Independent cabin air purification system

Abstract

The utility model relates to an independent cabin air purification system. The system comprises a lower shell, a heater, an adsorption unit, an upper shell, an air blower, an upper cover and an air door mechanism, the lower shell, the upper shell and the upper cover jointly form a shell structure of the independent cabin air purification system; the adsorption unit is mounted between the lower shell and the upper shell; the heater is arranged on one side, close to the lower shell, of the adsorption unit; and the air blower is fixed on the upper cover and is arranged in a cavity formed between the upper shell and the upper cover. The air door mechanism controls the system to be communicated with the system air outlet or the system water outlet, and an adsorption mode and a regeneration mode can be switched. According to the utility model, the blower volute is integrated to the system shell, so that the assembly process is optimized; the flow resistance of the negative pressure area of the adsorption unit is lower; the independent design facilitates cabin replacement and free layout; the air-conditioning load is reduced; a grid air inlet is attractive and efficient; and the method is of great significance in improving the driving safety and the vehicle energy efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior systems, specifically to an independent cabin air purification system that can effectively regulate the humidity inside the vehicle and ensure the comfort and safety of the in-vehicle environment. Background Technology

[0002] With the development of the automotive industry, the demand for comfort and safety in-car environments is increasing. Excessive humidity inside the car can cause windows to fog up, affecting the driver's visibility and fostering bacterial growth, threatening the health of passengers. Conversely, increased carbon dioxide levels exhaled by passengers can lead to fatigue and reduce driving concentration. Therefore, how to effectively control cabin humidity and carbon dioxide levels has become an urgent problem to be solved.

[0003] In the prior art, in-vehicle dehumidification systems mostly adopt an integrated design. For example, patent CN221464378U proposes an air conditioning unit that achieves dehumidification by switching between hot and cold liquid flow through heat exchange components, while patent CN222310315U discloses a main air duct air conditioning system with integrated dehumidification mode. However, such solutions generally have the following drawbacks: (1) The system requires an external blower as the airflow power source, resulting in a large overall size and encroaching on the vehicle's interior space; (2) When the blower blows air onto the dehumidification filter, the airflow distribution is uneven, reducing dehumidification efficiency and filter lifespan; (3) It is deeply integrated with the air conditioning system, which not only increases the difficulty of air conditioning layout but also affects user comfort due to limited airflow.

[0004] Current mainstream solutions rely on air conditioning to continuously operate in defogging mode and introduce fresh air, but this consumes a lot of energy and significantly shortens the driving range of new energy vehicles; while integrated air conditioning purification systems reduce energy consumption, they are difficult to make practical due to space conflicts and airflow interference.

[0005] Therefore, developing a cabin air purification system that is independent of air conditioning, compact in structure, and highly efficient and stable is of great significance for improving driving safety and vehicle energy efficiency. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this application is to provide an independent cabin air purification system.

[0007] Based on the above objectives, this application provides the following technical solution:

[0008] The present invention provides an independent cabin air purification system, which includes:

[0009] Lower housing, heater, adsorption unit, upper housing, blower, top cover, damper mechanism;

[0010] The lower shell, upper shell, and upper cover together constitute the shell structure of the independent cabin air purification system;

[0011] The adsorption unit is detachably installed and fixed between the lower shell and the upper shell. After installation, it can achieve the sealing between the independent cabin air purification system and the outside world, as well as the separation of the wet side and dry side of the independent cabin air purification system. The wet side is the side that is not adsorbed by the adsorption unit, and the dry side is the opposite.

[0012] The heater is located on the side of the adsorption unit near the lower housing;

[0013] The blower is detachably mounted on the upper cover and is located in the cavity formed between the upper housing and the upper cover.

[0014] Furthermore, this layout allows for a more rational airflow path within the system, reducing airflow resistance and energy loss, and improving the overall system efficiency. Additionally, this independent cabin air purification system can be installed anywhere within the vehicle cabin, without needing to be integrated with the air conditioning system.

[0015] Furthermore, the lower housing is designed with a system air inlet and a heater mounting structure; the heater is fixed to the heater mounting structure by means of screw thread engagement; the system air inlet is connected to the cockpit.

[0016] Furthermore, the system's air inlet is equipped with an air filter grille, which can effectively block dust, debris, and other contaminants from entering the system, protecting the heater and adsorption unit from damage and extending their service life.

[0017] Furthermore, the upper shell is designed with a system drain outlet and a cover mounting structure; the cover is mounted on the upper shell through the cover mounting structure; the upper shell and the cover together form a system air outlet; the system drain outlet is connected to the outside of the cabin; the system air outlet is connected to the cabin.

[0018] Furthermore, the upper cover is designed with a damper mechanism mounting structure; the damper mechanism is mounted on the upper cover through the damper mechanism mounting structure.

[0019] Furthermore, the damper mechanism consists of a drive motor, a coupling, and an air outlet flap; the damper mechanism controls the opening and closing of the system air outlet and the system drain outlet through the air outlet flap; the drive motor is connected to the vehicle control system, the control system is electrically connected to the control circuit of the drive motor, and the output shaft of the drive motor is connected to the rotating shaft of the air outlet flap through the coupling to realize transmission; the function of the air outlet flap is to block the system air outlet or the system drain outlet.

[0020] Furthermore, the heater is preferably a PTC heater, which uses a positive temperature coefficient thermistor material and has advantages such as automatic temperature control, rapid heating, and safety and reliability. Its heating power can be adjusted according to the ambient temperature and system requirements to ensure that it can provide suitable heating effects under different operating conditions.

[0021] Furthermore, the blower is preferably a centrifugal blower. Centrifugal blowers have the characteristics of high air pressure, stable air volume, and low noise, ensuring stability and reliability during high-speed rotation.

[0022] Furthermore, the independent cabin air purification system has two modes: adsorption mode ( Figure 7 ) and regeneration mode ( Figure 8 The working principle of the independent cabin air purification system is as follows:

[0023] This invention provides a cabin air purification system. When the water vapor and carbon dioxide levels inside the vehicle are too high, the blower system will switch from standby mode (M0) to adsorption mode (M1). At this time, the blower will draw air from the cabin through the air inlet. As the air is drawn in, water molecules and carbon dioxide molecules are absorbed as it passes through the adsorption unit. At the same time, the damper mechanism will open the air outlet and close the drain outlet. The purified air will return to the cabin through the air outlet. The system completes one purification cycle. Through multiple purification cycles, the system achieves the purpose of purifying the entire cabin and ensures that the driver and passengers will not experience fatigue or drowsiness due to excessively high concentrations of carbon dioxide. This reduces the number of times the vehicle's air conditioning defrost system needs to be turned on, thereby reducing the energy consumption of the air conditioning system and greatly improving the vehicle's driving range.

[0024] After prolonged system operation, the adsorption unit will reach saturation. At this point, desorption is required, and the system will switch from adsorption mode (M1) to regeneration mode (M2). The heater will be activated, and simultaneously, the damper mechanism will be switched to close the air outlet and open the drain outlet. The blower will draw air from the cabin through the air inlet. This air, after passing through the heater, will become high-temperature air. This hot air will then blow through the adsorption unit, removing water and carbon dioxide molecules. The high-temperature, high-humidity, and high-carbon dioxide-concentration air will be discharged outside the cabin through the drain outlet. This completes one desorption cycle. After several desorption cycles, the adsorption unit can be reused.

[0025] In summary, this utility model provides an integrated vehicle dehumidification system with an integrated blower. The blower changes from blowing air onto the filter to drawing air from the filter, resulting in a smaller system footprint, better dehumidification uniformity, and higher blower efficiency.

[0026] Compared with the prior art, the improvements and beneficial effects of this application are at least as follows:

[0027] (1) Integrated blower: By redesigning the blower volute, the volute is integrated into the system housing, thus optimizing the assembly process;

[0028] (2) Lower flow resistance: Compared with existing air purification devices integrated with air conditioners, the adsorption unit provided by this utility model has lower flow resistance in the negative pressure area.

[0029] (3) Easy to replace: Compared to integrated air purification devices inside the car air conditioning system, independent air purification devices can be placed in the cabin and are easier to replace.

[0030] (4) More flexible placement: Independent air purification devices can be placed in more locations throughout the vehicle cabin and do not need to be combined with the air conditioning;

[0031] (5) Reduce air conditioning load: Independent air purification devices do not require the use of air conditioning air, thus reducing the air conditioning load;

[0032] (6) Grille-type air inlet: Compared with the square air inlet of the purification device in the traditional air conditioner, the independent air purifier uses a grille air inlet, which has a more beautiful shape and better air intake efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the split structure of this application;

[0034] Figure 2 This is a schematic diagram of the overall structure of this application;

[0035] Figure 3 A schematic diagram showing the disassembled structure of the damper mechanism provided in this application;

[0036] Figure 4 A schematic diagram of the overall structure of the damper mechanism provided in this application;

[0037] Figure 5 An enlarged structural view of the blower provided in this application;

[0038] Figure 6 This is an enlarged view of the structure of the adsorption unit provided in this application;

[0039] Figure 7 A schematic diagram of the working adsorption mode (M1) provided in this application;

[0040] Figure 8 A schematic diagram illustrating the operation of the regeneration mode (M2) provided in this application;

[0041] Figure label:

[0042] 1. Lower housing, 2. Heater, 3. Adsorption unit, 4. Upper housing, 5. Blower, 6. Top cover, 7. Damper mechanism;

[0043] 8. Drive motor; 9. Coupling; 10. Air outlet flap;

[0044] 11 System air inlet, 12 Heater mounting structure, 13 System air outlet, 14 System drain outlet, 15 Top cover mounting structure, 16 Damper mechanism mounting structure. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to specific embodiments. It should be noted that the following embodiments will help those skilled in the art to further understand this utility model, but do not limit this utility model in any way. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model. These all fall within the protection scope of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] Example 1: A stand-alone cabin air purification system

[0048] This embodiment combines Figures 1-6 A stand-alone cabin air purification system is provided, with the following structure:

[0049] Shell structure: It consists of a lower shell 1, an upper shell 4 and an upper cover 6, which are sealed together to form a closed cavity, which is divided into a humid side (non-adsorbed side) and a dry side (adsorbed side).

[0050] Adsorption unit 3: Fixedly installed between the lower housing 1 and the upper housing 4, used to adsorb water molecules and carbon dioxide molecules in the air; Heater 2: A PTC heater, fixed on the heater mounting structure 12 of the lower housing 1, located below the humid side of the adsorption unit 3; Blower 5: A centrifugal blower, detachably fixed inside the upper cover 6, located in the cavity formed by the upper housing 4 and the upper cover 6, used to drive airflow; Damper mechanism 7: Includes a drive motor 8, a coupling 9 and an air outlet flap 10, installed on the damper mechanism mounting structure 16 of the upper cover 6, used to switch the opening and closing states of the system air outlet 13 and the drain outlet 14.

[0051] The airflow channel design of the entire independent cabin air purification system is as follows: the lower shell 1 has a system air inlet 11 with an air filter grille at the inlet to block dust; the upper shell 4 has a system drain outlet 14, which connects to the outside of the cabin; the upper shell 4 and the upper cover 6 together form the system air outlet 13, which connects to the inside of the cabin. All components are sealed to ensure complete separation between the humid and dry sides; the overall structure is independent of the automotive air conditioning system and can be flexibly arranged in any position within the cabin.

[0052] Example 2: Adsorption Mode (M1) of a Stand-Alone Cabin Air Purification System

[0053] This embodiment combines Figure 7 An adsorption mode (M1) for a stand-alone cabin air purification system is provided, as follows:

[0054] When the system detects excessive water vapor or carbon dioxide concentration in the cabin, it switches from standby mode (M0) to adsorption mode (M1). Centrifugal blower 5 starts, drawing cabin air in through system inlet 11. The air passes sequentially through a filter grille and heater 2 (not activated) before entering adsorption unit 3. As the air flows through adsorption unit 3, water molecules and carbon dioxide are adsorbed, forming dry, purified air. Damper mechanism 7 controls outlet flap 10 to open system outlet 13 while simultaneously closing drain outlet 14. The purified air returns to the cabin through system outlet 13, completing a single purification cycle. Through multiple cycles, the system continuously reduces cabin humidity and carbon dioxide concentration, decreasing the need for air conditioning defogging and lowering energy consumption.

[0055] Example 3: Regeneration Mode (M2) of a Stand-Alone Cabin Air Purification System

[0056] This embodiment combines Figure 8 A regeneration mode (M2) for an independent cabin air purification system is provided, as detailed below:

[0057] Mode switching conditions: When adsorption unit 3 reaches saturation, the system switches from adsorption mode (M1) to regeneration mode (M2). Heater 2 is energized, heating the intake air to a high temperature. Drive motor 8, via coupling 9, controls the outlet flap 10 to close the system outlet 13, while simultaneously opening the drain outlet 14. Blower 5 drives the high-temperature air through adsorption unit 3, desorbing water molecules and carbon dioxide; the high-temperature, high-humidity, and high-carbon dioxide air is discharged to the outside of the cabin through drain outlet 14. After multiple desorption cycles, adsorption unit 3 recovers its adsorption capacity, and the system switches back to adsorption mode (M1) or standby mode (M0).

[0058] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A stand-alone cabin air purification system, characterized in that, The system includes: Lower housing (1), heater (2), adsorption unit (3), upper housing (4), blower (5), top cover (6), damper mechanism (7); The lower shell (1), upper shell (4) and upper cover (6) together constitute the shell structure of the independent cabin air purification system; The adsorption unit (3) is detachably installed and fixed between the lower housing (1) and the upper housing (4); The heater (2) is located on the side of the adsorption unit (3) near the lower housing (1); The blower (5) is detachably fixed to the upper cover (6) and is located in the cavity formed between the upper housing (4) and the upper cover (6).

2. The independent cabin air purification system according to claim 1, characterized in that, The aforementioned stand-alone cabin air purification system is installed in the car cabin.

3. The independent cabin air purification system according to claim 1, characterized in that, The lower housing (1) is designed with a system air inlet (11) and a heater mounting structure (12); the heater (2) is fixed to the heater mounting structure (12) by means of screw thread engagement; the system air inlet (11) is connected to the cabin.

4. The independent cabin air purification system according to claim 3, characterized in that, An air filter grille is provided at the air inlet (11) of the system.

5. The independent cabin air purification system according to claim 1, characterized in that, The upper shell (4) is designed with a system drain outlet (14) and a cover mounting structure (15); the cover (6) is mounted on the upper shell (4) through the cover mounting structure (15); the upper shell (4) and the cover (6) together form a system air outlet (13); the system drain outlet (14) is connected to the outside of the cabin; the system air outlet (13) is connected to the cabin.

6. The independent cabin air purification system according to claim 1, characterized in that, The upper cover (6) is designed with a damper mechanism mounting structure (16); the damper mechanism (7) is mounted on the upper cover (6) through the damper mechanism mounting structure (16).

7. The independent cabin air purification system according to claim 1, characterized in that, The damper mechanism (7) consists of a drive motor (8), a coupling (9), and an air outlet flap (10). The damper mechanism (7) controls the opening and closing of the system air outlet (13) and the system drain outlet (14) through the air outlet flap (10). The function of the air outlet flap (10) is to block the system air outlet (13) or the system drain outlet (14).

8. The independent cabin air purification system according to claim 7, characterized in that, The output shaft of the drive motor (8) is connected to the rotating shaft of the air outlet flap (10) via a coupling (9).

9. A stand-alone cabin air purification system according to claim 1, characterized in that, Heater (2) is a PTC heater.

10. A stand-alone cabin air purification system according to claim 1, characterized in that, The blower (5) is a centrifugal blower.

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