Air conditioning module, air conditioning system and air conditioning control method

Abstract

The application discloses an air conditioner module, an air conditioner system and an air conditioner control method. The air conditioner module comprises a supply air duct, a return air duct, a baffle and an air conditioner box. The supply air duct has a supply air outlet. The return air duct comprises a return air inlet and a dust outlet which are arranged adjacently and penetrate through the thickness direction of the duct wall. The baffle is rotatably connected to the inner wall of the return air duct and located between the return air inlet and the dust outlet. The air conditioner box is connected to the supply air duct and the return air duct at both ends. In the cooling mode, the baffle covers the dust outlet, air enters the air conditioner box through the return air inlet and is discharged to the controlled environment through the supply air outlet. In the dust removal mode, the baffle covers the return air inlet, air reversely enters the return air duct through the air conditioner box and is discharged through the dust outlet to clean the dust in the return air duct. The air conditioner module can purify the air in the controlled environment and clean the dust in the return air duct to reduce odor. The return air duct can be cleaned by only changing the working mode of the air conditioner module, the structure is simple and the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of air conditioning duct cleaning, and in particular to an air conditioning module, an air conditioning system, and an air conditioning control method. Background Technology

[0002] The factory workshop has a high dust content. The central air conditioning return air duct, installed high up in the workshop, draws air from the workshop back to the combined air conditioning unit. After filtration and heat / humidification treatment, the air is then delivered back into the workshop via the supply fan and duct. Because the return air contains a high amount of dust, it settles inside the return air duct due to reduced buoyancy from the hot air or electrostatic friction, causing dust to accumulate on the bottom surface of the duct cavity. This leads to bacterial growth, environmental pollution, and unpleasant odors.

[0003] It should be noted that the statements in this background section only provide background information relevant to this application and do not necessarily constitute prior art. Summary of the Invention

[0004] This application provides an air conditioning module, an air conditioning system, and an air conditioning control method for cleaning dust from air conditioning ducts.

[0005] This application provides an air conditioning module, including a supply air duct, a return air duct, a baffle, and an air conditioning unit. The supply air duct has an air outlet communicating with a controlled environment. The return air duct includes a return air inlet and a dust exhaust outlet extending through the thickness of the duct wall. The dust exhaust outlet is disposed adjacent to the return air inlet. The baffle is rotatably connected to the inner wall of the return air duct and located between the return air inlet and the dust exhaust outlet. The air conditioning unit is connected to the supply air duct and the return air duct at both ends, respectively. The air conditioning module has a cooling mode and a dust removal mode. In the cooling mode, the baffle rotates towards the dust exhaust outlet to cover it, air enters the air conditioning unit through the return air inlet, and the cooled air is discharged to the controlled environment through the supply air inlet. In the dust removal mode, the baffle rotates towards the return air inlet to cover it, air enters the return air duct in the opposite direction through the air conditioning unit and is discharged through the dust exhaust outlet to clean the dust inside the return air duct.

[0006] In some embodiments, during dust removal mode, the baffle rotates toward the return air inlet side under the action of reverse airflow.

[0007] In some embodiments, the air conditioning module further includes a spring. One end of the baffle is rotatably connected to the inner wall of the return air duct, and the other end of the baffle is connected to the inner wall of the return air duct via the spring. In cooling mode, the spring force causes the baffle to cover the dust exhaust port.

[0008] In some embodiments, the baffle includes a protrusion. In cooling mode, under the action of a spring, the baffle covers the dust outlet and the protrusion is recessed into the dust outlet. In dust removal mode, a reverse airflow causes the baffle to overcome the spring force and rotate to the other side to cover the return air inlet, with the protrusion positioned on the outside of the return air inlet.

[0009] In some embodiments, the baffle includes a cover and a frame. The frame is disposed around the cover. The frame is made of a rigid material. The cover is made of a flexible material.

[0010] In some embodiments, the return air duct includes a plurality of return air inlets and a plurality of dust exhaust inlets. The plurality of return air inlets and the plurality of dust exhaust inlets are alternately distributed in the axial direction of the return air duct. The air conditioning module includes a plurality of baffles. The plurality of baffles are correspondingly disposed between the plurality of return air inlets and the plurality of dust exhaust inlets.

[0011] In some embodiments, the air conditioning module further includes a filter. The filter is disposed on the return air vent.

[0012] A second aspect of this application provides an air conditioning system, including at least three air conditioning modules as described above, a return air parallel passage, and a supply air parallel passage. The return air parallel passage is used to connect the return air ducts of the at least three air conditioning modules. The supply air parallel passage is used to connect the supply air ducts of the at least three air conditioning modules. Both the return air parallel passage and the supply air parallel passage can be switched on and off.

[0013] In some embodiments, the air conditioning system further includes a main connection pipe. The main connection pipe connects the return air parallel path and the supply air parallel path. The main connection pipe can be switched on and off.

[0014] In some embodiments, the air conditioning system further includes a plurality of on / off valves for controlling the on / off of ducts. The on / off valves include a first on / off valve disposed on the return air parallel passage, a second on / off valve disposed on the supply air parallel passage, and a third on / off valve disposed on the connecting main pipe.

[0015] In some embodiments, the air conditioning module further includes a pressure relief port. The pressure relief port is disposed on the supply air duct and / or return air duct. The pressure relief port is configured to open when the air pressure in the duct is greater than a set value, and to close when the air pressure in the duct is less than a set value.

[0016] In some embodiments, a plurality of pressure detection devices are also included. The pressure detection devices are respectively installed on the supply air ducts and / or return air ducts of the plurality of air conditioning modules to detect the air pressure in the ducts.

[0017] In some embodiments, the air conditioning system further includes a controller and multiple on / off valves. The multiple on / off valves are respectively located on the return air parallel passage and the supply air parallel passage. The controller is signal-connected to a pressure detection device and is used to control the opening and closing of the multiple on / off valves, the operating modes of the multiple air conditioning modules, and the opening and closing of the multiple pressure relief ports.

[0018] A third aspect of this application provides an air conditioning control method based on the above-mentioned air conditioning system, comprising the following steps: setting one of at least three air conditioning modules to a cooling mode; and setting one of the at least three air conditioning modules to a dust removal mode after a set time.

[0019] In some embodiments, the air conditioning system further includes a main connection pipe. The main connection pipe connects the return air parallel passage and the supply air parallel passage. The main connection pipe can be switched on and off. Putting one of at least three air conditioning modules into dust removal mode after a set time includes connecting the main connection pipe and the supply air parallel passage, and putting the other air conditioning modules of the at least three air conditioning modules into cooling mode so that air from multiple controlled environments is combined and flows into the return air duct corresponding to one air conditioning module for dust removal through a dust exhaust port.

[0020] Based on the technical solution provided in this application, the air conditioning module includes a supply air duct, a return air duct, a baffle, and an air conditioning unit. The supply air duct has an air outlet communicating with the controlled environment. The return air duct includes a return air inlet and a dust exhaust outlet extending through the thickness of the duct wall. The dust exhaust outlet is arranged adjacent to the return air inlet. The baffle is rotatably connected to the inner wall of the return air duct and is located between the return air inlet and the dust exhaust outlet. The air conditioning unit is connected to the supply air duct and the return air duct at both ends, respectively. The air conditioning module has a cooling mode and a dust removal mode. In the cooling mode, the baffle rotates towards the dust exhaust outlet to cover it, and air enters the air conditioning unit through the return air inlet. The cooled air is then discharged to the controlled environment through the supply air inlet. In the dust removal mode, the baffle rotates towards the return air inlet to cover it, and air enters the return air duct in the opposite direction through the air conditioning unit and is discharged through the dust exhaust outlet to clean the dust inside the return air duct. The air conditioning module provided in this application can purify the air in a controlled environment, regulate the air temperature and humidity, and clean the return air duct by changing the working mode of the air conditioning module to remove dust adsorbed in the return air duct and reduce odors in the airflow blown out of the supply air duct. Moreover, it uses reverse airflow for cleaning, eliminating the need for additional cleaning devices, simplifying the structure and reducing costs.

[0021] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of an air conditioning module according to an embodiment of this application.

[0024] Figure 2 This is a top view of the baffle of the air conditioning module according to an embodiment of this application.

[0025] Figure 3 For along Figure 2 The sectional view of section AA in the image.

[0026] Figure 4This is a front view of the baffle of the air conditioning module according to an embodiment of this application.

[0027] Figure 5 This is a schematic diagram showing the baffle of the air conditioning module in an embodiment of this application connected to the inner wall of the return air duct via a spring.

[0028] Figure 6 This is a schematic diagram of the return air duct of the air conditioning module in an embodiment of this application when the air conditioning unit is in cooling mode.

[0029] Figure 7 For along Figure 6 The sectional view of section BB in the image.

[0030] Figure 8 This is a schematic diagram of the baffle of the air conditioning module in an embodiment of this application when the air conditioning unit is in cooling mode.

[0031] Figure 9 This application embodiment shows a schematic diagram of the return air duct of the air conditioning module when the air conditioning unit is in dust removal mode.

[0032] Figure 10 For along Figure 9 A sectional view of section C in the figure.

[0033] Figure 11 This is a schematic diagram of the baffle of the air conditioning module in an embodiment of this application when the air conditioning unit is in dust removal mode.

[0034] Figure 12 This is a schematic diagram of the dust exhaust port of the air conditioning module in an embodiment of this application.

[0035] Figure 13 This is a schematic diagram of an air conditioning system according to an embodiment of this application.

[0036] In the picture:

[0037] 1. Air conditioning module; 11. Supply air duct; 12. Return air duct; 121. Return air outlet; 122. Dust exhaust outlet; 13. Spring; 14. Baffle; 141. Cover plate; 142. Frame; 15. Air conditioning unit; 16. Filter screen; 17. Pressure relief port; 2. Return air parallel passage; 3. Supply air parallel passage; 4. Connecting main pipe; 5. On / off valve; 51. First on / off valve; 52. Second on / off valve; 53. Third on / off valve; 54. Fourth on / off valve; 55. Fifth on / off valve. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0041] refer to Figure 1 and Figures 6-11 This application provides an air conditioning module 1, including an air supply duct 11, a return air duct 12, a baffle 14, and an air conditioning unit 15. The air supply duct 11 has an air outlet communicating with a controlled environment. (Reference) Figure 6The return air duct 12 includes a return air inlet 121 and a dust exhaust inlet 122 extending through the duct wall in the thickness direction. The dust exhaust inlet 122 is arranged adjacent to the return air inlet 121. A baffle 14 is rotatably connected to the inner wall of the return air duct 12 and located between the return air inlet 121 and the dust exhaust inlet 122. The air conditioning unit 15 is connected at both ends to the supply air duct 11 and the return air duct 12, respectively. The air conditioning module 1 has a cooling mode and a dust removal mode. In the cooling mode, the baffle 14 rotates towards the dust exhaust inlet 122 to cover the dust exhaust inlet 122, and air enters the air conditioning unit 15 through the return air inlet 121. The cooled air is then discharged to the controlled environment through the supply air inlet. In the dust removal mode, the baffle 14 rotates towards the return air inlet 121 to cover the return air inlet 121, and air enters the return air duct 12 to be cleaned through the air conditioning unit 15 in the opposite direction and is discharged through the dust exhaust inlet 122 to clean the dust inside the return air duct 12.

[0042] The air conditioning module 1 provided in this application can purify the air in a controlled environment, regulate the air temperature and humidity, and can clean the return air duct 12 by changing the working mode of the air conditioning module 1 to remove the dust adsorbed in the return air duct 12 and reduce the odor in the airflow blown out by the supply air duct 11. Moreover, it uses reverse airflow for cleaning, which eliminates the need for additional cleaning devices, making the structure simple and reducing costs.

[0043] like Figure 11 As shown, in some embodiments, the air conditioning module 1 further includes a filter 16. The filter 16 is disposed on the return air vent 121. Specifically, the filter 16 can prevent dust in the controlled environment from being drawn into the return air duct 12. The filter 16 is removable for periodic cleaning.

[0044] Specifically, the fan of the air conditioning unit 15 can rotate in both directions and can process the airflow to change its humidity and temperature. In cooling mode, the fan of the air conditioning unit 15 rotates in the forward direction, creating negative pressure in the return air duct 12. Air from the controlled environment enters the return air duct through the return air inlet 121, is processed by the air conditioning unit 15, and is then blown into the controlled environment through the air outlet. In dust removal mode, the fan of the air conditioning unit 15 rotates in the reverse direction, creating negative pressure in the air supply duct 11. Air enters the air supply duct 11 through the air outlet, then flows in the reverse direction and is blown out through the dust exhaust port 122 in the return air duct 12, thereby removing dust and debris adsorbed on the inner wall of the return air duct 12 and reducing odor. Moreover, in dust removal mode, the baffle 14 automatically covers the return air inlet 121 to prevent dust from passing through the return air inlet 121 and contaminating the filter 16 on the return air inlet 121.

[0045] like Figure 11As shown, in some embodiments, in dust removal mode, the baffle 14 rotates towards the return air vent 121 under the action of the reverse airflow. In dust removal mode, the fan of the air conditioning unit 15 is reversed, and the baffle 14 automatically covers the return air vent 121 under the action of the airflow, eliminating the need for manual control of the baffle 14's rotation and simplifying operation. The baffle 14 is made of corrosion-resistant lightweight material and has a certain structural strength and rigidity to facilitate frequent rotation and increase its service life.

[0046] refer to Figure 5 In some embodiments, the air conditioning module 1 further includes a spring 13. One end of the baffle 14 is rotatably connected to the inner wall of the return air duct 12, and the other end of the baffle 14 is connected to the inner wall of the return air duct 12 via the spring 13. In cooling mode, the elastic force of the spring 13 causes the baffle 14 to cover the dust outlet 122.

[0047] To increase the sealing of the baffle 14 to the return air inlet 121 and the dust outlet 122, and to make it easier for airflow to exert force on the baffle 14, in some embodiments, the baffle 14 includes a protrusion. In cooling mode, under the elastic force of the spring 13, the baffle 14 covers the dust outlet 122 and the protrusion is recessed into the dust outlet 122. In dust removal mode, the reverse airflow causes the baffle 14 to overcome the elastic force of the spring 13 and rotate to the other side to cover the return air inlet 121, with the protrusion covering the outside of the return air inlet. See details. Figure 4 Because the baffle 14 has a protruding portion, its front view shows one side as convex and the other side as concave. In other words, a portion of the baffle 14 is curved. When the air conditioning unit 15 rotates clockwise, as... Figure 8 As shown, the protruding part of the baffle 14 is embedded in the dust discharge port 122, and the forward-flowing airflow exerts a force on the concave surface of the baffle 14. The downward component of this force, combined with the elastic force of the spring 13, causes the baffle 14 to press further against the dust discharge port 122, increasing the baffle 14's blocking effect on the dust discharge port 122. When the air conditioning unit 15 reverses, the reverse airflow first acts on the convex surface of the baffle 14 that is not embedded in the dust discharge port 122 to overcome the force of the spring 13, causing the baffle 14 to rotate to the position shown in the diagram. Figure 11 As shown in the diagram, the reverse airflow continues to exert force on the convex surface of the baffle 14 to keep the return air vent 121 tightly covered. When the air conditioning unit 15 stops reversing, the baffle 14 returns to its original position under the action of the spring 13. Figure 8 As shown, the entire process is automated and effectively covers the return air vent 121 and the dust exhaust vent 122, preventing the return air vent 121 from being contaminated by dust from the duct. It also prevents the negative pressure within the return air duct 12 from drawing in residual dust from the dust exhaust vent 122 when the air conditioning module 1 is in cooling mode. Furthermore, the well-sealed dust exhaust vent 122 improves the airtightness of the return air duct 12, thereby enhancing the air intake capacity of the return air vent 121 and preventing airflow from entering the return air duct 12 from the dust exhaust vent 122.

[0048] refer to Figure 2 and Figure 3 In some embodiments, the baffle 14 includes a cover 141 and a frame 142. The frame 142 is disposed around the cover 141. The frame 142 is made of a rigid material. The cover 141 is made of a flexible material. Specifically, using a rigid material (e.g., aluminum alloy) for the frame 142 can improve the overall structural strength of the baffle 14 and increase its service life. Using a flexible material (e.g., rubber) for the cover 141 can ensure close contact with the return air vent 121 and the dust exhaust vent 122, improving its covering performance.

[0049] In some embodiments, the baffle 14 further includes a sealing gasket. The sealing gasket is disposed on the frame 142 to further increase the covering performance of the baffle 14.

[0050] refer to Figure 6 and Figure 7 In some embodiments, the return air duct 12 includes a plurality of return air inlets 121 and a plurality of dust exhaust inlets 122. The plurality of return air inlets 121 and the plurality of dust exhaust inlets 122 are alternately distributed in the axial direction of the return air duct 12. The air conditioning module 1 includes a plurality of baffles 14. The plurality of baffles 14 are correspondingly disposed between the plurality of return air inlets 121 and the plurality of dust exhaust inlets 122. Setting the number of return air inlets 121 and dust exhaust inlets 122 to a plurality can improve air supply efficiency and dust removal effect.

[0051] In some embodiments, the air conditioning module 1 further includes an anemometer. The anemometer is used to detect the airflow speed within the return air duct 12. Further, the air conditioning module 1 also includes a controller, which is signal-connected to the anemometer and the air conditioning unit 15. The controller controls the rotational speed of the air conditioning unit 15 based on the airflow speed data detected by the anemometer to ensure that the airflow speed within the return air duct 12 is sufficient to overcome the force of the spring 13 and drive the baffle 14 to rotate. The controller can also control the rotational speed of the air conditioning unit 15 to keep the airflow speed below a set value to prevent damage to the duct walls.

[0052] refer to Figure 13 This application also provides an air conditioning system, including at least three air conditioning modules 1 as described above, a return air parallel passage 2, and a supply air parallel passage 3. The return air parallel passage 2 is used to connect the return air ducts 12 of the three air conditioning modules 1. The supply air parallel passage 3 is used to connect the supply air ducts 11 of the three air conditioning modules 1. Both the return air parallel passage 2 and the supply air parallel passage 3 can be switched on and off. Through this air conditioning system, the air in multiple controlled environments can be purified, and the temperature and humidity of the air in multiple controlled environments can be regulated. Furthermore, the multiple air conditioning modules 1 can draw in air from their respective controlled environments and then combine it through the return air parallel passage 2 to blow it into the dust exhaust port 122 of a certain air conditioning module 1, so as to achieve a larger air volume in a single return air duct 12 and improve the dust removal effect of a certain return air duct 12.

[0053] Continue to refer to Figure 13 In some embodiments, the air conditioning system further includes a connecting main pipe 4. The connecting main pipe 4 connects the return air parallel passage 2 and the supply air parallel passage 3. The connecting main pipe 4 can be switched on and off. Specifically, by setting the connecting main pipe 4, when multiple air conditioning modules supply air to the return air duct 12 of a certain air conditioning module together, the merged airflow reaches the return air duct 12 of the certain air conditioning module 1 through the connecting main pipe 4, increasing the purging air velocity in the return air duct 12 and improving the purging effect.

[0054] Still referencing Figure 13 In some embodiments, the air conditioning system further includes multiple on / off valves 5 for controlling the opening and closing of ducts. The on / off valves 5 include a first on / off valve 51 disposed on the return air parallel passage 2, a second on / off valve 52 disposed on the supply air parallel passage 3, and a third on / off valve 53 disposed on the connecting main pipe 4. By controlling the opening and closing of multiple on / off valves 5, airflow from multiple air conditioning modules is directed to a specific air conditioning module.

[0055] In some embodiments, the on / off valve 5 further includes a fourth on / off valve 54 disposed on the return air duct 12. In other embodiments, the on / off valve 5 further includes a fifth on / off valve 55 disposed on the supply air duct 11. The fourth on / off valve 54 and the fifth on / off valve 55 further enhance the controllability of the air conditioning system of this application.

[0056] To reduce the risk of excessive air pressure in the supply air duct 11 or return air duct 12 of one of the air conditioning modules causing duct wall rupture when multiple air conditioning modules are blowing air simultaneously, in some embodiments, the air conditioning module 1 further includes a pressure relief port 17. The pressure relief port 17 is located on the supply air duct 11 and / or return air duct 12. The pressure relief port 17 is configured to open when the air pressure in the duct is greater than a set value and close when the air pressure in the duct is less than the set value.

[0057] In some embodiments, the air conditioning system further includes multiple pressure detection devices. These devices are respectively installed on the supply air ducts 11 and / or return air ducts 12 of the multiple air conditioning modules 1 to detect the air pressure within the ducts. The pressure detection devices can be differential pressure gauges, which are used to detect the pressure difference between the inside and outside of the duct. Differential pressure gauges allow operators to monitor the internal air pressure of the duct in real time, thus enhancing the safety and reliability of the entire air conditioning system.

[0058] In some embodiments, the air conditioning system further includes a controller. The controller is signal-connected to a pressure detection device and is used to control the opening and closing of multiple on / off valves 5, the operating modes of multiple air conditioning modules 1, and the opening and closing of multiple pressure relief ports 17. Specifically, the pressure relief port 17 can be an electrically controlled valve, the valve core opening of which is controlled by a signal from the controller. When the pressure in the return air duct 12 is too high, the controller sends a signal to increase the valve core opening of the electrically controlled valve to relieve pressure. The controller makes the air conditioning system more automated and intelligent, while also ensuring safety.

[0059] In other embodiments, reference is made to... Figure 6 The pressure relief port 17 is located at the end of the return air duct 12 on the side away from the air conditioning unit 15, and extends through the duct wall in the thickness direction. A cover corresponding in size and position to the pressure relief port 17 is provided on the outside of the return air duct 12. The cover is rotatably connected to the outer wall of the return air duct 12 via a hinge. When the air pressure inside the return air duct 12 is too high, the cover is blown open to release pressure; when the air pressure inside the return air duct 12 decreases, the cover closes the pressure relief port again under gravity.

[0060] In some other embodiments, the pressure relief port 17 is also located at the end of the air supply duct 11 on the side away from the air conditioning unit 15. This can improve the safety of the air supply duct 11.

[0061] This application also provides an air conditioning control method based on the above-mentioned air conditioning system, including the following steps:

[0062] S1, causing at least one of the three air conditioning modules 1 to be in cooling mode; and

[0063] S2, after a set time, puts one of the at least three air conditioning modules 1 into dust removal mode.

[0064] This control method enables the air conditioning system provided in this application to automatically purify the air in multiple controlled environments and automatically switch the air conditioning module 1 to dust removal mode after a set time, reducing manual intervention and making it more intelligent and automated.

[0065] In some embodiments, putting one of the at least three air conditioning modules 1 into dust removal mode after a set time includes connecting the main pipe 4 and the parallel air supply passage 3, putting one of the at least three air conditioning modules 1 into dust removal mode, and putting the other air conditioning modules 1 into cooling mode so that air from multiple controlled environments is combined and flows into the return air duct 12 corresponding to one air conditioning module 1 for dust removal through the dust exhaust port 122. Multiple air conditioning modules simultaneously blow air into the return air duct 12 of one air conditioning module to enhance the dust removal effect.

[0066] In some embodiments, the air conditioning control method of the air conditioning system further includes dust removal and exhaust of specific return air ducts during periods when cooling is not required, such as when the workshop is shut down.

[0067] Figure 13 A schematic diagram shows three air conditioning modules (1', 1”, and 1”') connected in parallel via a return air parallel passage 2, a supply air parallel passage 3, and a connecting main pipe 4. The air conditioning control method of the air conditioning system provided in this application will be described in detail below with reference to this diagram. For example, when all three air conditioning modules are in cooling mode to cool the air in three controlled environments, the fourth on / off valve 54 on the return air duct 12 and the fifth on / off valve 55 on the supply air duct 11 of the three air conditioning modules are both in a connected state, while the first on / off valve 51, the second on / off valve 52, and the third on / off valve 53 are all in a disconnected state. After a period of time, it is desired to clean the dust from the return air duct 12 of air conditioning module 1'. First, shut down the air conditioning unit 15 of air conditioning module 1', and put the other two air conditioning modules into cooling mode. Then, switch the fifth on / off valve 55 on the supply air duct 11 of the three air conditioning modules and the first on / off valve 51 on the return air parallel passage 2 to the open state, and switch the second on / off valve 52 and the third on / off valve 53 to the connected state. At this time, air conditioning modules 1" and 1"' will draw in air from their respective controlled environments through their respective return air inlets 121, then through their respective air conditioning units 15 and merge through the supply air parallel passage 3. Then, the airflow enters the return air duct 12 of air conditioning module 1' through the connecting main pipe 4 and is cleaned through the dust outlet 122. When it is necessary to clean the dust from other air conditioning modules, the above process can be referred to, and it can be achieved by adjusting multiple on / off valves 5 and multiple air conditioning modules' operating modes, which will not be elaborated here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. An air conditioning module, characterized by, The air conditioner module comprises: an air supply duct (11) having an air supply port communicating with a controlled environment; an air return duct (12) comprising an air return port (121) and a dust discharge port (122) penetrating through the thickness direction of the duct wall, the dust discharge port (122) being arranged adjacent to the air return port (121); a baffle (14) rotatably connected to the inner wall of the air return duct (12) and located between the air return port (121) and the dust discharge port (122); and an air conditioner box (15) connected to the air supply duct (11) and the air return duct (12) at two ends, the air conditioner module (1) having a cooling mode and a dust removal mode, in the cooling mode, the baffle (14) is rotated to the side of the dust discharge port (122) to cover the dust discharge port (122), air enters the air conditioner box (15) through the air return port (121), and the air treated by cooling is discharged to the controlled environment through the air supply port; in the dust removal mode, the baffle (14) is rotated to the side of the air return port (121) to cover the air return port (121), air reversely enters the air return duct (12) through the air conditioner box (15), and is discharged through the dust discharge port (122) to clean the dust in the air return duct (12), wherein the air conditioner module further comprises a spring (13), one end of the baffle (14) is rotatably connected to the inner wall of the air return duct (12), and the other end of the baffle (14) is connected to the inner wall of the air return duct (12) through the spring (13), in the cooling mode, the spring force of the spring (13) makes the baffle (14) cover the dust discharge port (122), and in the dust removal mode, the reverse air flow makes the baffle (14) overcome the spring force of the spring (13) and rotate to the other side to cover the air return port (121).

2. The air conditioning module of claim 1, wherein, In the dust removal mode, the baffle (14) is rotated to the side of the air return port (121) under the action of the reverse air flow.

3. The air conditioning module of claim 1, wherein, The baffle (14) comprises a protruding portion, in the cooling mode, under the action of the spring force of the spring (13), the baffle (14) covers the dust discharge port (122) and the protruding portion is sunk into the dust discharge port (122), and the protruding portion is covered outside the air return port (121).

4. The air conditioning module of claim 1, wherein, The baffle (14) comprises a cover plate (141) and a frame (142), the frame (142) is arranged around the cover plate (141), the frame (142) is made of hard material, and the cover plate (141) is made of soft material.

5. The air conditioning module of claim 1, wherein, The air return duct (12) comprises a plurality of air return ports (121) and a plurality of dust discharge ports (122), the plurality of air return ports (121) and the plurality of dust discharge ports (122) are alternately distributed in the axial direction of the air return duct (12), the air conditioner module (1) comprises a plurality of baffles (14), and the plurality of baffles (14) are correspondingly arranged between the plurality of air return ports (121) and the plurality of dust discharge ports (122).

6. The air conditioning module of claim 1, wherein, Further comprising a filter screen (16) arranged on the return air outlet (121).

7. An air conditioning system characterized by, Comprise: at least three air conditioning modules (1) as claimed in any one of claims 1 to 6; a return air parallel passage (2) for connecting return air ducts (12) of the at least three air conditioning modules; and a supply air parallel passage (3) for connecting supply air ducts (11) of the at least three air conditioning modules, the return air parallel passage (2) and the supply air parallel passage (3) are both arranged to be switchable.

8. The air conditioning system of claim 7, wherein, The air conditioning system further comprises a communication main pipe (4) connecting the return air parallel passage (2) and the supply air parallel passage (3), the communication main pipe (4) is arranged to be switchable.

9. The air conditioning system of claim 8, wherein, The air conditioning system further comprises a plurality of on-off valves (5) for controlling the switching of the ducts, the on-off valves (5) comprise a first on-off valve (51) arranged on the return air parallel passage (2), a second on-off valve (52) arranged on the supply air parallel passage (3), and a third on-off valve (53) arranged on the communication main pipe (4).

10. The air conditioning system of claim 7, wherein, The air conditioning module (1) further comprises a pressure relief port (17) arranged on the supply air duct (11) and / or the return air duct (12), the pressure relief port (17) is configured to open when the air pressure in the duct is greater than a set value, and close when the air pressure in the duct is less than a set value.

11. The air conditioning system of claim 10, wherein, Further comprising a plurality of pressure detection devices arranged on the supply air ducts (11) and / or return air ducts (12) of the plurality of air conditioning modules (1) to detect the air pressure in the ducts.

12. The air conditioning system of claim 11, wherein, Further comprising a controller and a plurality of on-off valves (5) arranged on the return air parallel passage (2) and the supply air parallel passage (3), respectively, the controller is in signal connection with the pressure detection devices and is used to control the switching of the plurality of on-off valves, the working mode of the plurality of air conditioning modules (1), and the opening and closing of the plurality of pressure relief ports (17).

13. An air conditioning control method based on the air conditioning system of claim 7, characterized by, Comprise the steps of: causing one of the at least three air conditioning modules (1) to be in the refrigeration mode; and causing one of the at least three air conditioning modules (1) to be in the dust removal mode after a set time. 14.The air conditioner control method of claim 13, wherein The air conditioning system further comprises a communication main pipe (4) connecting the return air parallel passage (2) and the supply air parallel passage (3), the communication main pipe (4) is arranged to be switchable, and the causing one of the at least three air conditioning modules (1) to be in the dust removal mode after a set time comprises causing the communication main pipe (4) and the supply air parallel passage (3) to be in communication, causing the one of the at least three air conditioning modules (1) to be in the dust removal mode, and causing the other air conditioning modules (1) of the at least three air conditioning modules (1) to be in the refrigeration mode to cause the air of the plurality of controlled environments to flow into the return air duct (12) corresponding to the one air conditioning module (1) to be removed through the dust removal port (122).

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