward direction, while the battery guide air duct 218 extends from the air duct connector 228 in the vehicle rearward direction. Each of the battery guide air channel 216 and the battery guide air channel 218 extend a greater distance than the seat guide air channels 212, 214, respectively. The battery guide air duct 220 extends from the air duct connector 228 toward a central location within the housing 178. The battery guide air duct 218 extends in the vehicle forward direction, but does not extend as far as the seat guide air duct 212 in the vehicle forward direction. Each air chute of the floor air chute assembly 210 extends to a different location on the first side 182 of the housing 178.

Still referring to fig. 7, an hvac system 196 is associated with the second air intake 184 on the second side 186 of the housing 178. The HVAC system 196 includes a condenser 32 disposed proximate the second air inlet 184. Air travels through the second air inlet 184, over the condenser 32, and toward the blower motors 98, 100. Blower motors 98, 100 push air through evaporators 92, 94 to direct air into second floor tunnel assembly 240.

The second floor tunnel assembly 240 includes two seat guide tunnels 242, 244 and three battery guide tunnels 246, 248, 250. Seat guide channels 242, 244 and battery guide channels 246, 248, 250 are each coupled to a channel connector 252. The inlet 36 of each seat guide air duct 242, 244 and the inlet 226 of each battery guide air duct 246, 248, 250 are disposed proximate to the blower motors 98, 100 to receive air processed by the HVAC system 196. The seat guide air channel 242 is generally a mirror image of the seat guide air channel 244. The seat guide air channel 242 extends in the vehicle forward direction from the air channel connector 252, and the seat guide air channel 244 extends in the vehicle rearward direction from the air channel connector.

Battery guide air duct 246 is generally a mirror image of battery guide air duct 248. Battery guide air duct 246 extends from air duct connector 252 in a vehicle forward direction, and battery guide air duct 248 extends from air duct connector 252 in a vehicle rearward direction. Each of the battery guide air duct 246 and the battery guide air duct 248 extends a greater distance than the seat guide air ducts 242, 244, respectively. The battery guide air duct 250 extends from the air duct connector 252 toward a central location within the housing 178. The battery guide air duct 250 extends in the vehicle rearward direction, but does not extend as far as the seat guide air duct 244 in the vehicle rearward direction. Each air chute of the second floor air chute assembly 240 extends to a different location on the second side 186 of the housing 178.

Typically, the HVAC system 194 is a mirror image of the HVAC system 196. Additionally or alternatively, the seat guide channels 212, 214 of the first floor tunnel assembly 210 are mirror images of the seat guide channels 242, 244 of the second floor tunnel assembly 240. In addition, the battery guide channels 216, 218 are mirror images of the battery guide channels 246, 248.

Still referring to fig. 7 and 8, the hvac assembly 20 generally includes a rotating support 260 coupled to each seat assembly 14. Each rotational support 260 may be disposed partially within the interior 80 of the housing 178 and partially on the first surface 24 of the housing 178. The first surface 24 of the housing 178 defines a recess 262 for receiving each of the rotary supports 260. The rotational support 260 allows the seat assembly 14 to rotate about the respective rotational axis 170.

The HVAC assembly 20 includes two floor tunnel assemblies 210, 240 to direct air to a plurality of locations and directions relative to the housing 178. The HVAC assembly 20 includes seat guide air channels 212, 214, 242, 244, which may be generally referred to as seat guide air channels 28. The HVAC assembly 20 also includes battery guide air ducts 216, 218, 220 and battery guide air ducts 246, 248, 250, which may be generally referred to as battery guide air duct 268.

The first surface 24 of the housing 178 defines a vent opening 266. Typically, the outlet 124 of each seat guide channel 28 is aligned with one of the ventilation openings 266. In this manner, the seat guide air channel 28 directs air through the ventilation opening 266 defined in the first surface 24 of the housing 178. Each rotational support 260 includes a hollow center 270 that is aligned with one of the ventilation openings 266, respectively. The seat tunnel 28 may extend at least partially through the hollow center 270 of the respective rotary support 260 to direct air through the ventilation openings 266.

Still referring to fig. 7 and 8, the housing 178 defines a vent opening 280 in the second surface 26 of the housing 178. The ventilation opening 280 is generally aligned with an outlet 282 of the battery guide duct 268. The battery guide air duct 268 directs air across the second surface 26 of the housing 178. In the example shown in fig. 8, the housing 178 is disposed on the platform 48 above the battery 50. The battery guide duct 268 directs air toward the batteries 50 housed in the platform 48. The air directed to the battery 50 operates to cool the battery 50.

The HVAC assembly 20 directs air through each of the first surface 24 and the second surface 26 of the housing 178 in opposite directions to accomplish two separate operations. Air is directed through the first surface 24 to the seat assembly 14 and, thus, to the interior compartment 66 of the vehicle 12. In addition, air is directed through the second surface 26 of the housing 178 toward the cells 50 housed in the platform 48. Thus, the HVAC assembly 20 operates to cool the passengers in the interior compartment 66 (fig. 1) and the battery 50 housed beneath the HVAC assembly 20.

Still referring to fig. 7 and 8 and 9, the seat assembly 14 is fluidly coupled to the seat guide air channel 28 provided on the housing 178. Air is directed through the first air inlet 180, is processed by the HVAC system 194, through the floor tunnel assembly 210, and through the seat assemblies 162, 166 disposed proximate the first side 182 of the housing 178. At approximately the same time, air is directed through the second air inlet 184, is processed by the HVAC system 196, through the floor tunnel assembly 240, and through the seat assemblies 164, 166 disposed proximate the second side 186 of the housing 178.

Each seat assembly 14 includes a seat air duct assembly 16 disposed in an interior 18 thereof. The seat air duct assembly 16 provides both heating and cooling of the seat assembly 14. The seat air duct assemblies 16 rotate with the respective seat assemblies 14 about the axis of rotation 170. Thus, as the seat assembly 14 rotates about the axis of rotation 170, the airflow relative to the occupant on the seat assembly 14 remains substantially unchanged.

Referring to fig. 10, each seat air duct assembly 16 includes a central air duct 290 coupled with the respective seat guide duct 28 and extending through the seat assembly 14. A central air duct 290 extends to the headrest 146 adjacent the housing 178. The seat air duct assembly 16 includes an air duct branch 292 extending therefrom. Air duct branch 292 generally includes foot branches 294, 296, base branch 298, arm branches 300, 302, and headrest branch 304. Each air duct branch 292 extends from the central air duct 290.

Foot branches 294, 296 are generally disposed within base support 140 of seat assembly 14. Foot branches 294 extend from central air duct 290 in a seat forward direction, and foot branches 296 extend from central air duct 290 in a seat rearward direction. Foot branches 294, 296 are shown extending from central air plenum 290 at substantially the same height relative to housing 178, but it is contemplated that foot branches 294, 296 may extend from central air plenum 290 at different heights without departing from the teachings herein. A base branch 298 is disposed downstream of foot branches 294, 296. The base branch 298 is disposed within the seat base 142 of the seat assembly. The base branch 298 extends generally vertically upward from the central air duct 290.

Arm branches 300, 302 are generally disposed downstream of base branch 298. Arm branches 300, 302 extend laterally from central air plenum 290, through seat back 144 and to support pads 148, 150. Arm branches 300 extend from the central air duct 290 to the support pad 148 in the right direction of the seat, while arm branches 302 extend from the central air duct 290 to the support pad 150 in the left direction of the seat. The arm branches 300, 302 are shown extending from the central air plenum 290 at substantially the same height relative to the housing 178, but it is contemplated that the arm branches 300, 302 may extend from the central air plenum 290 at different heights without departing from the teachings herein.

A headrest branch 304 is provided downstream of the arm branches 300, 302. Typically, the headrest branch 304 extends from a distal end 306 of the central air duct 290. The headrest branches 304 extend laterally from the central air duct 290 in each of the right and left seat directions. The headrest branch 304 extends laterally through the headrest 146.

Still referring to fig. 10 and 11, the central air duct 290 is rotatably coupled to the respective seat guide duct 28 to permit rotation of the seat assembly 14 and associated seat air duct assembly 16. At least one of the central air channel 290 and the seat guide channel 28 extend through the first surface 24 of the housing 178 to form a rotational engagement. Each seat guide channel 28 includes a radial flange 316 that engages an edge 318 of the central air channel 290. A radial flange 316 is disposed within the central air duct 290. The radial flange 316 extends outwardly and the rim 318 extends inwardly, thereby retaining the radial flange 316 on the rim 318 and preventing the seat guide channel 28 from disengaging from the central air channel 290. The radial flange 316 slidably engages the rim 318. The sliding engagement between radial flange 316 and rim 318 allows seat air duct assembly 16 to rotate about axis of rotation 170.

Referring to fig. 12-13B, each seat assembly 14 defines a plurality of vents 320 to exhaust air from the seat air duct assembly 16 to a passenger on the seat assembly 14. In the example shown, the plurality of vents 320 includes a foot vent 322, a rear vent 324, a first arm vent 326, a second arm vent 328, a base vent 330, and a headrest vent 332. Foot vents 322 are defined in the seat front of the base support 140 and rear vents 324 are defined in the seat rear of the base support 140. A first arm vent 326 is defined in the pillow frame 148 and a second arm vent 328 is defined in the pillow frame 150. A seat vent 330 is defined in the seat base 142 and a headrest vent 332 is defined in the headrest 146.

Generally, the air duct branches 292 are aligned with the vents 320 to direct air through the vents 320 to passengers on or near the seat assembly 14. Foot branches 294 direct air through foot vents 322 to the foot regions of the occupant on seat assembly 14. Foot branches 296 direct air through rear vents 324 to the foot regions of the occupant in adjacent seat assemblies 14. The base branch 298 directs air through the base vent 330 to the seat of the occupant in the seat assembly 14. The first arm branch 300 directs air through an arm vent 326 and the second arm branch 302 directs air through an arm vent 328 to provide air toward an arm region of a passenger on the seat assembly 14. The headrest branch 304 directs air through a headrest vent 332 to direct air to the head area of an occupant on the seat assembly 14. As the seat assembly 14 rotates, air continues to be exhausted in the same area relative to the occupant as the seat air duct assembly 16 rotates with the seat assembly 14.

Still referring to fig. 12-13B, the seat air duct assembly 16 generally includes a first shut-off valve 340 and a second shut-off valve 342. Each shut-off valve 340, 342 operates to close the central air duct 290 and prevent air from being further directed downstream in the central air duct 290. A first shut-off valve 340 is generally disposed downstream of foot branches 294, 296 and upstream of seat branch 298. Thus, air may be directed through the foot vents 322 and the rear vents 324, but not through the remaining ones of the vents 320 of the seat assembly 14. A second shut-off valve 342 is provided downstream of the base branch 298 and upstream of the arm branches 300, 302. Thus, air may be directed through the foot vents 322, the rear vents 324, and the base vents 330, but not through the remaining ones of the vents 320.

Each shut-off valve 340, 342 is operably coupled with a valve actuator 344 to adjust the respective shut-off valve 340, 342 between an open position and a closed position. In certain aspects, each shut-off valve 340, 342 may be a motorized damper with a rotating wing to open and close the central air duct 290. Each valve actuator 344 may be a plurality of gears, rack and pinion assemblies, rails, rotating assemblies, motorized assemblies, or other viable electromechanical configurations. Each of the shut-off valves 340, 342 may be configured as a sliding or rotating flap or flaps within the central air duct 290 that adjust between different positions to open and close the central air duct 290.

Referring to fig. 14 and 1-13, the HVAC unit 10 includes a controller 360 for controlling various aspects of the HVAC unit 10. The controller 360 includes a processor 362, a memory 364, and other control circuitry. Instructions or programs 366 are stored in the memory 364 and are executable by the processor 362. The controller 360 communicates with the HVAC system 82 or HVAC systems 194, 196 depending on the configuration of the HVAC assembly 20. The controller 360 activates the HVAC system 82 or HVAC systems 194, 196 to process air entering the HVAC assembly 20. In examples having dual HVAC systems 194, 196, the controller 360 may selectively and independently activate each HVAC system 194, 196.

The controller 360 is also in communication with valve actuators 344 associated with the first and second shut-off valves 340, 342 to control the flow of air to the passengers. The controller 360 may selectively and independently activate each valve actuator 344 to provide a customizable airflow experience to the occupant in each seat assembly 14.

Additionally, the controller 360 may be in communication with a rotary actuator 368 associated with the rotary support 260 to rotate the seat assembly 14 to a selected position. Each rotary support 260 is operably coupled with a rotary actuator 368 for rotating the rotary support 260 relative to the rotation axis 170. The rotary actuator 368 may be disposed within the HVAC assembly 20 and substantially invisible to a passenger. The rotary actuator 368 may be a motorized turntable, motorized track assembly, rotary actuator, gear assembly, or other viable configuration. Each rotational support 260 may be independently rotated about a respective rotational axis 170 to selectively and independently rotate the seat assembly 14.

The controller 360 may be in communication with a user interface 370 that receives input from a passenger or other user. The user interface 370 may include a display 372, a microphone 374, a sensor 376, or a combination thereof to receive input. Depending on the configuration of the user interface 370, the user interface 370 may receive touch input on the display 372, voice commands through the microphone 374, and/or gestures with the sensor 376. The user interface 370 receives input and communicates the input to the controller 360. The controller 360 may then control various aspects of the HVAC unit 10 in response to the inputs, including, but not limited to, the airflow path through each seat air duct assembly 16 and the position of each seat assembly 14.

The use of the present device may provide a number of advantages. For example, the HVAC assembly 20 is disposed on the platform 48, thereby providing additional space within the interior compartment 66 of the vehicle 12. In addition, the HVAC assembly 20 is a stand-alone module that may be used with various configurations of the vehicle body 46. Moreover, the HVAC assemblies 20 may direct air into each seat assembly 14. In addition, the HVAC assembly 20 may direct air into each seat assembly 14 and into the battery 50 within the platform 48. In addition, the first and second shut-off valves 340, 342 may be independently operable to open and close portions of the central air duct 290 of each seat assembly 14. In addition, the seat air duct assemblies 16 rotate with the corresponding seat assemblies 14 and provide substantially similar HVAC experiences to occupants of the seat assemblies 14 at various locations of the seat assemblies 14 about the axis of rotation 170. In addition, the rotation of the seat air duct assembly 16 with the seat assembly 14 provides greater flexibility to the seat assembly 14 without affecting the airflow provided to the occupant. Moreover, the configuration and positioning of the HVAC assembly 20 may improve the experience of the occupants within the vehicle 12. Further, in the BEV example, the positioning of the HVAC assembly 20 provides space for a more dynamic interior in which the HVAC assembly 20 is not used to cool the internal combustion engine. Additional benefits or advantages may also be realized and/or attained.

According to various examples, a vehicle hvac unit includes a seat assembly having a seat air duct assembly disposed in an interior of the seat assembly. A hvac assembly includes a housing having a first surface and a second surface. The seat assembly is disposed on the first surface of the housing. The seat guide air duct is arranged in the shell. The seat guide air duct is in fluid communication with the seat air duct assembly and an air inlet defined by the housing. The condenser is disposed in the housing proximate the air inlet and the evaporator is disposed in the housing proximate the inlet of the seat guide air duct. Embodiments of the present disclosure may include one or a combination of the following features:

-a blower motor disposed in the housing proximate the inlet of the seat guide duct, wherein the blower motor is configured to direct air through the inlet of the seat guide duct;

-a battery guide duct disposed within the housing, wherein the battery guide duct defines a ventilation opening in fluid communication with the ventilation opening defined by the second surface of the housing to direct air to a battery;

-a platform housing the battery, wherein the hvac assembly is provided on the platform;

-a tunnel connector disposed within the housing, wherein each of the seat guide tunnel and the battery guide tunnel is coupled to the tunnel connector, and wherein the tunnel connector is disposed proximate to the evaporator;

-the seat air duct assembly includes a central air duct extending from proximate the first surface of the housing to proximate a headrest of the seat assembly; and

-the central air duct is rotatably coupled to the seat guide duct to allow rotation of the seat assembly relative to the housing.

According to various examples, a hvac unit for a vehicle includes an hvac assembly including a housing defining an air intake. The housing has a first surface and a second surface opposite the first surface. The floor air duct assembly is disposed within the housing. The floor tunnel assembly includes at least one seat guide tunnel. The blower motor is disposed proximate to an inlet of the at least one seat guide air duct. The blower motor is configured to direct air through the inlet. At least one seat assembly is operatively coupled to the first surface of the housing. The at least one seat assembly defines at least one vent. The at least one seat assembly includes a seat air duct assembly in fluid communication with the floor air duct assembly to direct air through the at least one vent. Embodiments of the present disclosure may include one or a combination of the following features:

-the at least one seat assembly comprises a first seat assembly and a second seat assembly, wherein the at least one seat guide channel comprises a first seat guide channel fluidly coupled to the first seat assembly and a second seat guide channel fluidly coupled to the second seat assembly;

-the at least one vent comprises a plurality of vents defined by the at least one seat assembly, wherein the seat air duct assembly comprises a central air duct and air duct branches extending from the central air duct, and wherein each air duct branch directs air from the central air duct to at least one of the plurality of vents;

-the plurality of vents includes a foot vent, an arm vent, a seat base vent, and a headrest vent;

-the seat air duct assembly comprises a shut-off valve for selectively opening and closing the seat air duct assembly;

-a rotational support disposed at least partially within the housing and operatively coupled to the at least one seat assembly, wherein the rotational support is configured to rotate the at least one seat assembly about an axis of rotation;

-the at least one seat guide channel of the floor tunnel assembly extending through the rotary support to couple with the seat air tunnel assembly; and

-the floor tunnel assembly comprises a battery guide tunnel, wherein the battery guide tunnel directs air towards a battery through a ventilation opening defined in the second surface of the housing.

According to various examples, a hvac unit for a vehicle includes a housing defining an interior. The housing defines an air inlet fluidly coupled with the interior. The housing defines a first vent opening on a first surface thereof and a second vent opening on a second surface thereof. A floor tunnel assembly is disposed in the interior of the housing. The floor air duct assembly includes a battery guide air duct in fluid communication with the air inlet and the first ventilation opening. The battery guide duct is configured to guide air toward a battery. A seat guide air duct is in fluid communication with the air inlet and the second ventilation opening. The seat guide air duct is configured to direct air toward the seat assembly. Embodiments of the present disclosure may include one or a combination of the following features:

-a hvac system disposed in the interior of the housing, wherein the hvac system is in fluid communication with the air intake and the floor tunnel assembly;

-a rotational support operatively coupled to the seat assembly, and wherein the seat assembly is rotatable relative to the housing via the rotational support;

-a platform accommodating the battery, wherein the housing is provided on the platform;

-a tunnel connector coupled to the battery guide tunnel and the seat guide tunnel; and

-a blower motor disposed proximate to the air duct connector to direct air from the air inlet into each of the battery guide air duct and the seat guide air duct.

For the purposes of this disclosure, the term "coupled" (in all forms thereof: coupled, etc.) generally means that two components (electrical or mechanical) are connected to each other either directly or indirectly. Such engagement may be stationary in nature or movable in nature. Such connection may be achieved with two components (electrical or mechanical) and any additional intermediate members may be integrally formed with each other or with the two components as a single unitary body. Unless otherwise indicated, such connection may be permanent in nature or may be removable or releasable in nature.

The various illustrative logical blocks, modules, controllers, and circuits described in connection with the embodiments disclosed herein may be implemented or performed with an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), a general purpose processor, a Digital Signal Processor (DSP) or other logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general purpose processor may be any conventional processor, controller, microcontroller, state machine, or the like. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

It is also important to note that the construction and arrangement of the elements of the present invention as shown in the illustrative examples are illustrative only. Although only a few examples of the present innovations have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, elements shown as integrally formed may be constructed of multiple parts or elements shown as multiple parts may be integrally formed, the operation of the interface may be reversed or otherwise varied, the length or width of the structures and/or members or other elements of the connector or system may be altered, the nature or number of adjustment positions provided between the elements may be varied. It should be noted that the elements and/or assemblies of the system may be constructed of any of a variety of materials that provide sufficient strength or durability in any of a variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of present innovation. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the desired and other exemplary embodiments without departing from the spirit of the present innovations.

Modifications of the disclosure will occur to those skilled in the art and to those who make or use the disclosure. It is, therefore, to be understood that the embodiments shown in the drawings and described above are for illustrative purposes only and are not intended to limit the scope of the present disclosure as defined by the appended claims as interpreted in accordance with the principles of patent law, including the doctrine of equivalents.

It should be understood that variations and modifications can be made to the foregoing structures without departing from the concepts of the present disclosure, and it should also be understood that such concepts are intended to be covered by the appended claims unless these claims by their language expressly state otherwise.

According to the present invention, there is provided a vehicle heating, ventilation and air conditioning unit having: a seat assembly having a seat air duct assembly disposed in an interior of the seat assembly; and a heating ventilation air conditioning assembly, the heating ventilation air conditioning assembly comprising: a housing having a first surface and a second surface, wherein the seat assembly is disposed on the first surface of the housing; a seat guide air duct disposed within the housing, wherein the seat guide air duct is in fluid communication with the seat air duct assembly and an air inlet defined by the housing; the condenser is arranged in the shell close to the air inlet; and the evaporator is arranged in the shell close to the inlet of the seat guide air duct.

According to one embodiment, the invention is further characterized in that: a blower motor disposed in the housing proximate the inlet of the seat guide air duct, wherein the blower motor is configured to direct air through the inlet of the seat guide air duct.

According to one embodiment, the invention is further characterized in that: a battery guide air duct disposed within the housing, wherein the battery guide air duct defines a ventilation opening in fluid communication with the ventilation opening defined by the second surface of the housing to direct air to the battery.

According to one embodiment, the invention is further characterized in that: a platform housing the battery, wherein the hvac assembly is disposed on the platform.

According to one embodiment, the invention is further characterized in that: a tunnel connector disposed within the housing, wherein each of the seat guide tunnel and the battery guide tunnel is coupled to the tunnel connector, and wherein the tunnel connector is disposed proximate to the evaporator.

According to one embodiment, the seat air duct assembly includes a central air duct extending from proximate the first surface of the housing to proximate a headrest of the seat assembly.

According to one embodiment, the central air duct is rotatably coupled to the seat guide duct to allow rotation of the seat assembly relative to the housing.

According to the present invention, there is provided a heating, ventilation and air conditioning unit for a vehicle, having: heating ventilation air conditioning assembly, heating ventilation air conditioning assembly includes: a housing defining an air inlet, wherein the housing has a first surface and a second surface opposite the first surface; a floor tunnel assembly disposed within the housing, wherein the floor tunnel assembly includes at least one seat guide tunnel; and a blower motor disposed proximate an inlet of the at least one seat guide air duct, wherein the blower motor is configured to direct air through the inlet; and at least one seat assembly operatively coupled to the first surface of the housing, wherein the at least one seat assembly defines at least one vent, and wherein the at least one seat assembly includes a seat air duct assembly in fluid communication with the floor duct assembly to direct air through the at least one vent.

According to one embodiment, the at least one seat assembly includes a first seat assembly and a second seat assembly, wherein the at least one seat guide channel includes a first seat guide channel fluidly coupled to the first seat assembly and a second seat guide channel fluidly coupled to the second seat assembly.

According to one embodiment, the at least one vent comprises a plurality of vents defined by the at least one seat assembly, wherein the seat air duct assembly comprises a central air duct and air duct branches extending from the central air duct, and wherein each air duct branch directs air from the central air duct to at least one of the plurality of vents.

According to one embodiment, the plurality of vents includes a foot vent, an arm vent, a seat base vent, and a headrest vent.

According to one embodiment, the seat air duct assembly includes a shut-off valve for selectively opening and closing the seat air duct assembly.

According to one embodiment, the invention is further characterized in that: a rotational support disposed at least partially within the housing and operably coupled to the at least one seat assembly, wherein the rotational support is configured to rotate the at least one seat assembly about an axis of rotation.

According to one embodiment, the at least one seat guide air channel of the floor air channel assembly extends through the rotary support to couple with the seat air channel assembly.

According to one embodiment, the floor tunnel assembly includes a battery guide tunnel, wherein the battery guide tunnel directs air toward a battery through a ventilation opening defined in the second surface of the housing.

According to the present invention, there is provided a heating ventilation and air conditioning assembly for a vehicle, having: a housing defining an interior, wherein the housing defines an air inlet fluidly coupled with the interior, and wherein the housing defines a first ventilation opening on a first surface thereof and a second ventilation opening on a second surface thereof; and a floor air duct assembly disposed in the interior of the housing, wherein the floor air duct assembly comprises: a battery guide duct in fluid communication with the air inlet and the first ventilation opening, wherein the battery guide duct is configured to direct air toward a battery; and a seat guide air duct in fluid communication with the air inlet and the second ventilation opening, wherein the seat guide air duct is configured to direct air toward a seat assembly.

According to one embodiment, the invention is further characterized in that: a hvac system disposed in the interior of the housing, wherein the hvac system is in fluid communication with the air intake and the floor tunnel assembly.

According to one embodiment, the invention is further characterized in that: a rotational support operably coupled to the seat assembly, and wherein the seat assembly is rotatable relative to the housing via the rotational support.

According to one embodiment, the invention is further characterized in that: a platform for receiving the battery, wherein the housing is disposed on the platform.

According to one embodiment, the invention is further characterized in that: a tunnel connector coupled to the battery guide tunnel and the seat guide tunnel; and a blower motor disposed proximate the air duct connector to direct air from the air inlet into each of the battery guide air duct and the seat guide air duct.

Claims (15)

1. A hvac unit for a vehicle comprising:

heating ventilation air conditioning assembly, heating ventilation air conditioning assembly includes:

A housing defining an air inlet, wherein the housing has a first surface and a second surface opposite the first surface;

a floor tunnel assembly disposed within the housing, wherein the floor tunnel assembly includes at least one seat guide tunnel; and

a blower motor disposed proximate an inlet of the at least one seat guide air duct, wherein the blower motor is configured to direct air through the inlet; and

at least one seat assembly operatively coupled to the first surface of the housing, wherein the at least one seat assembly defines at least one vent, and wherein the at least one seat assembly includes a seat air duct assembly in fluid communication with the floor duct assembly to direct air through the at least one vent.

2. The hvac unit of claim 1, wherein the at least one seat assembly comprises a first seat assembly and a second seat assembly, wherein the at least one seat pilot air duct comprises a first seat pilot air duct fluidly coupled to the first seat assembly and a second seat pilot air duct fluidly coupled to the second seat assembly.

3. The hvac unit of claim 1, wherein the at least one vent comprises a plurality of vents defined by the at least one seat assembly.

4. A hvac unit as set forth in claim 3, wherein said seat air duct assembly includes a central air duct and an air duct branch extending from said central air duct.

5. The hvac unit of claim 4, wherein each air duct branch directs air from the central air duct to at least one of the plurality of vents.

6. A hvac unit as set forth in claim 3, wherein said plurality of vents comprises a foot vent, an arm vent, a seat base vent, and a headrest vent.

7. The hvac unit of claim 1, wherein the seat air duct assembly includes a shut-off valve for selectively opening and closing the seat air duct assembly.

8. The hvac unit of claim 1, further comprising:

a rotational support disposed at least partially within the housing and operably coupled to the at least one seat assembly, wherein the rotational support is configured to rotate the at least one seat assembly about an axis of rotation.

9. The hvac unit of claim 8, wherein the at least one seat guide air duct of the floor air duct assembly extends through the rotary support to couple with the seat air duct assembly.

10. The hvac unit of claim 1, wherein the floor air duct assembly includes a battery guide air duct, wherein the battery guide air duct directs air toward a battery through a ventilation opening defined in the second surface of the housing.

11. The hvac unit of claim 10, further comprising:

a platform housing the battery, wherein the hvac assembly is disposed on the platform.

12. The hvac unit of claim 10, further comprising:

a tunnel connector disposed within the housing, wherein each of the at least one seat guide tunnel and the battery guide tunnel is coupled to the tunnel connector, and wherein the tunnel connector is disposed proximate to an evaporator.

13. The hvac unit of claim 1, wherein the seat air duct assembly includes a central air duct rotatably coupled to the at least one seat guide duct to allow rotation of the at least one seat assembly relative to the housing.

14. The hvac unit of claim 13, wherein the central air duct extends from proximate the first surface of the housing to proximate a headrest of the at least one seat assembly.

15. The hvac unit of any one of claims 1-14, further comprising:

a hvac system disposed in the interior of the housing, wherein the hvac system is in fluid communication with the air intake and the floor tunnel assembly.