Full-automatic low-load cabin air purification system

Abstract

The utility model relates to a full-automatic low-load cabin air purification system which comprises an air inlet shell, a heater, an adsorption unit, an air outlet shell, an air blower, an air blower cover plate and an air door mechanism. The system shell is composed of an air inlet shell, an air outlet shell and an air blower cover plate, and the adsorption unit is installed between the air inlet shell and the air outlet shell to achieve sealed isolation of the wet side and the dry side. The system air inlet is communicated with the cabin, and the air outlet shell integrated system air outlet is communicated with the cabin. The air door mechanism controls a turning plate to switch the opening and closing states of an air outlet and a water outlet through a driving motor. The controller automatically executes an adsorption mode M1 or a regeneration mode M2 according to data of an inlet / outlet temperature and humidity sensor. In the M1 mode, air is dehumidified and CO2 is removed through an adsorption unit and then returns to a cabin. And in the M2 mode, the heater generates hot air to desorb the adsorption unit. Compared with a traditional scheme, after the air conditioner is adopted, air is exhausted to reduce loads, the space utilization rate is increased when the air conditioner is installed below an instrument desk, air conditioner energy consumption can be reduced, and vehicle endurance is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior systems, and specifically to a fully automatic, low-load cabin air purification system. Background Technology

[0002] Carbon dioxide and water vapor contained in the breath of drivers and passengers can accumulate in the passenger compartment. Too high a concentration of carbon dioxide can significantly reduce the driver's ability to concentrate, and too high a humidity can cause the vehicle's windows (such as the windshield or side windows) to fog up. These factors can all pose unpredictable dangers to the vehicle's occupants.

[0003] There are three main solutions based on existing technologies:

[0004] 1. Continuously running the air conditioning system in defogging mode and introducing some fresh air through external circulation to reduce cabin humidity and carbon dioxide concentration significantly increases the power consumption of the air conditioning system, resulting in a substantial reduction in the driving range of new energy vehicles. 2. Adding a purification system to the air conditioning system reduces energy consumption, but integrating the purification system with the air conditioning unit takes up space that would otherwise be available in the vehicle, increasing the difficulty of air conditioning placement. This type of purification system also affects the airflow of the air conditioning, thus impacting user comfort. 3. Adding a separate purification system with a fan solves the problem of occupying air conditioning airflow, but because the power of a separate fan is less than that of the air conditioning blower, the overall purification efficiency is lower than that of an integrated purifier.

[0005] Furthermore, all three solutions mentioned above require users to manually detect whether the car windows are fogged up before deciding whether to activate the purification device, which is not intelligent enough. Considering all these points, there is an urgent need for an air purification solution that integrates with the air conditioning system but has minimal impact on it and offers greater intelligence. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this application is to provide a fully automatic, low-load cabin air purification system.

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

[0008] One of the technical solutions of this application provides a fully automatic, low-load cabin air purification system, comprising the following structure:

[0009] Air inlet housing, heater, adsorption unit, air outlet housing, blower, blower cover, damper mechanism;

[0010] The air inlet housing, air outlet housing, and blower cover together constitute the housing structure of the fully automatic low-load cabin air purification system.

[0011] The adsorption unit is detachably installed and fixed between the air inlet housing and the air outlet housing. After installation, it can achieve the sealing between the fully automatic low-load cabin air purification system and the outside world, as well as the separation of the humid side and the dry side of the fully automatic low-load cabin air purification system. The humid side is the side that is not adsorbed by the adsorption unit, and the dry side is the opposite. The detachable method is any one of the following: threaded screw connection, snap-fit ​​connection, and plug-in connection. All detachable connection methods below are the same as here.

[0012] The air inlet housing is designed with a system air inlet and a heater mounting structure; the heater is inserted into the heater mounting structure from the outside and then fixedly connected to the heater mounting structure by a threaded screw structure; the heater is set at the system air inlet so that the passing airflow can be uniformly heated;

[0013] The blower is detachably fixed to the blower cover plate and is located in the cavity formed between the air outlet housing and the blower cover plate; the operation of the blower allows airflow to enter from the system air inlet.

[0014] In the above structure, the heater is used to heat the humidified air, the adsorption unit is used to adsorb water vapor and carbon dioxide from the air, the blower is used to provide power for airflow, and the damper mechanism is used to control the direction of airflow.

[0015] Furthermore, the system's air intake is connected to the cockpit.

[0016] Furthermore, an air filter grille is provided at the air inlet of the system; the air filter grille is a replaceable grille, which can be replaced in time after a period of use, effectively blocking dust, debris and other impurities from entering the system, protecting the heater and adsorption unit from damage, and extending their service life.

[0017] Furthermore, the outlet housing and the outlet portion of the blower cover together form the system air outlet; the outlet housing is designed with a system drain outlet; the system air outlet is connected to the air system inside the cabin; the system drain outlet is connected to the outside of the cabin.

[0018] Furthermore, the blower cover and the air outlet housing are designed with mutually cooperating air outlet housing mounting structures; the air outlet housing and the blower cover are connected through the air outlet housing mounting structures to achieve assembly.

[0019] Furthermore, the air outlet housing is designed with a damper mechanism mounting structure; the damper mechanism is mounted on the air outlet housing near the system air outlet via the damper mechanism mounting structure.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] Furthermore, the system's air inlet and outlet are equipped with an inlet temperature and humidity sensor and an outlet temperature and humidity sensor, respectively; the inlet temperature and humidity sensor and the outlet temperature and humidity sensor are used to monitor the air temperature and humidity at the inlet and outlet.

[0024] Furthermore, the in-vehicle control system includes a controller, which is connected to the inlet temperature and humidity sensor and the outlet temperature and humidity sensor via data cables, and receives temperature and humidity signals transmitted by the inlet temperature and humidity sensor and the outlet temperature and humidity sensor; the controller is also connected to the blower via a data cable to control the operation of the blower.

[0025] Furthermore, the outer sides of the air inlet housing, the air outlet housing, and the blower cover are all provided with several staggered reinforcing ribs.

[0026] Furthermore, the humidity control system of the fully automatic low-load cabin air purification system has two modes:

[0027] Adsorption Mode (M1): The imported temperature and humidity sensor of this utility model monitors the air flowing through the rear exhaust duct of the air conditioner. When the temperature and humidity reach the preset value, the controller starts the blower system through the data cable and enters the adsorption mode (M1) from the standby mode (M0). At this time, the blower will draw air from the cabin through the air inlet. When the air is drawn in, water molecules and carbon dioxide molecules in the air 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 above system completes a 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 be fatigued or drowsy due to excessive carbon dioxide concentration. It also reduces the number of times the vehicle's air conditioner defrosts, thereby reducing the energy consumption of the air conditioning system and greatly improving the vehicle's range.

[0028] Regeneration Mode (M2): When the values ​​of the outlet temperature and humidity sensor and the inlet temperature sensor are close to equal, it indicates that the adsorption unit is nearing saturation and desorption of adsorption unit 3 is required. The system will switch from adsorption mode (M1) to regeneration mode (M2). At this time, the heater is activated, and the damper mechanism simultaneously closes the air outlet and opens the drain outlet. The blower will draw air from the cabin through the air inlet. The air will become high-temperature air after passing through the heater. When this hot air blows through the adsorption unit, it will carry away water molecules 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. The system completes one desorption cycle. After several desorption cycles, the adsorption unit can be reused.

[0029] Compared with the prior art, the present invention has at least the following improvements and beneficial effects:

[0030] (1) More intelligent: Compared with traditional cabin air purifiers that require manual switching between adsorption and desorption, this utility model automatically switches based on the temperature and humidity of the sensor.

[0031] (2) Reduce air conditioning load: This utility model uses the air from the air vent at the rear of the air conditioner, which has a lower usage rate. Compared with the traditional cabin air purifier that draws air directly from the air conditioner blower outlet, the load on the air conditioner is lower, which can improve passenger comfort.

[0032] (3) Improve vehicle space utilization: This utility model is installed under the car dashboard, which is generally quite empty. Compared with traditional air purifiers that occupy air conditioning space, we have a higher vehicle space utilization rate. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the disassembled structure of a fully automatic, low-load cabin air purification system.

[0034] Figure 2 This is a schematic diagram of the disassembled structure of the damper mechanism;

[0035] Figure 3 A schematic diagram of adsorption mode M1 of a fully automatic, low-load cabin air purification system.

[0036] Figure 4 A schematic diagram of the regeneration mode M2 ​​of a fully automatic, low-load cabin air purification system;

[0037] Figure label:

[0038] 1. Air inlet housing, 2. Heater, 3. Adsorption unit, 4. Air outlet housing, 5. Blower, 6. Blower cover, 7. Damper mechanism;

[0039] 8. Drive motor; 9. Coupling; 10. Air outlet flap;

[0040] 11 System air inlet, 12 Heater mounting structure, 13 System air outlet, 14 System drain outlet, 15 Damper mechanism mounting structure, 16 Air outlet housing mounting structure;

[0041] 17 Controller, 18 Inlet temperature and humidity sensor, 19 Outlet temperature and humidity sensor. Detailed Implementation

[0042] 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.

[0043] 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 for 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," and "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 according to the specific circumstances.

[0044] Example 1

[0045] according to Figures 1-4 This embodiment provides a fully automatic, low-load cabin air purification system, the structure of which includes:

[0046] 1. Inlet housing; 2. PTC heater; 3. Adsorption unit; 4. Outlet housing; 5. Centrifugal blower; 6. Blower cover; 7. Damper mechanism. Among them:

[0047] The air inlet housing 1 is provided with a system air inlet 11 and a heater mounting structure 12. The system air inlet 11 communicates with the cabin and is equipped with a replaceable air filter grille. The PTC heater 2 is fixed inside the heater mounting structure 12 by threaded screws and is installed in the air inlet direction of the system air inlet 11. The adsorption unit 3 is installed between the air inlet housing 1 and the air outlet housing 4, forming a sealed structure that separates the system into a wet side and a dry side. The air outlet housing 4 is provided with a system air outlet 13 and a system drain outlet 14, wherein the system air outlet 13 communicates with the cabin air system and the system drain outlet 14 extends to the outside of the cabin. The centrifugal blower 5 is fixed to the inside of the blower cover plate 6 by a snap-fit ​​connection and is installed as a whole in the sealed cavity formed by the air outlet housing 4 and the blower cover plate 6. The air outlet housing 4 is provided with an air outlet housing mounting structure 16 that matches the blower cover plate 6, and the two are mechanically locked together by this structure. The outer surfaces of the air inlet housing 1, the air outlet housing 4, and the blower cover 6 are all provided with staggered reinforcing ribs.

[0048] The damper mechanism 7 includes a drive motor 8, a coupling 9, and an air outlet flap 10, which is fixed to the air outlet housing 4 near the system air outlet 13 via the damper mechanism mounting structure 15. The output shaft of the drive motor 8 is connected to the rotating shaft of the air outlet flap 10 via the coupling 9. The air outlet flap 10 can be used to synchronously switch the opening and closing states of the system air outlet 13 and the system drain outlet 14.

[0049] In addition, the system is equipped with an inlet temperature and humidity sensor 18 and an outlet temperature and humidity sensor 19, which are installed at the system air inlet 11 and the system air outlet 13, respectively. The controller 17 is connected to the sensors, the centrifugal blower 5, and the drive motor 8 via data cables.

[0050] The system operates in two modes: in adsorption mode (M1), the exhaust flap 10 opens the system exhaust port 13 and closes the drain port 14, allowing purified air to return to the cabin; in regeneration mode (M2), the flap switches to close the exhaust port 13 and open the drain port 14, allowing high-temperature exhaust gas to be discharged outside the vehicle. The mode switching is automatically controlled by the controller 17 based on sensor data.

[0051] 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 fully automatic, low-load cabin air purification system, characterized in that, Includes the following structure: Air inlet housing (1), heater (2), adsorption unit (3), air outlet housing (4), blower (5), blower cover (6), damper mechanism (7); The air inlet housing (1), the air outlet housing (4), and the blower cover (6) together constitute the housing structure of the fully automatic low-load cabin air purification system; The adsorption unit (3) is detachably installed and fixed between the air inlet housing (1) and the air outlet housing (4). After installation, it can achieve the sealing between the fully automatic low-load cabin air purification system and the outside world, as well as the separation of the wet side and dry side of the fully automatic low-load cabin air purification system. The wet side is the side that is not adsorbed by the adsorption unit (3), and the dry side is the opposite. The detachable method is any one of the following: threaded screw connection, snap-fit ​​connection, and plug-in connection. The air inlet housing (1) is designed with a system air inlet (11) and a heater mounting structure (12); the heater (2) is inserted into the heater mounting structure (12) from the outside and then fixedly connected to the heater mounting structure (12) by a threaded screw structure; the heater (2) is located at the system air inlet (11); The blower (5) is detachably fixed on the blower cover plate (6) and is located in the cavity formed between the air outlet housing (4) and the blower cover plate (6); In the above structure, the heater (2) is used to heat the humid air, the adsorption unit (3) is used to adsorb water vapor and carbon dioxide components in the air, the blower (5) is used to provide power for air flow, and the damper mechanism (7) is used to control the direction of air flow.

2. The fully automatic low-load cabin air purification system according to claim 1, characterized in that, The system air inlet (11) is connected to the cockpit.

3. The fully automatic low-load cabin air purification system according to claim 2, characterized in that, An air filter grille is provided at the air inlet (11) of the system.

4. The fully automatic low-load cabin air purification system according to claim 1, characterized in that, The outlet housing (4) and the outlet portion of the blower cover (6) together form the system air outlet (13); the outlet housing (4) is designed with a system drain outlet (14); the system air outlet (13) is connected to the air system inside the cabin; the system drain outlet (14) is connected to the outside of the cabin.

5. The fully automatic low-load cabin air purification system according to claim 1, characterized in that, The blower cover (6) and the air outlet housing (4) are designed with mutually cooperating air outlet housing mounting structures (16); the air outlet housing (4) and the blower cover (6) are connected through the air outlet housing mounting structure (16).

6. The fully automatic low-load cabin air purification system according to claim 1, characterized in that, The air outlet housing (4) is designed with a damper mechanism mounting structure (15); the damper mechanism (7) is installed on the air outlet housing (4) near the system air outlet (13) through the damper mechanism mounting structure (15).

7. The fully automatic low-load 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 fully automatic low-load cabin air purification system according to claim 1, characterized in that, The heater (2) is a PTC heater; the blower (5) is a centrifugal blower.

9. The fully automatic low-load cabin air purification system according to claim 1, characterized in that, The system inlet (11) and system outlet (13) are respectively equipped with an inlet temperature and humidity sensor (18) and an outlet temperature and humidity sensor (19); the inlet temperature and humidity sensor (18) and the outlet temperature and humidity sensor (19) are used to monitor the air temperature and humidity at the inlet and outlet; The in-vehicle control system is equipped with a controller (17), which is connected to the inlet temperature and humidity sensor (18) and the outlet temperature and humidity sensor (19) via data lines, and receives the temperature and humidity signals transmitted by the inlet temperature and humidity sensor (18) and the outlet temperature and humidity sensor (19); the controller (17) is connected to the blower (5) via data lines and controls the operation of the blower (5).

10. A fully automatic, low-load cabin air purification system according to claim 1, characterized in that, The outer sides of the air inlet housing (1), the air outlet housing (4), and the blower cover (6) are all provided with several staggered reinforcing ribs.

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