Air conditioning system

Abstract

This disclosure provides an air conditioning system, comprising: an air supply device for supplying air into a room; the air supply device including an air outlet for blowing air into the room; the air outlet including two or more air outlet units, at least one of the air outlet units being provided with an air outlet; the air outlet further including: an air intake space located upstream of the plane where the air outlet is located and communicating with the indoor space; an air intake channel located between two adjacent air outlet units and communicating with the air intake space; the air conditioning system further including an active air supply device for supplying air into the room; the active air supply device including: an active air intake for blowing air into the room; the active air intake is closer to the air intake space than the air outlet. The air conditioning system of this disclosure can achieve uniform air supply while improving air replenishment efficiency, and combines high air supply comfort with low noise performance.

Description

This disclosure relates to the field of air conditioning equipment technology, specifically to an air conditioning system. Background Art: Existing air conditioning systems include an air supply device for supplying air to a room. The air supply device includes an air supply section, an air outlet section, and ducts connecting the air supply section and the air outlet section. The air outlet section includes a plurality of air outlet ducts and air outlets facing the room, located on the air outlet ducts. Adjacent air outlet ducts are spaced apart, forming an air intake duct. When the air supply device is operating, air is blown towards the air outlet section through the ducts by the air supply section, and then into the room through the plurality of air outlet ducts. The air exiting through the plurality of air outlet ducts creates a low-pressure area upstream of the plane where the air outlet is located in the room. Consequently, air near the air outlet in the room flows towards the low-pressure area and, driven by the airflow from the air outlet, is blown towards the air outlet through the air intake duct. This achieves uniform air supply to the room while supplementing air volume and saving energy. As described in the background, in an air conditioning system, the higher the air velocity at the outlet of the air supply device, the greater the air volume. The lower the air pressure upstream of the outlet, and the greater the pressure difference between the outlet and the indoor air pressure, the more air enters the exhaust duct, resulting in a greater supply of air. However, on the other hand, high-speed airflow can cause discomfort to users. Furthermore, excessively high air velocity at the outlet can lead to noise generation. To balance comfort, the air velocity of the air supply device is generally limited. Therefore, even with an exhaust duct, the air volume supplied solely through backflow caused by pressure difference is relatively small. Summary of the Invention In order to solve the above-mentioned problems, this disclosure provides an air conditioning system in which air blown out from the active air supply outlet is drawn into the air intake space and blown into the room through the air intake channel. Even if the air velocity at the air outlet of the air supply device is low, the air volume supplied through the active air supply outlet can provide sufficient air volume. Thus, it is possible to improve the air supply efficiency while achieving uniform air supply, and has the performance of high air supply comfort and low noise. The air conditioning system disclosed herein includes: an air supply device for supplying air into a room; the air supply device includes an air outlet for blowing air into the room; the air outlet includes two or more air outlet units, at least one of the air outlet units being provided with an air outlet; the air outlet further includes: an air intake space located upstream of the plane where the air outlet is located and communicating with the indoor space; an air intake channel located between two adjacent air outlet units and communicating with the air intake space; the air conditioning system further includes an active air supply device for supplying air into the room; the active air supply device includes: an active air outlet for blowing air into the room; the active air outlet is closer to the air intake space than the air outlet.In some optional embodiments, in the direction of the air outlet facing the air intake space, the active air supply outlet is closer to the air intake space than the center surface of the air outlet unit. In some optional embodiments, the active air supply outlet is located on one side of the air outlet unit and faces the air outlet unit. In some optional embodiments, the air supply device further includes: a return air inlet for allowing indoor air to enter; the active air supply device further includes: an active return air inlet for allowing indoor air to enter. In some optional embodiments, the return air inlet and the active return air inlet are located on the same side of the air outlet. In some optional embodiments, the return air inlet and the active return air inlet are located on opposite sides of the air outlet. 2 HK 30135228 A Specification In some optional embodiments, the return air inlet and the air outlet form a first line, and the active return air inlet and the active air supply outlet form a second line, the first line and the second line being parallel to each other. In some optional embodiments, the active air supply device further includes an air handling unit for processing indoor air entering through the active return air inlet. In some optional embodiments, the active air supply device further includes an outdoor air inlet for introducing fresh outdoor air into the room. In some optional embodiments, the air outlet is located at the bottom of the air outlet unit. Figure 1 is a schematic diagram of one embodiment of the air conditioning system of this disclosure; Figure 2 is a front view of an embodiment of the air conditioning system of this disclosure; Figure 3 is a partially enlarged schematic diagram of point A in Figure 2; Figure 4 is a schematic diagram of the air outlet of an embodiment of this disclosure; Figure 5 is another schematic diagram of the air conditioning system of an embodiment of this disclosure; Figure 6 is a schematic diagram of airflow in a first embodiment of the air conditioning system of this disclosure; Figure 7 is a schematic diagram of airflow in a second embodiment of the air conditioning system of this disclosure; Figure 8 is a partial bottom view of a third embodiment of the air conditioning system of this disclosure; Figure 9 is another partial bottom view of a third embodiment of the air conditioning system of this disclosure. Reference numerals: Air supply device 1, air supply section 11, duct 111, air outlet 12, air outlet unit 121, top wall 1211, vertical side wall 1212, inclined side wall 1213, air outlet 1214, air outlet unit inlet 1215, air intake space 122, air intake channel 123, return air outlet 13, active air supply device 2, active air supply outlet 21, active return air outlet 22, first active air supply device 3, first active air supply outlet 31, second active air supply device 4, second active air supply outlet 41, first connecting line 5, second connecting line 6.Detailed Description of Embodiments 3 HK 30135228 A Specification To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this disclosure, but not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure. The following orientations or positional relationships are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Specifically, in addition, 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 disclosure, it should be noted that unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances. This disclosure provides an air conditioning system. The air conditioning system of this disclosure will be specifically described below with reference to Figures 1 to 9. Figure 1 is a structural schematic diagram of an air conditioning system according to an embodiment of this disclosure; Figure 2 is a front view of an air conditioning system according to an embodiment of this disclosure; Figure 3 is a partially enlarged schematic diagram of point A in Figure 2; Figure 4 is a structural schematic diagram of the air outlet of an embodiment of this disclosure; Figure 5 is another structural schematic diagram of an air conditioning system according to an embodiment of this disclosure. As shown in Figures 1 to 5, this disclosure provides an air conditioning system, including an air supply device 1 for supplying air to a room and an active air supply device 2. Supplying air to a room includes, but is not limited to, supplying air to one room space or supplying air to multiple room spaces. For ease of explanation, the following embodiments are described with the air supply device 1 and the active air supply device 2 installed on the ceiling. In this disclosure, the air supply device 1 or the active air supply device 2 may also be installed on a wall or in other locations within the room. 4 HK 30135228 A Specification Air Supply Device 1 includes an air inlet, an air outlet 12, and an air supply section 11. The air inlet is used to supply air into the air supply device 1 and includes an air inlet formed by an opening for air to enter. The air source can be indoor air, outdoor air, or a combination of both. In this embodiment, the air inlet includes a return air inlet 13 formed by an opening for indoor air to enter. In other embodiments, the air inlet may also include an outdoor air inlet for outdoor air to enter.The air outlet 12 is used to supply air from the air supply device 1 to the room, and is located in the indoor space, including two or more air outlet units 121. "Two or more" means including two units. When there are multiple air outlet units 121, they are spaced apart horizontally. Each air outlet unit 121 also includes an air inlet 1215 for supplying air into the unit, and an air outlet duct connecting the air inlet 1215 and the outlet 1214. In this embodiment, the air outlet unit 121 is a hollow cuboid, and its length is set according to actual needs. Along the length of the air outlet unit 121, its two ends are defined as the first end and the second end, respectively. The first end of the air outlet unit 121 has an air outlet inlet 1215, which is connected to the air supply section 11. The second end of the air outlet unit 121 is a closed structure. The length of the air outlet section 12 is consistent with the length of the air outlet unit 121, and along the length of the air outlet section 12, its two ends are defined as the first end and the second end, respectively. Along the arrangement direction of the plurality of air outlet units 121, the opposite sides of the air outlet section 12 are defined as the first side and the second side, respectively. As shown in Figures 3 and 4, the air outlet unit 121 includes a top wall 1211, two opposing vertical side walls 1212, and two opposing inclined side walls 1213. The vertical side walls 1212 are perpendicular to the horizontal plane, and the inclined side walls 1213 are at a predetermined angle to the horizontal plane. One end of each vertical side wall 1212 is connected to the top wall 1211, and the other end is connected to the inclined side wall 1213. Thus, the top wall 1211, the two vertical side walls 1212, and the two inclined side walls 1213 together form an air outlet duct. In this embodiment, the air outlet unit inlet 1215 is located on the vertical side wall 1212. In other embodiments, the air outlet unit inlet 1215 may also be located on the top wall 1211. 5 HK 30135228 A Specification At least one air outlet unit 121 is provided with an air outlet 1214, or each air outlet unit 121 may be provided with an air outlet 1214. The air outlet 1214 is located on the air outlet unit 121 and connects to the indoor space, allowing air to be blown into the room. In this embodiment, the air outlet 1214 is located at the bottom of the air outlet unit 121, that is, the air outlet 1214 is located at the end of the inclined side wall 1213 of the air outlet unit 121 away from the vertical side wall 1212.Two inclined sidewalls 1213 are spaced apart at their ends away from the vertical sidewall 1212, thereby forming an air outlet 1214 between the ends of the two inclined sidewalls 1213. The air outlet 1214 can extend from the first end to the second end of the air outlet unit 121, or it can be provided only in a certain section of the air outlet unit 121. For example, the air outlet 1214 can be provided within 1 / 3 to 2 / 3 of the length of the air outlet unit 121, and in the section outside the air outlet 1214, the ends of the two inclined sidewalls 1213 away from the vertical sidewall 1212 are connected. It is understood that the air outlet unit 121 can also be composed of a top wall 1211, two opposing vertical side walls 1212, and a bottom wall. The top wall 1211 and the bottom wall are arranged parallel to each other at intervals. One end of the vertical side wall 1212 is connected to the top wall 1211, and the other end is connected to the bottom wall. A long strip-shaped air outlet 1214 of a preset size is provided on the bottom wall. The air supply section 11 is used to supply air from the air inlet to the air outlet 1214. The air supply section 11 includes an air supply unit and a duct 111. The air supply unit is used to draw air in from the air inlet and then blow it out to the air outlet 1214. The duct 111 connects the air inlet and the air outlet section 121. Specifically, in this embodiment, the duct 111 is connected to the air inlet 1215 of the air outlet unit, so that the air from the air inlet enters the air outlet unit 121 through the duct 111. The air outlet 12 also includes an air intake space 122 and an air intake channel 123. As shown in Figures 2 and 3, the air intake space 122 is a space located upstream of the plane where the air outlet 1214 is located and communicates with the indoor space. In this embodiment, the air intake space 122 is located above the top wall 1211 of the air outlet unit 121. That is, the air conditioning system is installed on the ceiling, and a portion of the ceiling is recessed to form a space to accommodate the air outlet 12, or the air outlet 12 is suspended from the ceiling, and there is a certain distance between the ceiling and the top wall 1211 of the air outlet unit 121, forming the air intake space 122. The air intake space 122 includes an air intake that communicates with the indoor space. In this embodiment, the air intake is located on one side of the air outlet. Specifically, the air vent is located on at least one side of the vertical sidewall 1212 adjacent to the air inlet 1215 of the air outlet unit, as described in the instruction manual 6 HK 30135228 A. That is, the air vent is located on the first and / or second side of the air outlet 12. An opening is made in the sidewall of the ceiling corresponding to the first side of the air outlet 12 to form the air vent, or an opening is made in the sidewall of the ceiling corresponding to the second side of the air outlet 12 to form the air vent. An air duct 123 is formed between two adjacent air outlet units 121, and the air duct 123 communicates with the air vent space 122 and the indoor space.The active air supply device 2 is used to supply air into the room. The active air supply device 2 includes an active air intake section, an active air outlet section, and an active air supply section. The active air intake section is used to supply air into the active air supply device 2 and includes an active air inlet for air intake. The active air inlet includes an active return air inlet 22 for indoor air intake. In other embodiments, the active air inlet also includes an outdoor air inlet for outdoor air intake. To distinguish it from the outdoor air inlet of the air supply device 1, the outdoor air inlet of the active air supply device 2 is defined as an outdoor active air inlet. The active air outlet section is located indoors and is used to blow air from the active air supply device 2 into the room. It includes an active air supply outlet 21 formed by an opening for supplying air into the room. The active air supply outlet 21 is closer to the air intake space 122 than the air outlet 1214; that is, the distance between the plane of the active air supply outlet 21 and the air intake space 122 is less than the distance between the plane of the air outlet 1214 and the air intake space 122. In this embodiment, the active air supply outlet 21 is located on the side wall of the ceiling corresponding to the first side of the air outlet 12, and the active air supply outlet 21 is located above the plane where the air outlet 1214 is located. The working process of the air conditioning system is described below. When the air supply device 1 is running, the air supply unit starts to operate, and air enters from the air inlet and is blown towards the air outlet 12 along the duct 111 under the action of the air supply unit. Indoor air enters from the return air inlet 13 and is blown towards the air outlet 12 along the duct 111. The air blown from the duct 111 towards the air outlet 12 enters the air outlet unit 121 through the air outlet unit inlet 1215, and is blown towards the air outlet 1214 along the air outlet duct, and then blown out into the room through the air outlet 1214. Air is blown out from the air outlet 1214, increasing the air pressure in the area downstream of the plane containing the air outlet 1214 and relatively decreasing the air pressure in the area upstream of the plane containing the air outlet 1214 in the indoor space. Since an air intake space 122 is provided upstream of the plane containing the air outlet 1214, the air pressure in the air intake space 122 is lower than the air pressure in the area upstream of the plane containing the air outlet 1214. Because the air intake space 122 is connected to the indoor space through an air intake vent, a portion of the air in the indoor space near the air outlet 12 is drawn into the air intake space 122 through the air intake vent. Attracted by the airflow from the air outlet 1214, the air in the air intake space 122 flows towards the area downstream of the plane containing the air outlet 1214.Since an air intake channel 123 communicating with the air intake space 122 is formed between two adjacent air outlet units 121, the air in the air intake space 122 will be blown downstream of the plane where the air outlet 1214 is located via the air intake channel 123, and mixed with the air blown out of the air outlet 1214, and together they will be supplied to the room. In the embodiments of this disclosure, since the active air supply port 21 is closer to the air intake space 122 than the air outlet 1214, when the air pressure in the air intake space 122 is low, the air blown out from the active air supply port 21 will be drawn into the air intake space 122 and blown out to the room through the air intake channel 123. Even if the wind speed at the air outlet 1214 of the air supply device 1 is low, the air volume supplied through the active air supply port 21 can provide sufficient air volume. Thus, it is possible to achieve uniform air supply while improving the air supply efficiency, and to have both high air supply comfort and low noise performance. Furthermore, in the direction from the air outlet 1214 toward the air intake space 122, the active air supply port 21 is closer to the air intake space 122 than the center plane of the air outlet unit 121. The center plane of the air outlet unit 121 refers to the horizontal plane containing the center planes of the two vertical sidewalls 1212 of the air outlet unit 121 in the direction from the plane containing the air outlet 1214 toward the air intake space 122. In this embodiment, the active air supply port 21 is located above the center planes of the vertical sidewalls 1212 of the air outlet unit 121. Further, as shown in Figures 1 and 5, the active air supply port 21 is located on one side of the air outlet unit 121 and faces the air outlet unit 121. In this embodiment, the active air supply port 21 is located on one side of the air outlet unit 121 adjacent to the side containing the air inlet 1215 of the air outlet unit, and faces that side. For example, the active air outlet 21 is located on the first side of the air outlet 12. The active air outlet is used to deliver air from the active air inlet to the active air outlet, and includes an active air outlet unit and a duct. The active air outlet unit is used to draw air in from the active air inlet and then blow it out to the active air outlet. The duct connects the active air inlet and the active air outlet 12. In this embodiment, as shown in FIG5, the active air outlet device includes a first active air outlet device 3 and a second active air outlet device 4. Optionally, both the first active air outlet device 3 and the second active air outlet device 4 are located on the first side of the air outlet 12. The first active air outlet device 3 includes an air handling unit that processes the flowing air. Processing the air refers to processing one or more of the following indicators: temperature, humidity, and quality. In this embodiment, the air handling unit includes a refrigeration circuit that can heat or cool the air through heat exchange.The first active air supply device 3 includes an active return air inlet 22 for supplying indoor air, and also includes a first active air supply outlet 31. The second active air supply device 4 includes an outdoor active air inlet connected to the outside for supplying outdoor air, and also includes a second active air supply outlet 41. It is understood that the first active air supply outlet 31 and the second active air supply outlet 41 are provided on the side wall of the ceiling corresponding to the first side of the air outlet 12. Optionally, the return air inlet 13 and the active return air inlet 22 are located on the same side of the air outlet 12. "Same side" means that, relative to the air outlet 12, the return air inlet 13 and the active return air inlet 22 are located on the same side of the air outlet 12. In this embodiment, both the return air inlet 13 and the active return air inlet 22 are located on the side of the air outlet 12 facing the active air supply outlet 21. Specifically, both the return air vent 13 and the active return air vent 22 are located on the first side of the air outlet section 12, and the return air vent 13 and the active return air vent 22 are farther away from the air outlet section 12 than the active supply air vent 21. That is, the horizontal distance between the return air vent 13 and the air outlet section 12, and the horizontal distance between the active return air vent 22 and the air outlet section 12, are both greater than the horizontal distance between the active supply air vent 21 and the air outlet section 12. Optionally, the return air vent 13 and the active return air vent 22 are located on opposite sides of the air outlet section 12. The air outlet 12 includes multiple air outlet units 121. Along the arrangement direction of the multiple air outlet units 121, the side adjacent to the first end of each air outlet unit 121 is the first side of the air outlet 12, and the side adjacent to the last end of each air outlet unit 121 is the second side of the air outlet 12. The active return air inlet 22 is located on the first side of the air outlet 12, and the return air inlet 13 is located on the second side of the air outlet 12. The following describes the working process of three embodiments based on the different positions of the return air inlet 13, the active return air inlet 22, and the active supply air inlet 21 in the air conditioning system. Figure 6 is a schematic diagram of airflow in the air conditioning system according to the first embodiment of this disclosure; Figure 7 is a schematic diagram of airflow in the air conditioning system according to the second embodiment of this disclosure; Figure 8 is one of the partial bottom views of the air conditioning system according to the third embodiment of this disclosure; Figure 9 is another partial bottom view of the air conditioning system according to the third embodiment of this disclosure. As shown in Figure 6, in the first embodiment, the return air vent 13 and the active return air vent 22 are located on the same side of the air outlet 12. For example, both the return air vent 13 and the active return air vent 22 are located on the first side of the air outlet 12, and the active air supply vent 21 is also located on the first side of the air outlet 12. Other structures of the air conditioning system are as described above and will not be repeated here.When the air supply device 1 is running, the air supply unit starts operating, and air enters from the air inlet and, under the action of the air supply unit, is blown towards the air outlet 12 along the duct 111. Indoor air enters from the return air inlet 13 and is blown towards the air outlet 12 along the duct 111. Air blown from the duct 111 towards the air outlet 12 enters the air outlet unit 121 through the air outlet inlet 1215, and is blown towards the air outlet 1214 along the air outlet duct, and then blown out of the room through the air outlet 1214. The air being blown out of the air outlet 1214 increases the air pressure in the area downstream of the plane containing the air outlet 1214, while relatively decreasing the air pressure in the area upstream of the plane containing the air outlet 1214 within the indoor space. Because an air intake space 122 is located upstream of the plane containing the air outlet 1214, the air pressure in the air intake space 122 is lower than the air pressure in the area upstream of the plane containing the air outlet 1214. Since the air intake space 122 is connected to the indoor space via an air intake, a portion of the air near the air outlet 12 in the indoor space will be drawn into the air intake space 122 through the air intake. Attracted by the airflow from the air outlet 1214, the air in the air intake space 122 will flow downstream of the plane containing the air outlet 1214. Because an air intake channel 123 connecting to the air intake space 122 is formed between two adjacent air outlet units 121, the air in the air intake space 122 will be blown downstream of the plane containing the air outlet 1214 via the air intake channel 123, mixing with the air blown out of the air outlet 1214 and being delivered into the room together. Because the active air supply vent 21 is closer to the air intake space 122 than the air outlet 1214, when the air pressure in the air intake space 122 is low, the air blown out from the active air supply vent 21 will be drawn into the air intake space 122 and blown into the room through the air intake channel 123. Even if the air velocity at the air outlet 1214 of the air supply device 1 is low, the air volume supplied through the active air supply vent 21 can provide sufficient air volume. Thus, it is possible to achieve uniform air supply while improving air supply efficiency, and to combine high air supply comfort with low noise performance. Furthermore, since the active air outlet 21 is closer to the air intake space 122 than the center surface of the air outlet unit 121, when air is blown out from the active air outlet 21 and flows into the air intake space 122, most of the air can be prevented from interfering with the vertical side wall 1212 of the air outlet unit 121, thereby suppressing the generation of noise and turbulence.Furthermore, the active air outlet 21 is positioned facing the air outlet unit 121, allowing the air blown out from the active air outlet 21 to enter the air intake space 122 more smoothly, thereby suppressing noise and turbulence. Additionally, in this embodiment, the first active air supply device 3 includes an air handling unit. Air heated by the air handling unit is blown out through the first active air outlet 31, with most of it first entering the air intake space 122 before mixing with the air blown out from the air outlet 1214 and being delivered into the room. Thus, the heated warm air is evenly mixed with the room temperature air before being blown into the room, preventing hot air from blowing directly onto the user and causing discomfort. Simultaneously, it allows the indoor air to heat up more quickly and evenly, improving heating efficiency. Similarly, when air is cooled by the air handling unit, it is blown out through the first active air outlet 31, with most of it first entering the air intake space 122 before mixing with the air blown out from the air outlet 1214 and being delivered into the room. Therefore, the cooled air will mix evenly with the room temperature air before being blown into the room. This prevents the cold air from blowing directly on the user and causing discomfort. At the same time, it also allows the indoor air to cool down more quickly and evenly, improving cooling efficiency. In addition, in this embodiment, the second active air supply device 4 includes an outdoor active air inlet, which can deliver fresh outdoor air into the room. When the fresh outdoor air is blown into the room through the second active air supply inlet 41, it will first enter the air intake space 122, and then mix with the air at the air outlet 1214 before being blown into the room. This avoids uneven air supply, thereby avoiding uneven indoor temperature. After the air is blown out of the air outlet 1214, it will flow towards the return air outlet 13. Similarly, a portion of the indoor air will flow towards the active return air outlet 22 under the action of the active air supply unit. In this embodiment, since the return air vent 13 and the active return air vent 22 are located on the same side of the air outlet 12 as described in the specification 11 HK 30135228 A, the airflow flowing from the air outlet 12 to the return air vent 13 and the airflow flowing to the active return air vent 22 are in similar or even the same direction, thereby suppressing the cross-flow of the two airflows and the generation of turbulence. The second embodiment will be described below. The parts of the air conditioning system structure in the second embodiment that are the same as those in the first embodiment will not be repeated. As shown in FIG7, in this embodiment, the return air vent 13 and the active return air vent 22 are located on opposite sides of the air outlet 12. "Provided on opposite sides of the air outlet 12" means that, along the arrangement direction of the plurality of air outlet units 121, one of the return air vent 13 and the active return air vent 22 is located on the first side of the air outlet 12, and the other is located on the second side of the air outlet 12.Specifically, in this embodiment, the return air vent 13 is located on the side of the air outlet 12 away from the active air supply vent 21, and the active return air vent 22 is located on the side of the air outlet 12 close to the active air supply vent 21. For example, the active air supply vent 21 and the active return air vent 22 are located on the first side of the air outlet 12, and the return air vent 13 is located on the second side of the air outlet 12. Since the return air vent 13 and the active return air vent 22 are located on opposite sides of the air outlet 12, the air blown out from the air outlet 12 will be drawn back into the air supply device 1 through the return air vent 13. A portion of the indoor air will re-enter the active air supply device 2 through the active return air vent 22. The two airflows are in opposite directions, thereby suppressing the generation of turbulence caused by the cross-flow of the two airflows. Third Embodiment The third embodiment of this disclosure will be described below, wherein the structures of the third embodiment that are the same as those of the first and second embodiments will not be repeated. As shown in Figures 8 and 9, in this embodiment, the return air vent 13 and the active return air vent 22 are located on opposite sides of the air outlet 12. For example, the active supply air vent 21 and the active return air vent 22 are located on the first side of the air outlet 12, and the return air vent 13 is located on the second side of the air outlet 12. The return air vent 13 and the air outlet 1214 form a first connecting line 5, which is a vertical line from the center point of the return air vent 13 to the air outlet 1214. The active return air vent 22 and the active supply air vent 21 form a second connecting line 6, which is a vertical line from the center point of the active return air vent 22 to the active supply air vent 21. The first connecting line 5 and the second connecting line 6 are parallel to each other. As shown in Figure 8, the active air supply vent 21 and the active air return vent 22 are located on the first side of the air outlet 12 and are close to the first end of the air outlet 12; the return vent 13 is located on the second side of the air outlet 12 and is close to the second end of the air outlet 12. Thus, the first connecting line 5 and the second connecting line 6 are parallel to each other and are spaced a certain distance apart. As shown in Figure 9, the active air supply vent 21 and the active air return vent 22 are located on the first side of the air outlet 12, and the return vent 13 is located on the second side of the air outlet 12. The active air supply vent 21, the active air return vent 22, and the return vent 13 are all located close to the same area along the length of the air outlet 12. Thus, the first connecting line 5 and the second connecting line 6 are parallel to each other and are collinear. Therefore, when the air blown out from the air outlet 1214 flows towards the return air outlet 13, and the indoor air flows towards the active return air outlet 22, the cross-flow of airflow that would otherwise cause turbulence can be suppressed. The embodiments of this disclosure have now been described in detail with reference to the accompanying drawings.Based on the above description, those skilled in the art should have a clear understanding of this disclosure. It should be noted that implementations not illustrated or described in the accompanying drawings or the main text of the specification are forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the various elements above are not limited to the specific structures and shapes mentioned in the embodiments; those skilled in the art can easily modify or substitute them. The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of this disclosure. It should be understood that the above descriptions are merely specific embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure. 13 HK 30135228 A Claim 1. An air conditioning system, comprising: an air supply device for supplying air to a room; the air supply device including an air outlet for blowing air into the room; the air outlet including two or more air outlet units, at least one of the air outlet units being provided with an air outlet; characterized in that: the air outlet further includes: an air intake space, disposed upstream of the plane where the air outlet is located, and communicating with the indoor space; an air intake channel, disposed between two adjacent air outlet units, and communicating with the air intake space; the air conditioning system further includes an active air supply device for supplying air to the room; the active air supply device including: an active air intake for blowing air into the room; the active air intake being closer to the air intake space than the air outlet. 2. The air conditioning system according to claim 1, characterized in that, in the direction from the air outlet toward the air intake space, the active air intake is closer to the air intake space than the center plane of the air outlet unit. 3. The air conditioning system according to any one of claims 1 to 2, characterized in that the active air supply outlet is located on one side of the air outlet unit and faces the air outlet unit. 4. The air conditioning system according to claim 3, characterized in that the air supply device further includes: a return air inlet for allowing indoor air to enter; the active air supply device further includes: an active return air inlet for allowing indoor air to enter. 5. The air conditioning system according to claim 4, characterized in that the return air inlet and the active return air inlet are located on the same side of the air outlet. 6. The air conditioning system according to claim 4, characterized in that the return air inlet and the active return air inlet, as described in claim 1 HK 30135228 A, are located on opposite sides of the air outlet.7. The air conditioning system according to any one of claims 4 to 6, characterized in that the return air inlet and the air outlet form a first connection line, and the active return air inlet and the active supply air inlet form a second connection line, wherein the first connection line and the second connection line are parallel to each other. 8. The air conditioning system according to claim 7, characterized in that the active supply air device further includes an air handling unit for processing indoor air entering through the active return air inlet. 9. The air conditioning system according to claim 7, characterized in that the active supply air device further includes an outdoor air inlet for introducing fresh outdoor air into the room. 10. The air conditioning system according to any one of claims 1 to 2, 4 to 6, and 8 to 9, characterized in that the air outlet is located at the bottom of the air outlet unit. 2 HK 30135228 A Instruction Manual Appendix Figure 1 1 HK 30135228 A Instruction Manual Appendix Figure 2 Figure 3 2 HK 30135228 A Instruction Manual Appendix Figure 4 Figure 5 3 HK 30135228 A Instruction Manual Appendix Figure 6 Figure 7 4 HK 30135228 A Instruction Manual Appendix Figure 8 5 HK 30135228 A Instruction Manual Appendix Figure 9 6 HK 30135228 A.