Vehicle air conditioning system with fresh air function

Abstract

The vehicle air conditioning system with the fresh air function comprises a power air port system, the power air port system comprises an air inlet pipe, a refrigerating / heating system and an air supply pipe, the air inlet pipe is provided with a fresh air inlet and an internal circulation air inlet, a plurality of air outlet pipes are arranged at the tail end of the air supply pipe, and a tail end air supply system is arranged at a pipe opening of each air outlet pipe. The tail end air supply system comprises a small air supply fan and a low-speed fan, and the tail end air supply system mixes low / high-temperature air flow of the refrigerating / heating system and indoor environment-temperature air flow and then blows the mixed air flow to the positions of users in the compartment; the fresh air exchange device comprises a first pipeline and a second pipeline, an air suction fan is installed in the first pipeline and can actively suck fresh air into the compartment, and an air exhaust fan is installed in the second pipeline and can exhaust turbid air in the compartment out of the vehicle. The air suction fan and the air exhaust fan can be controlled in a centralized mode through an air conditioner central control system, energy consumption of a vehicle air conditioner system is effectively managed, and comfort of passengers is improved.

Description

Technical Field

[0001] The utility model relates to a vehicle air-conditioning system with a fresh air function. Background Art

[0002] The existing automobile air conditioning centralized air supply system includes an air inlet duct, a cooling / heating system and an air supply duct, such as Figure 1 As shown, the air inlet duct is provided with two air inlets, one air inlet 1a is used to deliver fresh air, and the other air inlet 2a is used to deliver internal circulating air. The outlet of the air inlet duct is connected to the cooling / heating system, and the outlet of the cooling / heating system is connected to the air supply duct. The cooling / heating system includes a high-power air supply fan 3a and a heat exchanger 4a. The cooling / heating system cools or heats the air in the air inlet duct and then delivers it to the air supply duct. A plurality of air outlet ducts 5a are provided at the end of the air supply duct. The outlets of the air outlet ducts 5a are located in different areas of the automobile passenger compartment. A valve switch is provided at the end of the air outlet duct to control the air output. The traditional automobile air conditioning air supply system has the following disadvantages: 1. The high-power air supply fan is large in size and is placed in the automobile engine compartment, which seriously restricts the spatial layout of the engine compartment; 2. After the high-power air supply fan sends out the cold air / hot air, it is transmitted through the air supply duct, especially the long-distance duct transmission in the rear area, which causes serious air loss and reduces the energy efficiency of the air supply system; 3. The air supply fan of the centralized air supply system directly sends the cold air / hot air to the end of the air outlet duct and blows it onto the passengers, causing the passengers' body temperature to change too quickly and reducing their comfort; 4. The centralized air supply system cannot perform differentiated air supply management on the ends of each air outlet. Passengers in different positions cannot set different fan speeds according to their respective needs. They can only set valves at each air outlet to intercept the air volume by switching the size of the valve, resulting in air volume waste; 5. The air supply fan of the centralized air supply system directly sends the cold air to the end of the air outlet and blows it onto the passengers, causing the passengers' body temperature to change too quickly and reducing their comfort. 6. Traditional cars replace fresh air by using the inertia of the vehicle as it moves forward. However, unmanaged hot and cold air from the outside will affect the air conditioning effect in the car, increasing energy consumption while reducing passenger comfort. Summary of the invention

[0003] The utility model provides a vehicle air-conditioning system with a fresh air function, which is used to solve the technical problem that in the prior art, fresh air is exchanged in a traditional automobile by using the inertia of the vehicle during driving to push the fresh air into the vehicle, but the unmanaged cold and hot air outside will affect the air-conditioning effect in the vehicle, increase energy consumption, and reduce the comfort of passengers.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A vehicle air conditioning system with a fresh air function, comprising a power air outlet system, wherein: the power air outlet system comprises an air inlet pipe, a cooling / heating system and an air supply pipe, the air inlet pipe is provided with a fresh air inlet and an internal circulation air inlet, the outlet of the air inlet pipe is connected to the cooling / heating system, the cooling / heating system comprises a pipeline, a large air supply fan and a heat exchanger arranged in the pipeline, the outlet of the cooling / heating system is connected to the air supply pipe, a plurality of air outlet pipes are arranged at the end of the air supply pipe, a terminal air supply system is arranged at the pipe mouth of the air outlet pipe, the terminal air supply system comprises a small air supply fan and a low-speed fan, the small air supply fan is arranged at the end of the air outlet pipe, the low-speed fan is arranged beside the pipe mouth of the air outlet pipe, and the terminal air supply system mixes the low / high temperature airflow of the cooling / heating system with the ambient temperature airflow in the room and blows the mixture to the position of the passengers in the vehicle compartment;

[0006] The feature is that it also includes a fresh air exchange device, which includes a first pipe and a second pipe. An air suction fan is installed in the first pipe. Under the action of the air suction fan, the inlet of the first pipe is used to actively suck fresh air into the interior of the vehicle. An exhaust fan is installed in the second pipe. The inlet of the second pipe is connected to the interior of the vehicle. Under the action of the exhaust fan, the turbid air in the vehicle is discharged out of the vehicle through the outlet of the second pipe.

[0007] As described above, two suction fans are installed in the first pipe, and the two suction fans are respectively arranged near the two end portions of the first pipe; two exhaust fans are installed in the second pipe, and the two exhaust fans are respectively arranged near the two end portions of the second pipe.

[0008] An air conditioning device is also installed in the first pipe, and the air conditioning device includes a filter, a surface cooler and a humidifier.

[0009] A fresh air temperature sensor and a fresh air valve are arranged at the fresh air inlet end of the first pipeline.

[0010] The exhaust fan and suction fan described above are both small-sized high-speed ducted fans.

[0011] The terminal air supply system described above is controlled by a central control system.

[0012] The above-mentioned suction fan is controlled by the central control system.

[0013] The above-mentioned exhaust fan is controlled by the central control system, and the fresh air temperature sensor sends the detected temperature signal to the central control system, and the central control system controls the operation of the fresh air valve and the air conditioning device.

[0014] The terminal air supply system described above also includes an air supply control unit, which controls the operation of a small air supply blower and a low-speed fan of the terminal air supply system in which it is located, and a central control system controls the operation of each air supply control unit.

[0015] The terminal air supply system described above also includes an infrared / temperature sensing system, which senses the status of the passenger position and sends the sensing signal to the central control system, and the central control system controls the operation of each air supply control unit according to the sensing signal.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The utility model has a fresh air function. The fresh air exchange device includes a first pipe and a second pipe. An air suction fan is installed in the first pipe. Under the action of the air suction fan, the inlet of the first pipe is used to actively suck fresh air into the interior of the vehicle. An exhaust fan is installed in the second pipe. The inlet of the second pipe is connected to the interior of the vehicle. Under the action of the exhaust fan, the turbid air in the vehicle is discharged out of the vehicle through the outlet of the second pipe. The air suction fan and the exhaust fan can be centrally controlled by the air conditioning central control system to effectively manage the energy consumption of the vehicle air conditioning system and improve the comfort of passengers.

[0018] 2. Other advantages of the present invention are described in detail in the embodiment section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the structural principle diagram of the existing automobile air conditioning centralized air supply system;

[0020] Figure 2 It is a structural schematic diagram of a power tuyere system provided by an embodiment of the utility model;

[0021] Figure 3 The overall structural block diagram provided for the embodiment of the utility model;

[0022] Figure 4 A schematic diagram of a control block provided for an embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the present embodiment provides a vehicle air conditioning system with a fresh air function, including a power air outlet system 100, wherein: the power air outlet system 100 includes an air inlet pipe 1, a cooling / heating system 2 and an air supply pipe 3, the air inlet pipe 1 is provided with a fresh air inlet 11a and an internal circulation air inlet 11b, the fresh air inlet 11a and the internal circulation air inlet 11b respectively deliver fresh air and internal circulation air, the outlet of the air inlet pipe 1 is connected to the cooling / heating system 2, the cooling / heating system 2 includes a pipeline 20, a large air supply fan 21 and a heat exchanger 22 arranged in the pipeline 20, the outlet of the cooling / heating system 2 is connected to the air supply pipe 3, a plurality of air outlet pipes 31 are provided at the end of the air supply pipe 3, and a terminal air supply system 4 is provided at the pipe mouth of each of the air outlet pipes 31, and the terminal air supply system 4 includes a small air supply fan The small air supply fan 41 and the low-speed fan 42, the small air supply fan 41 is arranged at the end of the air outlet duct 31, the low-speed fan 42 is arranged beside the pipe mouth of the air outlet duct 31, and the terminal air supply system 4 mixes the low / high temperature airflow of the cooling / heating system 2 and the indoor ambient temperature airflow and blows them to the user position inside the car; it is characterized by: it also includes a fresh air exchange device 5, the fresh air exchange device 5 includes a first pipe 51 and a second pipe 53, an air suction fan 52 is installed in the first pipe 51, and under the action of the air suction fan 52, the inlet of the first pipe 51 is used to actively inhale fresh air into the car, and an exhaust fan 54 is installed in the second pipe 53, the inlet of the second pipe 53 is connected to the interior of the car, and under the action of the exhaust fan 54, the turbid air in the car is discharged out of the car through the outlet of the second pipe 53.

[0026] An air conditioning device 55 is also installed in the first pipe 51. The air conditioning device 55 includes a filter, a cooler and a humidifier. The filter can filter out dust or impurities in the inhaled fresh air; the cooler and the humidifier can adjust the temperature and humidity of the fresh air.

[0027] A fresh air temperature sensor 57 and a fresh air valve 56 are provided at the fresh air inlet end of the first pipe 51 .

[0028] The exhaust fan 54 and the suction fan 52 are both small-sized high-speed ducted fans.

[0029] Two suction fans 52 are installed in the first pipe 51, and the two suction fans 52 are respectively arranged near the two ends of the first pipe 51. The two suction fans 52 are arranged to achieve better effect, and the two suction fans 52 can form a siphon effect.

[0030] Two exhaust fans 54 are installed in the second pipe 53, and the two exhaust fans 54 are respectively arranged near the two ends of the second pipe 53. The two exhaust fans 54 are arranged to achieve better effect, and the two exhaust fans 54 can form a siphon effect. Two fans are arranged inside the first pipe and the second pipe, and the two fans form a siphon effect in the pipe to generate negative pressure, thereby improving the air volume and energy efficiency of the fan system.

[0031] The terminal air supply system 4 is controlled by the central control system 6 .

[0032] The suction fan 52 is controlled by the central control system 6 .

[0033] The exhaust fan 54 is controlled by the central control system 6, and the fresh air temperature sensor 57 sends the detected temperature signal to the central control system 6, and the central control system 6 controls the operation of the fresh air valve 56 and the air conditioning device 55. The central control system 6 controls the fresh air valve 56 to open or close, thereby controlling the entry of fresh air.

[0034] The small air supply fan 41 is located obliquely behind the low-speed fan 42. The high-speed small air supply fan 41 blows the low / high temperature airflow of the cooling / heating system 2 to the rear of the low-speed fan 42. The low-speed fan 42 mixes the low / high temperature airflow with the ambient temperature airflow and blows it to the user's position. The low-speed fan 42 mixes the low / high temperature airflow with the ambient temperature airflow to make the wind temperature and wind speed more comfortable.

[0035] The terminal air supply system 4 further includes an air supply control unit 43, which controls the operation of the high-speed small air supply fan 41 and the low-speed fan 42 of the terminal air supply system 4, and the central control system 6 controls the operation of each air supply control unit 43. Users at different locations can set the wind speed of the terminal air supply system 4 according to their personal needs, which better meets the differentiated needs of users and improves the user experience.

[0036] The terminal air supply system 4 further includes an infrared / temperature sensing system 44, which senses the state of the user's position and sends a sensing signal to the central control system 6, which controls the operation of each air supply control unit 43 according to the sensing signal. The central control system 6 can control the operation of each terminal air supply system 4 differently.

[0037] The air supply angles of the small air supply fan 41 and the low-speed fan 42 are adjustable, for example, the air supply angle can be adjusted within the range of 10 degrees to 90 degrees.

[0038] The above-mentioned user location status includes user perception, temperature perception and sleep perception.

[0039] The infrared / temperature sensing system 44 can identify whether there is an occupant in the seat, whether the user is sleeping, and whether the user's body temperature is too high or too low, and automatically adjust to the optimal temperature and wind speed conditions for different user positions through the centralized control system, thereby improving user comfort and saving energy.

[0040] The utility model has a fresh air function, and the fresh air exchange device 5 includes a first pipe 51, and a suction fan 52 is installed in the first pipe 51. Under the action of the suction fan 52, the inlet of the first pipe 51 is used to actively inhale fresh air into the interior of the vehicle. The suction fan 52 can be centrally controlled by the central control system 6 of the air conditioner, which effectively manages the energy consumption of the vehicle air conditioning system and improves the comfort of passengers. The fresh air exchange device 5 of the utility model also includes a second pipe 53, and an exhaust fan 54 is installed in the second pipe 53. The inlet of the second pipe 53 is connected to the interior of the vehicle. Under the action of the exhaust fan 54, the turbid air in the vehicle is discharged out of the vehicle through the outlet of the second pipe 53. The exhaust fan 54 can be centrally controlled by the central control system 6 of the air conditioner, which effectively manages the energy consumption of the vehicle air conditioning system and improves the comfort of passengers.

[0041] By improving the power vent system, the car can be more energy-efficient and the passengers (i.e. users) can experience a more comfortable experience. The advantages are:

[0042] 1. In automobile applications, the high-power centralized air supply fan inside the engine compartment is cancelled, and a high-power air supply fan 21 is added to the centralized air supply duct instead, which can better arrange the space of the engine compartment and improve the rationality of the compartment space design.

[0043] 2. In automotive applications, the wind blown out by the high-power air supply fan 21 is compensated by adding a high-speed low-power air supply fan 41 in the pipe at the end of the air outlet, forming a siphon effect in the pipe to generate negative pressure, reducing the air volume attenuation of cold air (or hot air) in the pipe, and improving the air supply energy efficiency of the fan system.

[0044] 3. In automobile applications, each air outlet duct 31 has an independent air supply control unit 43, which controls the low-power air supply fan 41 of each air outlet duct 31 respectively; at the same time, there is also a central control system 6 in the center console for centralized control, which can differentially control the speed of the low-power air supply fan 41 of each air outlet duct 31.

[0045] 4. A low-power air supply fan 41 is provided in each air outlet duct 31. Personnel at different positions can set the rotation speed of different low-power air supply fans 41 according to their personal needs, thereby better meeting the differentiated needs of personnel and improving the personnel's experience.

[0046] 5. An infrared / temperature sensing system 44 is added to each air outlet duct 31 to identify whether there is an individual in the seat, whether the individual is sleeping, and whether the individual's body temperature is too high or too low. The central control system 6 is used to automatically adjust to the optimal temperature and wind speed state for different personnel positions to improve the comfort of the personnel.

[0047] 6. A low-speed fan 42 is added to each air outlet duct 31 to mix the ambient air with the cold (hot) air blown out by the low-power air supply fan 41 and blow it onto the personnel, forming natural wind and improving the comfort of the personnel.

[0048] 7. The new air-conditioning air supply system can achieve constant air volume control, reduce the risk of reduced air volume due to increased static pressure in the pipeline caused by factors such as filter blockage, and improve the experience of air-conditioning cooling effect.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A vehicle air conditioning system with a fresh air function, comprising a power air outlet system (100), wherein: The power air outlet system (100) comprises an air inlet pipe (1), a cooling / heating system (2) and an air supply pipe (3), wherein the air inlet pipe (1) is provided with a fresh air inlet (11a) and an internal circulation air inlet (11b), the outlet of the air inlet pipe (1) is connected to the cooling / heating system (2), the cooling / heating system (2) comprises a pipeline (20), a large air supply fan (21) and a heat exchanger (22) arranged in the pipeline (20), the outlet of the cooling / heating system (2) is connected to the air supply pipe (3), and the air supply pipe (3 ) is provided with a plurality of air outlet pipes (31) at the end thereof, and a terminal air supply system (4) is provided at the pipe opening of the air outlet pipe (31), and the terminal air supply system (4) comprises a small air supply fan (41) and a low-speed fan (42), the small air supply fan (41) is arranged at the end of the air outlet pipe (31), and the low-speed fan (42) is arranged beside the pipe opening of the air outlet pipe (31), and the terminal air supply system (4) mixes the low / high temperature airflow of the cooling / heating system (2) and the ambient temperature airflow in the room and blows the mixture to the position of the passengers in the compartment; Features: The vehicle further comprises a fresh air exchange device (5), the fresh air exchange device (5) comprising a first pipe (51) and a second pipe (53), wherein an air suction fan (52) is installed in the first pipe (51), and under the action of the air suction fan (52), fresh air is actively sucked into the interior of the vehicle compartment through the inlet of the first pipe (51), and an exhaust fan (54) is installed in the second pipe (53), the inlet of the second pipe (53) is connected to the interior of the vehicle compartment, and under the action of the exhaust fan (54), the turbid air in the interior of the vehicle compartment is discharged out of the vehicle through the outlet of the second pipe (53).

2. A vehicle air conditioning system with fresh air function according to claim 1, characterized in that: Two suction fans (52) are installed in the first pipe (51), and the two suction fans (52) are respectively arranged near the two end portions of the first pipe (51); two exhaust fans (54) are installed in the second pipe (53), and the two exhaust fans (54) are respectively arranged near the two end portions of the second pipe (53).

3. A vehicle air conditioning system with fresh air function according to claim 1 or 2, characterized in that: An air conditioning device (55) is also installed in the first pipe (51), and the air conditioning device (55) comprises a filter, a surface cooler and a humidifier.

4. A vehicle air conditioning system with fresh air function according to claim 3, characterized in that: A fresh air temperature sensor (57) and a fresh air valve (56) are provided at the fresh air inlet end of the first pipeline (51).

5. A vehicle air conditioning system with fresh air function according to claim 4, characterized in that: The exhaust fan (54) and the suction fan (52) are both small-sized high-speed ducted fans.

6. The vehicle air conditioning system with fresh air function according to claim 4, characterized in that: The terminal air supply system (4) is controlled by a central control system (6).

7. A vehicle air conditioning system with fresh air function according to claim 6, characterized in that: The suction fan (52) is controlled by the central control system (6).

8. The vehicle air conditioning system with fresh air function according to claim 7, characterized in that: The exhaust fan (54) is controlled by the central control system (6), and the fresh air temperature sensor (57) sends the detected temperature signal to the central control system (6). The central control system (6) controls the operation of the fresh air valve (56) and the air conditioning device (55).

9. A vehicle air conditioning system with fresh air function according to claim 8, characterized in that: The terminal air supply system (4) further comprises an air supply control unit (43), wherein the air supply control unit (43) controls the operation of the small air supply blower (41) and the low-speed fan (42) of the terminal air supply system (4) in which it is located, and the central control system (6) controls the operation of each air supply control unit (43).

10. The vehicle air conditioning system with fresh air function according to claim 6, characterized in that: The terminal air supply system (4) also includes an infrared / temperature sensing system (44), which senses the state of the passenger position and sends the sensing signal to the central control system (6), and the central control system (6) controls the operation of each air supply control unit (43) according to the sensing signal.

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