Air conditioning unit structure suitable for the confined space of low-altitude aircraft

Abstract

This utility model belongs to the field of air conditioning technology and relates to an air conditioning unit structure suitable for the confined space of low-altitude aircraft. It includes an air inlet housing, a volute, a lower housing, internal and external circulation dampers, a blower, and an evaporator. One end of the air inlet housing has an air intake duct, and the other end is connected to the volute. The lower housing is located at the bottom and connects to both the air inlet housing and the volute. The evaporator is located at the end of the air inlet housing near the volute. The blower is located within the volute and parallel to the evaporator, and an air outlet duct is provided on the volute to expel the air drawn in by the blower from the air intake duct. This utility model, by integrating the air inlet housing, volute, and lower housing, adjusting the blower position, and eliminating the transition duct and distribution box, significantly reduces the size of the air conditioning unit in the X and Z directions, resulting in a more compact structure. This innovation not only solves the space problem but also simplifies the overall design, providing convenience for subsequent manufacturing and maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology and relates to an air conditioning box structure suitable for the confined space of low-altitude aircraft. Background Technology

[0002] Currently, the global low-altitude economy is entering a phase of rapid growth, and with strong support and promotion from policies across my country, the small aircraft market is experiencing a leapfrog development. However, in the field of manned enclosed low-altitude aircraft, a pressing problem needs to be addressed. Due to the high-altitude environment during flight, high radiation levels cause a rapid increase in cabin temperature, resulting in extremely harsh internal air conditions. Currently, most low-altitude aircraft on the market are not equipped with dedicated air conditioning systems, relying primarily on side windows for ventilation to manage internal temperature and humidity. This simple ventilation method has significant drawbacks; its cooling and temperature control capabilities are very limited, making it difficult to effectively improve the high-temperature conditions inside the cabin. Furthermore, during flight, open windows generate considerable wind noise and expose passengers directly to external airflow, leading to a poor riding experience. This not only affects passenger comfort but also damages the product's brand image and negatively impacts market promotion.

[0003] To enhance the market competitiveness of manned low-altitude aircraft and improve the comfort and safety of passengers, effective management of the air inside the cockpit is crucial. Specifically, this requires achieving air circulation and ventilation within the cockpit, and precisely controlling the temperature, humidity, and wind speed to create a comfortable and pleasant cabin environment for passengers.

[0004] Traditional automotive air conditioning units typically consist of an air intake box, a volute, a transition duct, an evaporator assembly, and a distribution box. This structure requires ample space to accommodate all components, resulting in a large and heavy overall size. However, manned low-altitude aircraft have limited internal space and strict weight restrictions. These characteristics of traditional automotive air conditioning units make them unsuitable for low-altitude aircraft. Directly applying traditional automotive air conditioning units to low-altitude aircraft would not only occupy valuable space but also increase the overall weight, impacting performance and flight safety.

[0005] Therefore, in order to adapt to the special operating environment of manned low-altitude aircraft and meet its requirements for miniaturization and lightweight air conditioning systems, it is particularly necessary to design a miniaturized and lightweight air conditioning box assembly specifically for manned low-altitude aircraft. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an air conditioning box structure suitable for the confined space of low-altitude aircraft, so as to solve the existing problems in the internal air management of manned low-altitude aircraft.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An air conditioning unit structure suitable for the confined space of low-altitude aircraft includes an air inlet casing, a volute casing, a lower casing, internal and external circulation dampers, a blower, and an evaporator;

[0009] The air inlet housing has an air inlet duct at one end and is connected to the volute at the other end. The lower housing is located at the bottom and is connected to the air inlet housing and the volute respectively.

[0010] The evaporator is arranged at one end of the air inlet housing near the volute, the blower is arranged in the volute and parallel to the evaporator, and an air outlet duct is provided on the volute to send out the air drawn in by the blower from the air inlet duct.

[0011] Furthermore, the air intake duct includes an external circulation air intake duct and an internal circulation air intake duct arranged in an L-shape on the air intake housing, and an internal and external circulation damper is provided in the air intake housing between the external circulation air intake duct and the internal circulation air intake duct for controlling the opening and closing of the external circulation air intake duct and the internal circulation air intake duct.

[0012] Furthermore, it also includes an L-shaped filter screen, one end of which is embedded in the air inlet housing to filter the air in the external circulation air intake duct, and the other end of which covers the internal circulation air intake duct to filter the air in the internal circulation air intake duct.

[0013] Furthermore, the internal and external circulation dampers are rotary dampers.

[0014] Furthermore, the air inlet housing is also provided with an actuator for driving the inner and outer circulation dampers to drive the inner and outer circulation dampers to rotate, thereby controlling the opening and closing of the outer circulation air inlet duct and the inner circulation air inlet duct.

[0015] Furthermore, the actuator is a motor.

[0016] Furthermore, a rubber sealing ring or sealing strip is provided at the connection between the air inlet housing and the volute housing for sealing.

[0017] Furthermore, the air inlet housing has a split structure for easy installation.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model addresses the space constraints of low-altitude aircraft by designing a miniaturized and lightweight air conditioning unit structure. Traditional air conditioning units, due to their complex structure and large size, are difficult to adapt to the space limitations of low-altitude aircraft. This solution integrates the air intake shell, volute, and lower shell, adjusts the blower position, and eliminates the transition air duct and distribution box, significantly reducing the size of the air conditioning unit in the X and Z directions, resulting in a more compact structure. This innovation not only solves the space problem but also simplifies the overall design, providing convenience for subsequent manufacturing and maintenance.

[0020] 2. Compared to traditional designs, this technical solution excels in size reduction and structural simplification. Traditional air conditioning units occupy a large space due to redundant components such as transition ducts, while this solution optimizes the layout and eliminates unnecessary components, making the air conditioning unit more adaptable to confined environments. Simultaneously, the integrated structure reduces the number of parts, lowering assembly difficulty and production costs. This compact design not only improves space utilization but also strongly supports the lightweight requirements of low-altitude aircraft.

[0021] 3. This technical solution also offers significant improvements in air quality and ease of use. The L-shaped filter effectively filters air impurities, improving cabin air quality; the actuator enables precise control of internal and external air circulation, meeting the needs of different flight conditions. Furthermore, the split-type air intake housing design simplifies installation and maintenance processes, and the removal and replacement of the L-shaped filter is more convenient. These improvements collectively create a more comfortable and safer air environment for passengers, demonstrating the practical value and application prospects of this technical solution.

[0022] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of an air conditioning unit structure suitable for the confined space of a low-altitude aircraft, as shown in the embodiment.

[0025] Figure 2 This is a cross-sectional view of an air conditioning unit structure suitable for the confined space of a low-altitude aircraft, as shown in the embodiment.

[0026] Figure 3 This is a schematic diagram of the L-shaped filter screen in the embodiment;

[0027] Figure 4 This is an internal circulation flow field diagram of an air conditioning unit structure suitable for the confined space of a low-altitude aircraft, as shown in the embodiment.

[0028] Figure 5 This is an external circulation flow field diagram of an air conditioning unit structure suitable for the confined space of a low-altitude aircraft, as shown in the embodiment.

[0029] Figure 6 This is an internal and external circulation flow field diagram of an air conditioning unit structure suitable for the confined space of a low-altitude aircraft, as shown in the embodiment.

[0030] Figure reference numerals: 1. External circulation air intake duct; 2. Internal and external circulation damper; 3. L-shaped filter screen; 4. Air intake housing; 5. Evaporator; 6. Volute housing; 7. Lower housing; 8. Blower; 9. Actuator; 10. Internal circulation air intake duct; 11. Air outlet duct. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1

[0035] This embodiment provides an air conditioning unit structure suitable for the confined space of low-altitude aircraft, such as... Figure 1 and Figure 2 As shown. The air conditioning unit structure includes an air inlet housing 4, a volute housing 6, a lower housing 7, internal and external circulation dampers 2, a blower 8, and an evaporator 5.

[0036] One end of the air inlet housing 4 is equipped with an air inlet duct, and the other end is connected to the volute 6. The lower housing 7 is located at the bottom and connects the air inlet housing 4 and the volute 6 to form an integral structure. The evaporator 5 is installed at the end of the air inlet housing 4 near the volute 6 and is used for heat exchange of the incoming air. The blower 8 is arranged inside the volute 6, parallel to the evaporator 5, and has an air outlet duct 11 on the volute 6 to deliver the treated air out.

[0037] The air intake duct includes an external circulation air intake duct 1 and an internal circulation air intake duct 10, which are arranged in an L-shape within the air intake housing 4. An internal / external circulation damper 2 is located between the external circulation air intake duct 1 and the internal circulation air intake duct 10. This damper is a rotary type, and its rotation switches between internal and external circulation modes, controlling the opening and closing of the two ducts. A rubber sealing ring or sealing strip is provided at the connection between the air intake housing 4 and the volute 6 to ensure airtightness and prevent air leakage.

[0038] The working principle of the air conditioning unit is as follows: After the blower 8 starts, air is drawn in from the external circulation air intake duct 1 and / or the internal circulation air intake duct 10. After the air is cooled or heated by the evaporator 5, it is sent out by the blower 8 through the air outlet duct 11 to realize the circulation of air in the cabin and the regulation of temperature and humidity.

[0039] This embodiment integrates the air intake housing, volute housing, and lower housing, adjusts the position of the blower 8, and eliminates the traditional transition air duct and distribution box design, significantly reducing the size of the air conditioning unit in the X and Z directions, making the structure more compact and very suitable for the use needs of low-altitude aircraft in confined spaces.

[0040] Example 2

[0041] This embodiment is an improvement on embodiment 1, adding an L-shaped filter 3 and an actuator 9, and optimizing the design of the air inlet housing 4, such as... Figures 3 to 6 As shown.

[0042] Compared to Embodiment 1, this embodiment adds an L-shaped filter 3 to the air inlet housing 4. One end of the L-shaped filter 3 is embedded in the air inlet housing 4 to filter external air in the external circulation air intake duct 1 and to serve as the mounting point for the L-shaped filter 3; the other end covers the internal circulation air intake duct 10 to filter the circulating air inside the chamber. The shape design of the L-shaped filter 3 makes full use of the limited space, facilitating installation and disassembly, and making subsequent replacement or cleaning more convenient.

[0043] Furthermore, this embodiment adds an actuator 9 to the air inlet housing 4 to drive the rotation of the internal and external circulation dampers 2. The actuator 9 uses a motor and can precisely control the opening and closing angle of the dampers, thereby flexibly adjusting the on / off state of the external circulation air intake duct 1 and the internal circulation air intake duct 10. The air inlet housing 4 also adopts a split structure, which facilitates assembly and maintenance through disassembly design, further improving practicality.

[0044] The working process of the air conditioning unit structure in this embodiment is as follows:

[0045] Inner loop pattern (e.g.) Figure 4 As shown): Actuator 9 drives the internal and external circulation damper 2 to close the external circulation air intake duct 1 and open the internal circulation air intake duct 10. Blower 8 draws air from the cabin through the internal circulation air intake duct 10, filters it through L-shaped filter screen 3, enters evaporator 5 for heat exchange, and finally sends it back into the cabin through air outlet duct 11, realizing internal air circulation.

[0046] External loop mode (e.g.) Figure 5 As shown): Actuator 9 drives the internal and external circulation dampers 2 to open the external circulation air intake duct 1 and close the internal circulation air intake duct 10. Blower 8 draws in outside air from the external circulation air intake duct 1, filters it through the L-shaped filter screen 3, enters the evaporator 5 for heat exchange, and then sends it into the cabin through the air outlet duct 11 to achieve external air circulation.

[0047] Hybrid internal and external circulation mode (e.g.) Figure 6 As shown): Actuator 9 drives the internal and external circulation dampers 2 to partially open the external circulation air intake duct 1 and the internal circulation air intake duct 10 simultaneously. Blower 8 draws air in from the two ducts, which is filtered by L-shaped filter screen 3 and heat exchanged by evaporator 5 before being sent into the cabin through air outlet duct 11, thus achieving air mixing and circulation.

[0048] The advantages of this embodiment are that, while maintaining a compact size, it improves air quality through the L-shaped filter 3, achieves precise control of internal and external circulation through the actuator 9, and enhances the convenience of installation and maintenance through the split air intake housing 4. This design not only meets the space requirements of low-altitude aircraft but also provides a more comfortable air environment for the pilots and passengers.

[0049] Through the description of the above embodiments, those skilled in the art can clearly understand the structure and working principle of the air conditioning unit of this utility model. This structure achieves miniaturization and lightweighting through innovative design, while possessing internal and external air regulation, ventilation, and cooling functions, significantly improving the comfort and safety of the cockpit of low-altitude aircraft.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An air conditioning unit structure suitable for the confined space of low-altitude aircraft, characterized in that, This includes the air inlet casing, volute, lower casing, internal and external circulation dampers, blower, and evaporator; The air inlet housing has an air inlet duct at one end and is connected to the volute at the other end. The lower housing is located at the bottom and is connected to the air inlet housing and the volute respectively. The evaporator is arranged at one end of the air inlet housing near the volute, the blower is arranged in the volute and parallel to the evaporator, and an air outlet duct is provided on the volute to send out the air drawn in by the blower from the air inlet duct.

2. The air conditioning unit structure according to claim 1, characterized in that, The air intake duct includes an external circulation air intake duct and an internal circulation air intake duct arranged in an L-shape on the air intake housing. An internal and external circulation damper is provided in the air intake housing between the external circulation air intake duct and the internal circulation air intake duct to control the opening and closing of the external circulation air intake duct and the internal circulation air intake duct.

3. The air conditioning unit structure according to claim 1, characterized in that, It also includes an L-shaped filter, one end of which is embedded in the air inlet housing to filter the air in the external circulation air intake duct, and the other end covers the internal circulation air intake duct to filter the air in the internal circulation air intake duct.

4. The air conditioning unit structure according to claim 1, characterized in that, The internal and external circulation dampers are rotary dampers.

5. The air conditioning unit structure according to claim 4, characterized in that, An actuator for driving the inner and outer circulation dampers is also provided on the air inlet housing to drive the inner and outer circulation dampers to rotate, thereby controlling the opening and closing of the outer circulation air inlet duct and the inner circulation air inlet duct.

6. The air conditioning unit structure according to claim 5, characterized in that, The actuator is a motor.

7. The air conditioning unit structure according to claim 1, characterized in that, A rubber sealing ring or sealing strip is also provided at the connection between the air inlet housing and the volute housing for sealing.

8. The air conditioning unit structure according to claim 1, characterized in that, The air inlet housing has a split structure for easy installation.

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