A combined air conditioning unit

Abstract

The present invention relates to the technical field of fresh air systems, and in particular to a combined air conditioning unit. Its technical solution includes: a positioning frame, two air inlet assemblies for conducting airflow are fixedly installed on one side of the positioning frame, a heating assembly for heating the airflow is fixedly installed on the upper layer of the positioning frame, a first fan for airflow circulation with the heating assembly is installed on the upper layer of the positioning frame, a surface cooling assembly for preliminary cooling of the airflow is fixedly installed on the lower layer of the positioning frame, and a dehumidification assembly for drying the airflow is fixedly installed on the lower layer of the positioning frame. In the process of the airflow passing through the first two groups, the present invention contacts the water flow formed by the nozzle rack. When the filter screen on the side facing the first fan and the second fan moves to the area only affected by the heater, the humidity on its surface is low, and then when the airflow is transmitted there, it can be better dried by the heater, thereby improving the temperature control efficiency of the airflow.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air systems, and in particular to a combined air conditioning unit. Background Art

[0002] Packaged air conditioning units are centralized air handling equipment widely used in commercial buildings, industrial plants, hospitals, data centers, and other locations. Their modular design allows users to flexibly combine functional sections (such as filtration, heating, cooling, humidification, and air supply) to meet varying temperature, humidity, cleanliness, and air volume requirements. With increasing demand for energy conservation and environmental protection, packaged air conditioning units are developing towards high efficiency, low noise, and intelligent features.

[0003] However, during the process of heating or cooling the airflow, the existing combined air conditioning units will have low heat exchange efficiency due to uneven airflow distribution in the surface cooler / heater, which in turn leads to low fan / heat exchange efficiency and high energy consumption.

[0004] The patent document with the publication number CN217817129U that has been published includes a combined chassis, and a first air inlet and a second air inlet are installed at one end of the double-layer combined chassis. A filter is provided in the combined chassis near the first air inlet and the second air inlet, which uses the filter to connect the air inlet of the hot air group and the air inlet of the cold air group. A filter plate is provided inside the filter to filter the air entering from the two air inlets, so that the hot and cold air generated by the combined air conditioner remains clean. A conduit is connected to the filter plate, and a nozzle is provided on the conduit. Water is supplied through a water pipe, and the filter plate is cleaned by the nozzle. Sewage enters the two sewage pipes through the two opened sewage outlets and is discharged outward.

[0005] When the above device is in use, the filter plate is fixed by being mounted on the filter housing, and water is sprayed and cleaned using the conduit on the filter plate. During this process, the conduit only sprays water mist onto the filter screen to cover the dust, but the water mist sticks to the filter screen, and a large amount of dust will still remain on it, resulting in a low filtering effect.

[0006] Therefore, the present application proposes a combined air-conditioning unit. Summary of the Invention

[0007] The purpose of the present invention is to propose a combined air conditioning unit to address the problem in the background technology that water mist sticks to the filter screen and a large amount of dust residue remains on it, resulting in low filtering effect.

[0008] The technical solution of the present invention is as follows: a combined air-conditioning unit includes a positioning frame, two air inlet assemblies for conducting airflow are fixedly installed on one side of the positioning frame, a heating assembly for heating the airflow is fixedly installed on the upper layer of the positioning frame, a first fan in airflow communication with the heating assembly is installed on the upper layer of the positioning frame, a surface cooling assembly for preliminary cooling of the airflow is fixedly installed on the lower layer of the positioning frame, a dehumidifying assembly for drying the airflow is fixedly installed on the lower layer of the positioning frame, a condensing assembly for cooling the airflow is fixedly installed on the lower layer of the positioning frame, and a second fan in airflow communication with the condensing assembly is installed on the lower layer of the positioning frame;

[0009] A filter assembly for filtering airflow through a corresponding positioning assembly is installed inside the positioning rack.

[0010] Optionally, the surface cooling component includes a second baffle, the dehumidification component includes a third baffle, the heating component includes a first baffle, and the condensing component includes a fourth baffle, and the second baffle, the third baffle and the fourth baffle are arranged in an airflow flow state.

[0011] Optionally, the filter assembly includes an auxiliary filter frame, an upper layer of the auxiliary filter frame is provided with an upwind outlet, and a lower layer of the auxiliary filter frame is provided with a downwind outlet.

[0012] Optionally, the corresponding positioning assembly includes a protective positioning frame rotatably mounted inside the auxiliary filter frame, a motor is fixedly mounted on the top of the protective positioning frame, a diamond positioning frame is fixedly mounted on the output end of the motor, and two groups of positioning slides are hinged on both sides of the diamond positioning frame.

[0013] Optionally, one group of the positioning slides is hinged with a third push plate on the side away from the diamond positioning frame, and another group of the positioning slides is hinged with a second push plate on the side away from the diamond positioning frame. The third push plate and the second push plate are slidably installed inside the protective positioning frame through the sliding groove of the protective positioning frame.

[0014] Optionally, two groups of positioning slides are fixedly installed on both sides of the third pushing plate, the positioning slide passes through one side of the second pushing plate and is fixedly installed with the first pushing plate, the first pushing plate is slidably installed inside the protective positioning frame through the sliding groove of the protective positioning frame, and multiple groups of engaging positioning blocks are fixedly installed on both sides of the third pushing plate, the second pushing plate and the first pushing plate, one group of the engaging positioning blocks has a conductive tube fixedly installed inside, and the positioning slide is slidably installed inside the conductive tube.

[0015] Optionally, buffer plates are fixedly installed on both sides of the first pushing plate, the second pushing plate and the third pushing plate, a positioning block is threadedly connected to one side of the engaging positioning block, a sliding cavity is opened inside the protective positioning frame, two groups of transmission card plates are fixedly installed on both sides of the positioning block, and the transmission card plates are slidably installed inside the sliding cavity.

[0016] Optionally, the filter assembly further comprises a storage cavity frame fixedly mounted with the bottom of the positioning block, a spring frame fixedly mounted inside the storage cavity frame, a filter mounting frame fixedly mounted on the bottom of the spring frame, and a filter fixedly mounted inside the filter mounting frame.

[0017] Optionally, a dry dust collection box is fixedly installed inside the auxiliary filter frame, a dry filter screen is inserted into the dry dust collection box, a plurality of nozzle racks arranged in an inclined state are fixedly installed inside the auxiliary filter frame, and a plurality of heaters are fixedly installed on the inner wall of the auxiliary filter frame.

[0018] Optionally, an arc-shaped guide hole rack with multiple arc-shaped holes is fixedly installed on the bottom of the filter mounting frame, a two-way step rack is fixedly installed on the inner wall of the dry dust collection box, and multiple groups of conduction balls adapted to the arc-shaped holes are fixedly installed on the top of the two-way step rack. An inclined conduction plate is slidably installed on the surface of the dry dust collection box through a sliding hole, and the inclined conduction plate is sleeved on the outside of the filter mounting frame.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. As the airflow passes through the first two groups, it comes into contact with the water flow formed by the nozzle rack. When the filter screen on the side facing the first and second fans moves to the area only affected by the heater, the humidity on its surface is lower. As the airflow reaches this area, it can be better dried by the heater, thereby improving the temperature control efficiency of the airflow.

[0021] 2. Whenever it moves between a set of nozzle racks, the infrared sensor components between the nozzle racks react with the trigger components on the surface of the filter mounting rack, thereby controlling the water pipes connected to the nozzle racks to release water through the nozzle racks to clean the filter. During the sliding process, the filter can give the water droplets adhering to the surface a left and right thrust, thereby improving the sewage collection efficiency and cooperating with the drying efficiency of the heater;

[0022] 3. When the filter mounting frame moves upward, since the side of the two-way step frame is curved and the bottom of the curved hole of the curved guide hole frame is also curved, the curved surface at the bottom of the curved guide hole frame contacts the curved surface of the side of the two-way step frame and returns to its original position. With the cooperation of the corresponding adjustment components, the filter mounting frame can perform reciprocating left and right swings and up and down vibrations, thereby improving the cleaning effect of dust and sewage;

[0023] 4. When the customer needs to clean, he only needs to pull out the dry filter from one side of the dry dust collection box for cleaning. Compared with the traditional technology of disassembling and cleaning each filter, its installation is simpler and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of the combined air-conditioning unit of the present invention is given;

[0025] Figure 2 It is a structural schematic diagram of the filter assembly of the present invention;

[0026] Figure 3 for Figure 2 Enlarged view of the middle A area;

[0027] Figure 4 This is a schematic structural diagram of the protective positioning frame of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of the middle B area;

[0029] Figure 6 This is a schematic structural diagram of the positioning sliding column of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the arc-shaped guide hole frame of the present invention;

[0031] Figure 8 for Figure 7 Enlarged view of the middle C area;

[0032] Figure 9 It is a structural schematic diagram of the storage cavity frame of the present invention;

[0033] Figure 10 for Figure 9 Magnified view of the middle D area.

[0034] Reference numerals: 1, positioning rack; 2, air inlet assembly; 3, heating assembly; 301, first baffle; 4, first fan; 5, surface cooling assembly; 501, second baffle; 6, dehumidification assembly; 601, third baffle; 7, condensation assembly; 701, fourth baffle; 8, second fan; 9, filter assembly; 901, auxiliary filter rack; 902, upwind outlet; 903, downwind outlet; 904, dry dust collection box; 905, filter screen mounting bracket; 906, filter screen; 907, inclined conduction plate; 908, arc-shaped guide hole rack; 909, two-way step frame; 910, conduction ball; 911, heater; 912, nozzle frame; 913, spring frame; 914, storage cavity frame; 915, drying filter; 10, corresponding adjustment components; 1001, protective positioning frame; 1002, diamond positioning frame; 1003, first push plate; 1004, second push plate; 1005, third push plate; 1006, buffer plate; 1007, positioning slide; 1008, engaging positioning block; 1009, conduction tube; 1010, positioning block; 1011, transmission card plate. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 As shown, a combined air-conditioning unit proposed by the present invention includes a positioning frame 1, two air inlet assemblies 2 for conducting airflow are fixedly installed on one side of the positioning frame 1, a heating assembly 3 for heating the airflow is fixedly installed on the upper layer of the positioning frame 1, a first fan 4 in airflow communication with the heating assembly 3 is installed on the upper layer of the positioning frame 1, a surface cooling assembly 5 for preliminary cooling of the airflow is fixedly installed on the lower layer of the positioning frame 1, a dehumidification assembly 6 for drying the airflow is fixedly installed on the lower layer of the positioning frame 1, a condensation assembly 7 for cooling the airflow is fixedly installed on the lower layer of the positioning frame 1, and a second fan 8 in airflow communication with the condensation assembly 7 is installed on the lower layer of the positioning frame 1;

[0037] A filter assembly 9 for filtering airflow is installed inside the positioning rack 1 through a corresponding positioning assembly 10. The heating assembly 3, the first fan 4, the surface cooling assembly 5, the dehumidification assembly 6, and the condensing assembly 7 are all core components of a combined air conditioner in the prior art. The filter assembly 9 and the corresponding positioning assembly 10 filter the two layers of the positioning rack 1 respectively. The controller is used to control the start-up of the first fan 4 and the second fan 8 respectively, thereby extracting air from the positioning rack 1.

[0038] The surface cooling component 5 includes a second baffle 501, the dehumidification component 6 includes a third baffle 601, the heating component 3 includes a first baffle 301, and the condensing component 7 includes a fourth baffle 701. The second baffle 501, the third baffle 601 and the fourth baffle 701 are arranged in an airflow circulation state. The airflow in the upper layer is transmitted from the filter component 9 to the first baffle 301 for heating, and then exhausted from the first fan 4, while the airflow in the lower layer is transmitted from the filter component 9 to the surface cooling component 5, the dehumidification component 6 and the condensing component 7 respectively, and finally extracted from the second fan 8. The second baffle 501, the first baffle 301, the third baffle 601 and the fourth baffle 701 are concave. Compared with the traditional DC plate, the concave shape can extend the transmission time of the airflow, so that the time for heating or cooling in the heating component 3, the surface cooling component 5, the dehumidification component 6 and the condensing component 7 is prolonged, so that the airflow reaches the specified temperature and reduces energy loss.

[0039] like Figure 2-Figure 6As shown, the filter assembly 9 includes an auxiliary filter frame 901, an upper air outlet 902 is provided on the upper layer of the auxiliary filter frame 901, and a lower air outlet 903 is provided on the lower layer of the auxiliary filter frame 901. The auxiliary filter frame 901 separates the lower air outlet 903 and the upper air outlet 902 of the upper and lower layers of the filter assembly 9 to avoid air flow cross-flow, and the air flow conduction direction and size are positioned according to the opening size of the auxiliary filter frame 901 and the upper air outlet 902. The corresponding adjustment component 10 includes a protective positioning frame 1001 rotatably mounted inside the auxiliary filter frame 901, a motor is fixedly mounted on the top of the protective positioning frame 1001, and a diamond positioning frame 1002 is fixedly mounted on the output end of the motor. Two sets of positioning slide columns 100 are hinged on both sides of the diamond positioning frame 1002. 7. A set of positioning slides 1007 is hingedly connected to a third push plate 1005 on one side away from the diamond positioning frame 1002, and another set of positioning slides 1007 is hingedly connected to a second push plate 1004 on one side away from the diamond positioning frame 1002. The third push plate 1005 and the second push plate 1004 are slidably installed inside the protective positioning frame 1001 through the sliding groove of the protective positioning frame 1001. Two sets of positioning slides 1007 are fixedly installed on both sides of the third push plate 1005. The positioning slide 1007 passes through one side of the second push plate 1004 and is fixedly installed with the first push plate 1003. The first push plate 1003 is slidably installed inside the protective positioning frame 1001 through the sliding groove of the protective positioning frame 1001. A plurality of groups of engaging positioning blocks 1008 are fixedly installed on both sides of the pushing plate 1004 and the first pushing plate 1003, wherein a conduction tube 1009 is fixedly installed inside one group of the engaging positioning blocks 1008, and a positioning slide 1007 is slidably installed inside the conduction tube 1009. Buffer plates 1006 are fixedly installed on both sides of the first pushing plate 1003, the second pushing plate 1004 and the third pushing plate 1005, and a positioning block 1010 is threadedly connected to one side of the engaging positioning block 1008. A dry dust collection box 904 is fixedly installed inside the auxiliary filter frame 901, and a dry filter screen 915 is inserted into the interior of the dry dust collection box 904. A plurality of groups of nozzle racks 912 arranged in an inclined state are fixedly installed inside the auxiliary filter frame 901. , a plurality of heaters 911 are fixedly installed on the inner wall of the auxiliary filter frame 901, and each group of nozzle frames 912 has two, and the two nozzle frames 912 are arranged in a symmetrical state, and the heater 911 dries the inside of the filter assembly 9, and the filter assembly 9 also includes a storage cavity frame 914 fixedly installed with the bottom of the positioning block 1010, and a spring frame 913 is fixedly installed inside the storage cavity frame 914, and a filter mounting frame 905 is fixedly installed at the bottom of the spring frame 913, and a filter screen 906 is fixedly installed inside the filter screen mounting frame 905. When the air flow is transmitted from the upwind port 902 or the downwind port 903, the motor drives the diamond positioning frame 1002 to rotate, and the diamond positioning frame 1002 rotates along the inner wall of the protective positioning frame 1001,During the rotation of the diamond positioning frame 1002, the positioning slides 1007 hinged on both sides are respectively deflected outward or inward, and the other end of the two positioning slides 1007 away from the diamond positioning frame 1002 drives the third push plate 1005 and the second push plate 1004 to move synchronously, causing the distance between the third push plate 1005 and the second push plate 1004 to increase or decrease. At the same time, the third push plate 1005 drives the positioning slides 1007 to slide along the conductive tube 1009, causing the positioning slides 1007 to drive the third push plate 1005 and the first push plate 1003 to slide synchronously through the two sets of engaging positioning blocks 1008 on both sides. The spacing between the first and second pushing plates 1003 and 1004 remains unchanged, while the spacing between the first pushing plate 1003 and the second pushing plate 1004 changes. The engaging positioning block 1008 drives the filter mounting frame 905 to slide through the storage cavity frame 914. During the sliding process of the filter 906, whenever it moves between a group of nozzle racks 912, the infrared sensing components between the group of nozzle racks 912 and the trigger components on the surface of the filter mounting frame 905 are inductively sensed, thereby controlling the water pipes connected to the nozzle racks 912 to release water through the nozzle racks 912 to clean the filter 906. During the sliding process, the filter 906 can give the water droplets adhering to the surface a left and right thrust, thereby improving the collection efficiency of the sewage and cooperating with the drying efficiency of the heater 911.

[0040] Since the three groups 306 can improve the purification efficiency of the airflow, when the airflow is conducted to the 306 on the side close to the first fan 4 and the second fan 8, the airflow is relatively clean after being filtered by the first two groups 306. Therefore, the dust conducted to this 306 is less. At the same time, the nozzle rack 912 is not set on the side of the 306 facing the first fan 4 or the second fan 8. When the 306 here and the 306 in the middle are at the farthest position, the 306 here is only affected by the heater 911. Since the airflow will come into contact with the water flow formed by the nozzle rack 912 in the process of passing through the first two groups 306, although The purpose of water mist dust reduction is achieved, but the airflow will be relatively humid, and the water mist absorbs the heat emitted by the heater 911. Then the heater 911 cannot completely dry the airflow or needs to consume more energy to dry it, which in turn affects the consumption of the subsequent heating component 3, the surface cooling component 5, the dehumidification component 6 and the condensation component 7. When the filter 906 on the side facing the first fan 4 and the second fan 8 is moved to the area only affected by the heater 911, the humidity on its surface is lower, and then when the airflow is transmitted to this area, it can be better dried by the heater 911, thereby improving the temperature control efficiency of the airflow;

[0041] Further explanation: two groups of transmission card plates 1011 are fixedly installed on both sides of the positioning card block 1010, and the transmission card plates 1011 are slidably installed inside the sliding cavity. When the positioning card block 1010 drives the filter mounting frame 905 to slide through the storage cavity frame 914, since the transmission card plates 1011 and the positioning card block 1010 are fixedly installed, the transmission card plates 1011 slide synchronously, and the transmission card plates 1011 are always located in the sliding cavity. During the sliding process, the transmission card plates 1011 always block the gap between the protective positioning frame 1001 and the filter component 9, and the corresponding positioning component 10 is always in a relatively sealed state. The airflow and water flow cannot enter the interior of the corresponding positioning component 10, causing interference and damage to the electronic components inside it, thereby extending the service life of the equipment.

[0042] like Figure 7-10 As shown, an arc-shaped guide hole frame 908 with multiple arc-shaped holes is fixedly installed on the bottom of the filter mounting frame 905, a two-way ladder frame 909 is fixedly installed on the inner wall of the dry dust collecting box 904, and multiple groups of conductive balls 910 adapted to the arc-shaped holes are fixedly installed on the top of the two-way ladder frame 909. An inclined conductive plate 907 is slidably installed on the surface of the dry dust collecting box 904 through a sliding hole. The inclined conductive plate 907 is sleeved on the outer side of the filter mounting frame 905. When the filter mounting frame 905 moves along the two-way ladder frame 909, due to the multiple groups of conductive balls 910 The guide ball 910 is located at the two-way stepped frame 909, with the highest height in the middle and gradually decreasing on both sides. When the arc-shaped holes of the arc-shaped guide hole frame 908 move toward both sides along the central conductive ball 910, the top of the filter mounting frame 905 slides downward from the storage cavity frame 914 under the limit of the spring frame 913. Under the elastic force of the spring frame 913 and gravity, the filter 906 vibrates, thereby fully shaking off water droplets on the surface, thereby improving drying efficiency, fully shaking off dust on the surface, making the airflow fresher, and improving the customer experience.

[0043] Similarly, when the filter mounting frame 905 moves from bottom to top, since the side of the two-way step frame 909 is curved and the bottom of the curved hole of the curved guide hole frame 908 is also curved, the curved surface at the bottom of the curved guide hole frame 908 contacts the curved surface on the side of the two-way step frame 909 and returns to its original position. With the cooperation of the corresponding adjustment component 10, the filter mounting frame 905 can perform reciprocating left and right swings and up and down vibrations, thereby improving the cleaning effect of dust and sewage.

[0044] Furthermore, the two ends of the two sets of inclined conductive plates 907 are respectively connected to the side surfaces of the filter mounting frame 905. At the same time, since the inclined conductive plates 907 are connected to the outer side of the filter mounting frame 905, the inclined conductive plates 907 move left and right together with the filter mounting frame 905, and the inclined conductive plates 907 are positioned on the dry dust collecting box 904 by the sliding holes, so that when the filter mounting frame 905 moves up and down, the inclined conductive plates 907 remain stationary, so that the two-way ladder frame 909 and the filter 906 are kept in an isolated state, avoiding water droplets from entering the two-way ladder frame 909 and causing pollution. At the same time, due to the guidance of the upwind inlet 902 and the downwind inlet 903, the air flow is located between the inclined conductive plates 907 and the dry dust collecting box The dust collecting box 904 is transported above the inclined conductive plate 907 without interfering with the inclined conductive plate 907 and the dry dust collecting box 904. The side wall of the inclined conductive plate 907 is a triangular block, which forms a relatively sealed space with the side wall of the dry dust collecting box 904, thereby further preventing dirt from entering the two-way ladder rack 909. The surface of the inclined conductive plate 907 is an inclined surface, so the fallen water droplets are easily conducted to the dry filter screen 915 through the inclined surface. As the inclined conductive plate 907 moves left and right following the 305, the inclined conductive plate 907 pushes the dirt mixed with water droplets and dust attached to the filter screen of the dry filter screen 915 to prevent its accumulation and the inability of the dirt to circulate normally, thereby improving the dirt collection efficiency.

[0045] The surface of the drying filter 915 can dry the material, improve the drying effect, and facilitate later recycling. When the customer needs to clean it, he only needs to pull out the drying filter 915 from one side of the dry dust collection box 904 for cleaning. Compared with the traditional technology of disassembling and cleaning each filter, its installation is relatively simple and improves work efficiency.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art may make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A combined air conditioning unit, comprising a positioning frame (1), characterized in that: Two air inlet assemblies (2) for conducting airflow are fixedly mounted on one side of the positioning rack (1); a heating assembly (3) for heating the airflow is fixedly mounted on the upper layer of the positioning rack (1); a first fan (4) for airflow circulation with the heating assembly (3) is mounted on the upper layer of the positioning rack (1); a surface cooling assembly (5) for preliminary airflow cooling is fixedly mounted on the lower layer of the positioning rack (1); a dehumidifying assembly (6) for airflow drying is fixedly mounted on the lower layer of the positioning rack (1); a condensing assembly (7) for airflow cooling is fixedly mounted on the lower layer of the positioning rack (1); and a second fan (8) for airflow circulation with the condensing assembly (7) is mounted on the lower layer of the positioning rack (1); A filter assembly (9) for filtering airflow through a corresponding positioning assembly (10) is installed inside the positioning frame (1); The surface cooling component (5) includes a second baffle (501), the dehumidification component (6) includes a third baffle (601), the heating component (3) includes a first baffle (301), and the condensing component (7) includes a fourth baffle (701), and the second baffle (501), the third baffle (601), and the fourth baffle (701) are arranged in an airflow flow state; The filter assembly (9) comprises an auxiliary filter frame (901), an upper layer of the auxiliary filter frame (901) is provided with an upwind vent (902), and a lower layer of the auxiliary filter frame (901) is provided with a downwind vent (903); the filter assembly (9) further comprises a storage cavity frame (914), a spring frame (913) is fixedly mounted inside the storage cavity frame (914), a filter screen mounting frame (905) is fixedly mounted at the bottom of the spring frame (913), and a filter screen (906) is fixedly mounted inside the filter screen mounting frame (905); A dry dust collection box (904) is fixedly installed inside the auxiliary filter frame (901), a dry filter screen (915) is plugged into the interior of the dry dust collection box (904), multiple groups of nozzle frames (912) arranged in an inclined state are fixedly installed inside the auxiliary filter frame (901), and multiple heaters (911) are fixedly installed on the inner wall of the auxiliary filter frame (901); An arc-shaped guide hole frame (908) with a plurality of arc-shaped holes is fixedly mounted on the bottom of the filter mounting frame (905); a bidirectional step frame (909) is fixedly mounted on the inner wall of the dry dust collecting box (904); a plurality of groups of conductive balls (910) adapted to the arc-shaped holes are fixedly mounted on the top of the bidirectional step frame (909); an inclined conductive plate (907) is slidably mounted on the surface of the dry dust collecting box (904) through a sliding hole; the inclined conductive plate (907) is sleeved on the outer side of the filter mounting frame (905); The corresponding positioning assembly (10) comprises a protective positioning frame (1001) rotatably mounted inside the auxiliary filter frame (901), a motor being fixedly mounted on the top of the protective positioning frame (1001), a diamond-shaped positioning frame (1002) being fixedly mounted on the output end of the motor, and two sets of positioning slides (1007) being hinged on both sides of the diamond-shaped positioning frame (1002); A third pushing plate (1005) is hingedly connected to one side of the positioning slides (1007) away from the diamond-shaped positioning frame (1002), and a second pushing plate (1004) is hingedly connected to the other side of the positioning slides (1007) away from the diamond-shaped positioning frame (1002). The third pushing plate (1005) and the second pushing plate (1004) are slidably installed inside the protective positioning frame (1001) through the sliding groove of the protective positioning frame (1001); Two groups of positioning slides (1007) are fixedly installed on both sides of the third pushing plate (1005), and the positioning slide (1007) passes through one side of the second pushing plate (1004) and is fixedly installed with the first pushing plate (1003). The first pushing plate (1003) is slidably installed inside the protective positioning frame (1001) through the sliding groove of the protective positioning frame (1001). Multiple groups of engaging positioning blocks (1008) are fixedly installed on both sides of the third pushing plate (1005), the second pushing plate (1004) and the first pushing plate (1003), and a conductive tube (1009) is fixedly installed inside one group of the engaging positioning blocks (1008), and the positioning slide (1007) is slidably installed inside the conductive tube (1009).

2. A combined air conditioning unit according to claim 1, characterized in that: Buffer plates (1006) are fixedly installed on both sides of the first pushing plate (1003), the second pushing plate (1004) and the third pushing plate (1005); a positioning block (1010) is threadedly connected to one side of the engaging positioning block (1008); a sliding cavity is provided inside the protective positioning frame (1001); two groups of transmission card plates (1011) are fixedly installed on both sides of the positioning block (1010); the transmission card plates (1011) are slidably installed inside the sliding cavity; and the storage cavity frame (914) is fixedly installed at the bottom of the positioning block (1010).

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