Cabin air control system with single adsorption unit

Abstract

A cabin air control system (100) for a vehicle, comprising: an upper housing (1); a lower case (2); a single adsorption unit (3) configured to adsorb moisture and / or carbon dioxide and / or harmful gases; and a heater (4) configured to heat the air before the air is conveyed to the adsorption unit (3), the heated air being used to regenerate the adsorption unit (3). The adsorption unit (3) extends along an adsorption unit longitudinal axis (301), has a hollow surrounding cross-section in a plane perpendicular to the adsorption unit longitudinal axis (301), has an opening (302) at the top thereof, and the heater (4) abuts the adsorption unit (3) and at least partially covers the opening (302).

Description

Technical Field

[0001] The present invention relates to heating, ventilation and air conditioning (HVAC) systems for vehicles, and more particularly to cabin air control systems for HVAC systems. Background Art

[0002] In most motor vehicles, it is necessary to save as much energy as possible while the vehicle is in motion in order to achieve the best possible mileage. Typically, for reasons of comfort, the driver and passengers can adjust the air temperature and humidity of the passenger compartment of the motor vehicle with the aid of an HVAC system.

[0003] The HVAC system can be operated in an out-circulation mode or in an air recirculation (i.e., in-circulation) mode. By controlling the air conditioning device (regulation of the recirculation / recirculation mode) and increasing the operating time in the recirculation mode (wherein the air in the passenger compartment is recirculated and air-conditioned (heated or cooled) in the recirculation operation), the air conditioning device will draw as little fresh air as possible from the external environment of the motor vehicle and heat (in winter) or cool (in summer) the fresh air, and regulate the cabin air temperature and humidity by means of cabin air recirculation in the recirculation mode to achieve the desired energy savings.

[0004] However, during operation in the above-mentioned recirculation mode, the water vapor exhaled by the driver and passengers will cause fogging on the glass (windshield or side windows) of the vehicle, which will bring unpredictable dangers to the driver and passengers of the vehicle. If the defog mode is continuously turned on, this will increase power consumption and reduce the mileage of the vehicle, thereby failing to achieve the purpose of energy saving.

[0005] In addition, in the air recirculation mode, CO2 exhaled by the driver and passengers may also accumulate in the passenger compartment. This will cause the driver to become drowsy during driving, which may bring potential danger to the normal operation of the vehicle. For the safety of vehicle operation and the health of the driver and passengers, it is necessary to prevent and reduce the occurrence of this situation, so as to avoid that the driver's concentration may be greatly reduced due to the high concentration of carbon dioxide in the air in the passenger compartment, thereby avoiding potential danger to the normal operation of the vehicle.

[0006] At present, a dual adsorption unit structure including a first adsorption unit and a second adsorption unit has been proposed. However, the dual adsorption unit structure has a large volume, which increases the difficulty of vehicle layout; it is heavy, and the dual adsorption unit structure itself needs to add more parts to strengthen the structure; in addition, the cost is high, and the dual adsorption unit needs to manage two heaters and two motors separately.

[0007] To this end, it is desired to develop a single adsorption unit structure that ensures performance, has a relatively small size, has a relatively light weight, adopts a single heater and a single motor to achieve operational control, reduces manufacturing costs, greatly improves the compatibility of vehicle air control systems, and at the same time meets the basic functions of vehicle energy saving, thereby improving the market competitiveness of the system. Summary of the invention

[0008] An object of the present disclosure is to provide an integrated cabin air control system which has a simple structure, a reduced number of components, and is easy to assemble.

[0009] Another object of the present disclosure is to provide an integrated cabin air control system that enhances heat transfer efficiency, thereby saving energy.

[0010] In one aspect, a cabin air control system is provided. The cabin air control system comprises:

[0011] The upper housing comprises:

[0012] First end;

[0013] an opposite second end;

[0014] an air inlet passage having an inlet opening at a first end of the upper housing; and a heater chamber in communication with the air inlet passage;

[0015] The lower housing comprises:

[0016] First end;

[0017] an opposite second end; and

[0018] an outlet passage having an outlet opening and an exhaust duct at a first end of the lower housing,

[0019] The outlet passage selectively communicates with the outlet opening and the exhaust duct,

[0020] wherein the upper shell and the lower shell together define an adsorption unit chamber that is in communication with the outlet channel;

[0021] A single adsorption unit disposed in the adsorption unit chamber, the adsorption unit being configured to adsorb moisture and / or carbon dioxide and / or harmful gases; and

[0022] a heater disposed in the heater chamber, the heater being configured to heat the air before the air is delivered to the adsorption unit, the heated air being used to regenerate the adsorption unit,

[0023] The adsorption unit extends along the longitudinal axis of the adsorption unit, has a hollow enclosed cross section in a plane perpendicular to the longitudinal axis of the adsorption unit, has an opening at its top side, and the heater abuts the adsorption unit and at least partially covers the opening.

[0024] Preferably, the heater covers at least 80% of the opening.

[0025] Preferably, the cabin air control system further comprises: a flap control assembly configured to switch between the adsorption mode and the regeneration mode, the flap control assembly comprising an outlet flap, the outlet flap being configured to rotate between a first outlet position corresponding to the adsorption mode and a second outlet position corresponding to the regeneration mode,

[0026] wherein, in the first outlet position, the outlet opening is configured to be open and the exhaust duct is configured to be closed by the outlet flap, so that the adsorbed and / or purified air flows into the cabin via the outlet opening, and

[0027] In the second outlet position, the outlet opening is configured to be closed by the outlet flap and the exhaust duct is configured to be open, so that the regenerated exhaust gas comprising gas and water flows through the exhaust duct to the environment.

[0028] Preferably, the flap control assembly further comprises an outlet flap coupling connected to the driving mechanism.

[0029] Preferably, the outlet flap comprises a blocking pad at an end remote from the drive mechanism,

[0030] In a first outlet position, the blocking pad is configured to block the exhaust duct, and

[0031] In the second outlet position, the blocking pad is configured to not block the exhaust duct.

[0032] Preferably, the adsorption unit comprises a water vapor adsorption material.

[0033] Preferably, the adsorption unit comprises a carbon dioxide adsorption material.

[0034] Preferably, the adsorption unit comprises harmful gas adsorption material.

[0035] Preferably, the heater includes a mounting flange configured to engage and seal against a mounting structure of the upper housing when the heater is mounted in place in the upper housing.

[0036] Preferably, the adsorption unit is U-shaped or semicircular in a cross section perpendicular to a longitudinal axis of the adsorption unit.

[0037] In the cabin air control system of the present invention, the adsorption unit has a hollow enclosing cross section in a plane perpendicular to the longitudinal axis of the adsorption unit, the heater is adjacent to the adsorption unit and at least partially covers the opening, and the heated air will immediately flow to the enclosing adsorption unit in a divergent manner. This can greatly shorten the heat transfer path and improve the heat transfer efficiency, thereby saving energy for operating the cabin air control system.

[0038] In addition, the air will flow through the heater before entering the adsorption unit. By configuring the pore size of the heater, the flow resistance created by the heater will slow down the air without substantially blocking the air, thereby extending the residence time of the air in the adsorption unit. This will enhance the adsorption of moisture and / or carbon dioxide and / or harmful gases in the air.

[0039] With the aid of the structural design of a single adsorption unit, the cabin air control system of the present invention has a simple structure, reduces the number of components and volume of the cabin air control system, and is easy to assemble while ensuring the performance of the cabin air control system, which greatly improves the vehicle compatibility of the cabin air control system.

[0040] In addition, with the help of the structural design of a single adsorption unit, the cabin air control system of the present invention is relatively light in weight while ensuring the performance of the cabin air control system, which reduces production costs and facilitates the installation and maintenance of the cabin air control system on the entire vehicle.

[0041] Further areas of applicability of the present disclosure will become apparent from the detailed description, claims and drawings.The detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present disclosure will be more fully understood from the detailed description and accompanying drawings.

[0043] Figure 1 is a schematic perspective view of a cabin air control system of the present invention.

[0044] Figure 2 It is a schematic structural explosion diagram of the cabin air control system of the present invention.

[0045] Figure 3 It is a schematic structural explosion diagram of the flap control assembly of the cabin air control system of the present invention.

[0046] Figure 4 is a top view of the cabin air control system of the present invention.

[0047] Figure 5 It is a front view of the cabin air control system of the present invention.

[0048] Figure 6 is a side view of the upper shell and the lower shell of the cabin air control system of the present invention.

[0049] Figure 7 The adsorption mode of the cabin air control system of the present invention is schematically shown in cross-section.

[0050] Figure 8 The regeneration mode of the cabin air control system of the present invention is schematically shown in cross-section.

[0051] Fig. 9 is a schematic perspective view of a heater of a cabin air control system of the present invention.

[0052] Fig.10 is a schematic perspective view of a flap control assembly of a cabin air control system of the present invention.

[0053] Fig.11 is a schematic partial perspective view of the cabin air control system of the present invention, wherein the outlet flap is located in a first outlet position corresponding to the adsorption mode.

[0054] Fig.12 is a schematic partial perspective view of a cabin air control system of the present invention, wherein the outlet flap is located in a second outlet position corresponding to the regeneration mode.

[0055] Fig.13 is a schematic perspective view of a heater and an adsorption unit of a cabin air control system of the present invention.

[0056] Fig.14 is a schematic longitudinal cross-sectional view of a heater and an adsorption unit of a cabin air control system of the present invention.

[0057] Fig.15 is a schematic top view of a heater and an adsorption unit of a cabin air control system of the present invention.

[0058] Fig.16 is a schematic front view of a heater and an adsorption unit of a cabin air control system of the present invention.

[0059] Fig.17 is a schematic end view of a heater and adsorption unit of the cabin air control system of the present invention. DETAILED DESCRIPTION

[0060] As used herein, words such as “upper,” “lower,” “left,” and “right” used herein to define directions generally refer to and are understood as directions associated with the drawings and directions in actual applications.

[0061] As used herein, the term "vehicle" may be used interchangeably and synonymously to include any relevant vehicle platform, such as passenger vehicles (ICE, HEV, FEV, fuel cell, fully and partially autonomous, etc.), commercial vehicles, industrial vehicles, tracked vehicles, off-road and all-terrain vehicles (ATVs), motorcycles, agricultural equipment, marine vessels, aircraft, etc. In an example, an electric vehicle includes a body with a passenger cabin, a plurality of wheels mounted to the body, and other standard original equipment. The electrified powertrain includes one or more vehicle-mounted traction motors that operate alone (e.g., for a FEV powertrain) or in combination with an internal combustion engine assembly (e.g., for a HEV powertrain) to selectively drive one or more wheels to propel the vehicle.

[0062] As used herein, the term "enclosing cross-section" may be used to describe a cross-section that extends around an axis and partially or fully encloses the axis.

[0063] Referring now to the drawings, wherein like reference numerals refer to like features throughout the several views, Figure 1 is a schematic diagram of a cabin air control system 100 of the present invention; Figure 2 is a schematic structural explosion diagram of the cabin air control system 100 of the present invention.

[0064] The cabin air control system 100 may include an upper shell 1; a lower shell 2; a single adsorption unit 3; a heater 4; and a flap control assembly 5 configured to switch between an adsorption mode and a regeneration mode. The cabin air control system 100 may include other components as needed, such as a controller, at least one sensor, etc., without departing from the scope of the present disclosure.

[0065] By virtue of the structural design of the single adsorption unit 3, the cabin air control system 100 of the present invention has a simple structure, reduces the number of components and the volume of the cabin air control system 100, and is easy to assemble, while ensuring the performance of the cabin air control system 100, which greatly improves the vehicle compatibility of the cabin air control system 100. In addition, by virtue of the structural design of the single adsorption unit 3, the cabin air control system 100 of the present invention is relatively light in weight, while ensuring the performance of the cabin air control system 100, which reduces the production cost and facilitates the installation and maintenance of the cabin air control system 100 on the whole vehicle. The cabin air control system 100 of the present invention adopts a single heater to achieve operation control, which reduces the cost of the cabin air control system 100 and improves the market competitiveness of the cabin air control system 100.

[0066] Figure 4 1 is a top view of the cabin air control system 100 of the present invention. Figure 5 is a front view of a cabin air control system 100 of the present invention. Figure 6 1 is a side view of the upper shell 1 and the lower shell 2 of the cabin air control system 100 of the present invention.

[0067] As a non-limiting example, the upper housing 1 may include a first end 101 and an opposite second end 102; an air inlet passage 103 (eg, Figure 7 and Figure 8 ), which has an inlet opening 9 at a first end 101 of the upper shell 1; and a heater chamber 104 communicating with an air inlet passage 103.

[0068] As a non-limiting example, the upper housing 1 may further include a mounting structure 10 for the heater 4 to mount and fix the heater 4. The upper housing 1 may include other components as needed without departing from the scope of the present disclosure.

[0069] As a non-limiting example, the lower shell 2 may include a first end 131 and an opposite second end 132; and an outlet passage 115 (eg, Figure 7 ), outlet opening 12 and exhaust duct 13. Outlet passage 115 selectively communicates with outlet opening 12 and exhaust duct 13, depending on the operation mode of cabin air control system 100. As a non-limiting example, upper shell 1 and lower shell 2 together define adsorption unit chamber 16 communicated with outlet passage 115.

[0070] In addition, the lower housing 2 may further include a motor positioning and mounting structure (not shown) to position and mount the drive mechanism 6. The lower housing 2 may further include an outlet flap mounting structure (not shown) to mount the outlet flap 8 so as to ensure the normal control and sealing function of the outlet flap 8.

[0071] The lower shell 2 and the upper shell 1 may also include an installation and sealing structure (not shown) for the adsorption unit 3 to install and fix the adsorption unit 3 and cooperate with a sealing strip (not shown) on the adsorption unit 3 to achieve sealing of the cabin air control system relative to the environment. At the same time, the installation and sealing structure serves to separate the wet side from the dry side.

[0072] The adsorption unit 3 is disposed in the adsorption unit chamber 16 and is configured to adsorb moisture and / or carbon dioxide and / or harmful gases. The adsorption unit 3 can be filled with water vapor adsorption material, carbon dioxide adsorption material, volatile adsorption material or adsorption material for adsorbing other harmful substances according to customer needs. As a non-limiting example, the adsorption material may include a resin having a certain adsorption capacity at room temperature and a desorption capacity at a temperature of 80-120°C. By utilizing the low-temperature adsorption and high-temperature desorption characteristics of the resin, the air quality in the cabin is well controlled. However, as will be appreciated by those skilled in the art, the adsorption material may be made of any suitable material without departing from the scope of the present disclosure.

[0073] The heater 4 is disposed in the regeneration air chamber 15 and is configured to heat the air before the air is delivered to the adsorption unit 3 . The heated air is used to regenerate the adsorption unit 3 .

[0074] Figure 3 It is a schematic structural explosion diagram of the flap control assembly 5 of the cabin air control system 100 of the present invention. Fig.10 is a schematic perspective view of the flap control assembly 5 of the cabin air control system 100 of the present invention. Fig.11 is a schematic partial perspective view of the cabin air control system 100 of the present invention, wherein the outlet flap 8 is located in the first outlet position corresponding to the adsorption mode. Fig.12 is a schematic partial perspective view of the cabin air control system 100 of the present invention, wherein the outlet flap 8 is located in the second outlet position corresponding to the regeneration mode.

[0075] The flap control assembly 5 includes a drive mechanism 6, an outlet flap coupling 7 connected to the drive mechanism 6, and an outlet flap 8, wherein the outlet flap 8 is configured to rotate between a first outlet position corresponding to the adsorption mode and a second outlet position corresponding to the regeneration mode. Fig.11 As shown in , the outlet opening 12 is open and the exhaust duct 13 is closed by the outlet flap 8, so that the adsorbed and / or purified air flows into the cabin through the outlet opening 12; in the second outlet position, for example Fig.12 As shown in FIG. 1 , the outlet opening 12 is closed by the outlet flap 8 and the exhaust gas duct 13 is open, so that the exhaust gas comprising gas and water after regeneration flows through the exhaust gas duct 13 to the environment.

[0076] As a non-limiting example, the drive mechanism 6 is an electric motor for fully automatic control with the aid of control logic and sensor signals. However, the drive mechanism 6 may also include any other suitable drive mechanism, such as a hydraulic motor, without departing from the scope of the present disclosure.

[0077] As will be appreciated by those skilled in the art, the flap control assembly 5 may also utilize other suitable configurations without departing from the scope of the present disclosure.

[0078] Figure 7 The adsorption mode of the cabin air control system 100 of the present invention is schematically shown in cross-section. Figure 8 The regeneration mode of the cabin air control system 100 of the present invention is schematically shown in a cross-sectional view. The outlet flap 8 is provided with a blocking pad 106 at one end away from the drive mechanism 6. In the first outlet position, the blocking pad 106 blocks the exhaust duct 13; and in the second outlet position, the blocking pad 106 does not block the exhaust duct 13.

[0079] When the cabin air control system is in adsorption mode ( Figure 7 ), air with high humidity and / or high CO2 concentration is delivered to the air inlet passage 103 by an air conditioning fan (not shown), and the air is then delivered to the adsorption unit 3 via the adsorption chamber 16. The air is dehumidified and / or purified, and then the air flows through the outlet opening 12 and returns to the air conditioning system and is distributed to various areas of the cab as needed.

[0080] When the cabin air control system is in regeneration mode ( Figure 8 ), air is delivered to the air inlet passage 12 by the air conditioning fan, and then the air is delivered to the heater 4 via the regeneration air chamber 15. The heater 4 is in operation, the air is heated to a set temperature, and the heated air is then delivered to the adsorption unit 3, and the adsorption material in the adsorption unit 3 is regenerated. The regenerated exhaust gas including gas such as CO2 and water flows to the environment through the exhaust pipe 14.

[0081] In addition, the cabin air control system 100 also includes a controller, a first gas sensor (not shown) arranged near the outlet opening 12, and a second gas sensor (not shown) arranged near the exhaust duct 13, the first gas sensor being configured to monitor the humidity level and / or carbon dioxide level and / or harmful gas level of the outlet opening 12, and the second gas sensor being configured to monitor the humidity level and / or carbon dioxide level and / or harmful gas level of the exhaust duct 13.

[0082] The cabin air control system 100 is configured to operate in a regeneration mode or an adsorption mode based on output signals of the first gas sensor and the second gas sensor.

[0083] Fig. 9is a schematic perspective view of the heater 4 of the cabin air control system 100 of the present invention. The heater 4 includes at least one temperature sensor (not shown), which is capable of effectively monitoring the temperature change of the heater 4, and preventing accidents caused by overheating of the heater and failures caused by heater failure, as well as controlling the regeneration temperature. As a non-limiting example, the heater 4 includes two temperature sensors. However, as will be understood by those skilled in the art, the heater 4 may include any suitable number of temperature sensors 26 without departing from the scope of the present disclosure.

[0084] The heater 4 also includes a heating wire 20. By configuring the pore size of the heater 4, the flow resistance generated by the heater 4 will slow down the speed of the air without substantially blocking the air, thereby extending the residence time of the air in the adsorption unit 3. This will enhance the adsorption of moisture and / or carbon dioxide and / or harmful gases in the air.

[0085] The heater 4 also includes a mounting flange 27 that engages and seals against the mounting structure 10 of the upper housing 1 when the heater 4 is installed in place in the upper housing 1. The heater 4 also includes a power plug interface 22 for connecting the heater 4 to a power source. As will be appreciated by those skilled in the art, the heater 4 may include other components as desired without departing from the scope of the present disclosure.

[0086] The cabin air control system 100 uses a single adsorption unit 3 , a single motor, and a single heater 4 , which together reduce the complexity of the control logic and reduce the control cost of the cabin air control system 100 .

[0087] Fig.13 1 is a schematic perspective view of the heater 4 and the adsorption unit 3 of the cabin air control system 100 of the present invention. Fig.14 is a schematic longitudinal sectional view of the heater 4 and the adsorption unit 3 of the cabin air control system 100 of the present invention. Fig.15 1 is a schematic top view of the heater 4 and the adsorption unit 3 of the cabin air control system 100 of the present invention. Fig.16 4 is a schematic front view of the heater 4 and the adsorption unit 3 of the cabin air control system 100 of the present invention. Fig.17is a schematic end view of the heater 4 and the adsorption unit 3 of the cabin air control system 100 of the present invention. As shown in the figure, the adsorption unit 3 extends along the longitudinal axis 301 of the adsorption unit, has a hollow enclosed cross-section in a plane perpendicular to the longitudinal axis 301 of the adsorption unit, and has an opening 302 at its upper side; the heater 4 is adjacent to the adsorption unit 3 and at least partially covers the opening 302. As a non-limiting example, the heater 4 covers at least 80% of the opening 302. As will be appreciated by those skilled in the art, the heater 4 may cover any other suitable percentage of the opening 302, such as 85%, 90%, etc., without departing from the scope of the present disclosure. In addition, the adsorption unit 3 may be U-shaped or semicircular in a cross-section perpendicular to the longitudinal axis 301 of the adsorption unit. As will be appreciated by those skilled in the art, the adsorption unit 3 may adopt any other suitable hollow enclosed cross-section without departing from the scope of the present disclosure.

[0088] In the cabin air control system 100 of the present invention, the adsorption unit 3 has a hollow enclosed cross section in a plane perpendicular to the longitudinal axis 301 of the adsorption unit, the heater 4 is adjacent to the adsorption unit 3 and at least partially covers the opening 301, and the heated air will immediately flow to the enclosed adsorption unit in a divergent manner. This can greatly shorten the heat transfer path and improve the heat transfer efficiency, thereby saving energy for operating the cabin air control system 100.

[0089] Various aspects of the present disclosure have been described in detail with reference to the illustrated embodiments; however, those skilled in the art will recognize that many modifications may be made thereto without departing from the scope of the present disclosure. The present disclosure is not limited to the precise structures and compositions disclosed herein; any and all modifications, variations and modifications apparent from the foregoing description are within the scope of the present disclosure as defined by the appended claims. Furthermore, the present concept expressly includes any and all combinations and sub-combinations of the foregoing elements and features.

Claims

1. A cabin air control system (100), comprising: The upper housing (1) comprises: A first end (101); an opposite second end (102); an air inlet passage (103) having an inlet opening (9) at the first end (101) of the upper housing (1); and a heater chamber (104) in communication with the air inlet passage (103); The lower shell (2) comprises: a first end (131); an opposite second end (132); and An outlet passage (115) has an outlet opening (12) and an exhaust pipe (13) at a first end (131) of the lower shell (2), and the outlet passage (115) selectively communicates with the outlet opening (12) and the exhaust pipe (13). wherein the upper shell (1) and the lower shell (2) together define an adsorption unit chamber (16) that is in communication with the outlet channel (115); A single adsorption unit (3) disposed in the adsorption unit chamber (16), wherein the adsorption unit (3) is configured to adsorb moisture and / or carbon dioxide and / or harmful gases; a heater (4) disposed in the heater chamber (104), wherein the heater (4) is configured to heat the air before the air is delivered to the adsorption unit (3), and the heated air is used to regenerate the adsorption unit (3), The adsorption unit (3) extends along the longitudinal axis (301) of the adsorption unit, has a hollow enclosed cross-section in a plane perpendicular to the longitudinal axis (301) of the adsorption unit, and has an opening (302) at its top, and The heater (4) abuts against the adsorption unit (3) and at least partially covers the opening (302).

2. The cabin air control system (100) according to claim 1, wherein: The heater (4) covers at least 80% of the opening (302).

3. The cabin air control system (100) according to claim 1, further comprising a flap control assembly (5) configured to switch between an adsorption mode and a regeneration mode, the flap control assembly (5) comprising an outlet flap (8), the outlet flap (8) being configured to rotate between a first outlet position corresponding to the adsorption mode and a second outlet position corresponding to the regeneration mode, in, In the first outlet position, the outlet opening (12) is configured to be open and the exhaust duct (13) is configured to be closed by the outlet flap (8), so that the adsorbed and / or purified air flows into the cabin via the outlet opening (12), and In the second outlet position, the outlet opening (12) is configured to be closed by the outlet flap (8) and the exhaust duct (13) is configured to be open, so that the regenerated exhaust gas comprising gas and water flows to the environment through the exhaust duct (13).

4. The cabin air control system (100) according to claim 3, wherein: The flap control assembly (5) also includes an outlet flap coupling (7) connected to the driving mechanism.

5. The cabin air control system (100) according to claim 4, wherein: The outlet flap (8) comprises a blocking pad (106) at an end remote from the drive mechanism. In a first outlet position, the blocking pad (106) is configured to block the exhaust duct (13), and In the second outlet position, the blocking pad (106) is configured to not block the exhaust duct (13).

6. The cabin air control system (100) according to any one of claims 1 to 5, wherein: The adsorption unit (3) comprises water vapor adsorption material.

7. The cabin air control system (100) according to any one of claims 1 to 5, wherein: The adsorption unit (3) comprises a carbon dioxide adsorption material.

8. The cabin air control system (100) according to any one of claims 1 to 5, wherein: The adsorption unit (3) comprises harmful gas adsorption material.

9. The cabin air control system (100) according to any one of claims 1 to 5, wherein: The heater (4) includes a mounting flange (27) configured to engage and seal against a mounting structure (10) of the upper housing (1) when the heater (4) is installed in place in the upper housing (1).

10. The cabin air control system (100) according to any one of claims 1 to 5, wherein: The adsorption unit (3) is U-shaped or semicircular in a cross section perpendicular to the longitudinal axis (301) of the adsorption unit.

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