Vehicle air conditioning system having fresh air function

Abstract

Disclosed in the present utility model is a vehicle air conditioning system having a fresh air function, comprising a power air port system. The power air port system comprises an air inlet duct, a cooling / heating system and an air supply duct; the air inlet duct is provided with a fresh air inlet and an internal circulation air inlet; a plurality of air outlet ducts are arranged at the tail end of the air supply duct; a tail end air supply system is arranged at a duct opening of each air outlet duct; each tail end air supply system comprises a small air supply fan and a low-speed fan; the tail end air supply systems mix low / high-temperature airflow of the cooling / heating system and indoor environment temperature airflow and then blow the mixed airflow to the position of a user in a compartment; a fresh air exchange device comprises a first duct and a second duct; an air suction fan is installed in the first duct and can actively suction fresh air into the compartment; and an air exhaust fan is installed in the second duct and can discharge stuffy air in the compartment out of a vehicle. The air suction fan and the air exhaust fan can be controlled in a centralized mode by means of an air conditioner central control system, effectively managing energy consumption of the vehicle air conditioning system, and improving comfort of passengers.

Description

Vehicle air conditioning system with fresh air function TECHNICAL FIELD

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

[0002] The existing automobile air conditioning centralized air supply system includes an air inlet pipe, a refrigeration / heat system and an air supply pipe, as shown in Figure 1, the air inlet pipe is provided with two air inlets, one air inlet 1a sends in fresh air, and the other air inlet 2a sends in internal circulating air, the outlet of the air inlet pipe is connected with the refrigeration / heat system, the outlet of the refrigeration / heat system is connected with the air supply pipe, the refrigeration / heat system includes a high-power air supply fan 3a and a heat exchanger 4a, the refrigeration / heat system sends the air in the air inlet pipe to the air supply pipe after refrigeration or heating, the air supply pipe is provided with a plurality of air outlets 5a at the end, the pipe openings of the air outlets 5a are located in different areas of the passenger compartment of the automobile, and the end of the air outlet is provided with a valve switch to control the air volume. The conventional automobile air conditioning air supply system has the following disadvantages: 1. The high-power air supply fan is relatively large in size and is placed in the engine compartment of the automobile, which seriously restricts the space layout of the engine compartment; 2. After the cold air / hot air is sent out by the high-power air supply fan, it is transmitted through the pipeline of the air supply pipe, especially the long-distance pipeline transmission in the rear area, which causes serious air volume 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 and blows it to the passengers, which causes the body temperature of the passengers to change too fast and reduces the comfort; 4. The centralized air supply system cannot perform differential air supply management on the ends of the air outlets, and the passengers at different positions cannot set different fan speeds according to their own needs, but only can set the valve at each air outlet to intercept the air volume by opening and closing the valve, which causes 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 to the passengers, which causes the body temperature of the passengers to change too fast and reduces the comfort; 6. The conventional automobile fresh air exchange is achieved by using the inertia of the vehicle during the driving process to push fresh air into the vehicle interior, but the unmanaged cold / hot air outside will affect the air conditioning effect in the vehicle, increase the energy consumption, and also reduce the comfort of the passengers.

[0003] SUMMARY

[0004] The utility model provides a kind of vehicle air conditioning system with fresh air function, to solve the technical problem of conventional automobile fresh air exchange in prior art, which is achieved by using the inertia of the vehicle during the driving process to push fresh air into the vehicle interior, but the unmanaged cold / hot air outside will affect the air conditioning effect in the vehicle, increase the energy consumption, and also reduce the comfort of the passengers.

[0005] The technical scheme of the utility model is as follows:

[0006] A vehicle air conditioning system with fresh air function, comprising a power air outlet system, wherein: the power air outlet system comprises an air inlet pipe, a refrigeration / heat 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 with the refrigeration / heat system, the refrigeration / heat system comprises a pipeline, a large air supply fan arranged in the pipeline and a heat exchanger, the outlet of the refrigeration / heat system is connected with the air supply pipe, the air supply pipe is provided with a plurality of air outlet pipes at the end, an end air supply system is arranged at the pipe opening of the air outlet pipe, the end 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, and the low-speed fan is arranged beside the pipe opening of the air outlet pipe; the end air supply system mixes the low / high temperature airflow of the refrigeration / heat system and the ambient temperature airflow in the room and blows to the position of the passenger in the vehicle cabin.

[0007] The vehicle air conditioning system is characterized in that: the system further comprises a fresh air replacement device, the fresh air replacement device comprises a first pipeline and a second pipeline, a suction fan is arranged in the first pipeline, the fresh air is actively sucked into the vehicle cabin through the inlet of the first pipeline under the action of the suction fan, an exhaust fan is arranged in the second pipeline, the inlet of the second pipeline is communicated with the inside of the vehicle cabin, and the turbid air in the vehicle cabin is discharged outside the vehicle through the outlet of the second pipeline under the action of the exhaust fan.

[0008] The two suction fans are arranged at the two end portions close to the first pipeline, and the two exhaust fans are arranged at the two end portions close to the second pipeline.

[0009] The air conditioning device comprises a filter, a surface cooler and a humidifier.

[0010] The fresh air temperature sensor and the fresh air valve are arranged at the fresh air inlet end of the first pipeline.

[0011] The exhaust fan and the suction fan are both pipeline high-speed small fans.

[0012] The end air supply system is controlled by the central control system.

[0013] The suction fan is controlled by the central control system.

[0014] The exhaust fan is controlled by the central control system, the temperature signal detected by the fresh air temperature sensor is sent to the central control system, and the central control system controls the fresh air valve and the air conditioning device.

[0015] The end air supply system further comprises an air supply control unit, the air supply control unit controls the operation of the small air supply fan and the low-speed fan of the end air supply system where the air supply control unit is located, and the central control system controls the operation of each air supply control unit.

[0016] The end air supply system further comprises an infrared / temperature sensing system, the infrared / temperature sensing system senses the state of the passenger position and sends a 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.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model discloses a fresh air function, and the fresh air device comprises a first pipeline and a second pipeline, a suction fan is installed in the first pipeline, under the action of the suction fan, fresh air is actively sucked into the vehicle compartment through the inlet of the first pipeline, an exhaust fan is installed in the second pipeline, the inlet of the second pipeline is communicated with the vehicle compartment, and under the action of the exhaust fan, the turbid air in the vehicle compartment is discharged out of the vehicle through the outlet of the second pipeline. The suction fan and the exhaust fan can be centrally controlled through the air conditioner central control system, the energy consumption of the vehicle air conditioning system can be effectively managed, and the comfort of passengers can be improved.

[0019] 2. Other advantages of the utility model are described in detail in the embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a structural principle diagram of the existing automobile air conditioner centralized air supply system;

[0021] Fig. 2 is a structural schematic diagram of the power air port system provided by the embodiment of the utility model;

[0022] Fig. 3 is an overall structure block diagram provided by the embodiment of the utility model;

[0023] Fig. 4 is a control block diagram provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] EMBODIMENT:

[0026] As shown in FIG. 2, FIG. 3 and FIG. 4, the embodiment provides a vehicle air conditioning system with fresh air function, comprising a power air outlet system 100, wherein: the power air outlet system 100 comprises an air inlet pipe 1, a refrigeration / heat system 2 and an air outlet 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 send fresh air and internal circulation air, the outlet of the air inlet pipe 1 is connected with the refrigeration / heat system 2, the refrigeration / heat 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 refrigeration / heat system 2 is connected with the air outlet pipe 3, the air outlet pipe 3 is provided with a plurality of air outlet pipes 31 at the end, an end air supply system 4 is arranged at the pipe opening of each air outlet pipe 31, the end 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, the end air supply system 4 mixes the low / high temperature airflow of the refrigeration / heat system 2 and the ambient temperature airflow in the room and blows to the user position in the vehicle cabin; characterized in that: further comprising a fresh air replacement device 5, the fresh air replacement device 5 comprises a first pipeline 51 and a second pipeline 53, an air suction fan 52 is arranged in the first pipeline 51, the fresh air is actively sucked into the vehicle cabin by the first pipeline 51 under the action of the air suction fan 52, an air exhaust fan 54 is arranged in the second pipeline 53, the inlet of the second pipeline 53 is communicated with the inside of the vehicle cabin, and the turbid air in the vehicle cabin is exhausted outside by the outlet of the second pipeline 53 under the action of the air exhaust fan 54.

[0027] An air conditioning device 55 is further arranged in the first pipeline 51, the air conditioning device 55 comprises a filter, a surface cooler and a humidifier. The filter can filter the dust or impurities in the fresh air; the surface cooler and the humidifier can adjust the temperature and humidity of the fresh air.

[0028] The fresh air temperature sensor 57 and the fresh air valve 56 are arranged at the fresh air inlet end of the first pipeline 51.

[0029] The air exhaust fan 54 and the air suction fan 52 are both high-speed small pipeline fans.

[0030] Two air suction fans 52 are arranged in the first pipeline 51, and the two air suction fans 52 are arranged near the two end portions of the first pipeline 51. The two air suction fans 52 can form a siphon effect.

[0031] Two exhaust fans 54 are installed in the second pipeline 53, and the two exhaust fans 54 are respectively arranged near the two end portions of the second pipeline 53. The two exhaust fans 54 are arranged to have a better effect, and the two exhaust fans 54 can form a siphon effect.

[0032] The terminal air supply system 4 is controlled by the central control system 6.

[0033] The exhaust fan 52 is controlled by the central control system 6.

[0034] 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 fresh air valve 56 and the air conditioning device 55 to work. The central control system 6 controls the fresh air valve 56 to open or close, thereby controlling the entry of fresh air.

[0035] 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 refrigeration / heating system 2 to the rear of the low-speed fan 42, and the low-speed fan 42 mixes the low / high-temperature airflow with the ambient temperature airflow and blows it to the user position. The low / high-temperature airflow and the ambient temperature airflow are mixed by the low-speed fan 42, so that the temperature and speed of the air are more comfortable.

[0036] The terminal air supply system 4 further includes an air supply control unit 43, which controls the high-speed small air supply fan 41 and the low-speed fan 42 of the terminal air supply system 4 where the air supply control unit 43 is located. The central control system 6 controls each air supply control unit 43 to work. Users at different positions can set the air speed of the terminal air supply system 4 according to their individual needs, better meeting the differentiated needs of users and improving the user experience.

[0037] The terminal air supply system 4 further includes an infrared / temperature sensing system 44, which senses the state of the user position and sends the sensing signal to the central control system 6, and the central control system 6 controls each air supply control unit 43 to work according to the sensing signal. The central control system 6 can differentially control each terminal air supply system 4 to work.

[0038] The air supply angle of the small air supply fan 41 and the low-speed fan 42 is adjustable, for example, the air supply angle can be adjusted within a range of 10 degrees to 90 degrees.

[0039] The state of the user position includes user presence / absence sensing, temperature sensing, and sleep sensing.

[0040] The infrared / temperature sensing system 44 identifies whether the seat has a user, whether the user is in a sleep state, and whether the body temperature of the user is too high or too low, and automatically adjusts the optimal temperature and wind speed state of different user positions through the centralized control system, improves the comfort of the user, and is more energy-saving and energy-saving.

[0041] The utility model discloses a fresh air function, and the fresh air device 5 includes the first pipeline 51, and the air suction fan 52 is installed in the first pipeline 51, and the fresh air is actively sucked into the compartment interior by the inlet of the first pipeline 51 under the action of the air suction fan 52. The air suction fan 52 can be controlled by the central control system 6 of the air conditioner, effectively manage the energy consumption of the vehicle air conditioning system, and improve the comfort of the passengers. The utility model discloses a fresh air device 5 also includes the second pipeline 53, and the exhaust fan 54 is installed in the second pipeline 53, and the inlet of the second pipeline 53 is communicated with the compartment interior, and the turbid air in the compartment interior is discharged outside the vehicle by the outlet of the second pipeline 53 under the action of the exhaust fan 54. The exhaust fan 54 can be controlled by the central control system 6 of the air conditioner, effectively manage the energy consumption of the vehicle air conditioning system, and improve the comfort of the passengers.

[0042] The power air port system is improved, the automobile is more energy-saving, and the passenger (i.e. user) experience is more comfortable, and the advantages are that:

[0043] 1. In the application of the automobile, the high-power centralized air supply fan in the engine compartment is cancelled, and a high-power air supply fan 21 is added in the centralized air supply pipeline, which can better arrange the space of the engine compartment and improve the rationality of the design of the engine compartment space.

[0044] 2. In the application of the automobile, the wind blown by the high-power air supply fan 21 is compensated by adding a high-speed low-power air supply fan 41 at the end of the air outlet pipeline, a negative pressure is generated by the siphon effect in the pipeline, the wind volume attenuation of the cold air (or hot air) in the pipeline is reduced, and the air supply efficiency of the fan system is improved.

[0045] 3. In the application of the automobile, each air outlet pipe 31 has an independent air supply control unit 43, which controls the low-power air supply fan 41 of each air outlet pipe 31 respectively; and the central control system 6 in the center console can also be used for centralized control, so that the rotation speed of the low-power air supply fan 41 of each air outlet pipe 31 can be controlled differently.

[0046] 4. The low-power air supply fan 41 is arranged in each air outlet pipe 31, and the rotation speed of the low-power air supply fan 41 can be set according to the individual needs of different positions, so that the differentiated needs of the personnel are better met, and the experience of the personnel is improved.

[0047] 5. Infrared / temperature sensing system 44 is added to each air outlet pipe 31, which can identify whether there is a person on the seat, whether the person is in a sleeping state, and whether the person's body temperature is too high or too low, and automatically adjust the optimal temperature and wind speed state for different personnel positions through the central control system 6, improve the comfort of the personnel.

[0048] 6. A low-speed fan 42 is added to each air outlet pipe 31, which mixes the ambient air with the cold (hot) air blown out by the low-power air supply fan 41 to blow onto the person's body, forming a natural wind, and improving the comfort of the person.

[0049] 7. The new air conditioning air supply system can realize constant air volume control, reduce the risk of air volume reduction caused by pipe static pressure rise due to filter screen blockage and other factors, and improve the experience of air conditioning refrigeration effect.

[0050] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle air conditioning system with fresh air function, comprising a powered air vent system (100), wherein: The power air outlet system (100) includes an air inlet duct (1), a cooling / heating system (2), and an air supply duct (3). The air inlet duct (1) is provided with a fresh air inlet (11a) and an internal circulation air inlet (11b). The outlet of the air inlet duct (1) is connected to the cooling / heating system (2). The cooling / heating system (2) includes a pipe (20), a large air supply fan (21) installed in the pipe (20), and a heat exchanger (22). The outlet of the cooling / heating system (2) is connected to the air supply duct (3). The end is provided with multiple air outlet pipes (31), and an end air supply system (4) is provided at the pipe opening of the air outlet pipe (31). The end air supply system (4) includes a small air supply fan (41) and a low-speed fan (42). The small air supply fan (41) is located at the end of the air outlet pipe (31), and the low-speed fan (42) is located next to the pipe opening of the air outlet pipe (31). The end air supply system (4) mixes the low / high temperature airflow of the cooling / heating system (2) with the ambient temperature airflow in the room and blows it to the passenger position inside the carriage. Its features are: It also includes a fresh air exchange device (5), which includes a first pipe (51) and a second pipe (53). A suction fan (52) is installed in the first pipe (51). Under the action of the suction fan (52), fresh air is actively drawn into the carriage through the inlet of the first pipe (51). An exhaust fan (54) is installed in the second pipe (53). The inlet of the second pipe (53) is connected to the inside of the carriage. Under the action of the exhaust fan (54), the stale air inside the carriage is discharged outside the carriage 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 located at the two ends near the first pipe (51); two exhaust fans (54) are installed in the second pipe (53), and the two exhaust fans (54) are respectively located at the two ends near 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 duct (51), which includes 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 installed at the fresh air inlet end of the first duct (51).

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

6. A vehicle air conditioning system with fresh air function according to claim 4, characterized in that: The terminal air supply system (4) is controlled by the 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. A 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). The fresh air temperature sensor (57) sends the detected temperature signal to the central control system (6). The central control system (6) controls the fresh air valve (56) and the air conditioning device (55) to work.

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

10. A 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 status of the passenger's position and sends the sensing signal to the central control system (6). The central control system (6) controls each air supply control unit (43) to work according to the sensing signal.

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