Combined air conditioner

Abstract

The utility model discloses a combined air conditioner, which relates to the technical field of air conditioning and comprises a shell, a primary filtering device, a fan, a heat exchanger and an air purification device, and the primary filtering device, the fan, the heat exchanger and the air purification device are arranged in the shell. The air purification device is arranged in the shell and is formed by combining a plurality of purification modules, so that the overall size of the air purification device is matched with the size of an inner cavity of the shell; the purification module comprises a purification module shell, and an ultraviolet light source assembly, a photocatalyst assembly and a negative ion generator which are sequentially arranged in the purification module shell in the air flowing direction. According to the combined air conditioner, the air purification device is formed by combining the multiple purification modules, modular design is adopted, and the combined air conditioner can adapt to combined air conditioner shells of different specifications; meanwhile, the air purification device can effectively reduce the content of bacteria in the air by arranging a photocatalyst for catalysis, so that the negative ion generation efficiency is improved, and the purification effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air treatment, in particular to a combined air conditioner. Background Art

[0002] As modern building environmental control systems have increasingly higher requirements for air quality, modular air conditioning systems have been widely used in commercial buildings and industrial facilities due to their modular design, high efficiency and energy saving, and multifunctional integration. In order to improve human comfort and health in air-conditioned environments, more and more modular air conditioning units are equipped with air purification devices, such as photocatalyst technology and negative ion generators.

[0003] In actual application, different air-conditioning projects require different sizes of modular air-conditioning boxes, and are affected by factors such as space layout, air duct design, maintenance and repair, so they need to be flexible to adapt to various installation conditions. Existing photocatalyst negative ion generators lack versatility and flexibility, so they are difficult to be directly applied to modular air-conditioning boxes of various sizes and structures. This results in the inability to easily integrate air purification functions into various modular air-conditioning units in air-conditioning projects with strong customization requirements and complex diversified scenarios, which increases design costs, installation difficulties, and the complexity of later maintenance.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In response to the problems pointed out in the background technology, the combined air conditioner of the present application provides a modular and adjustable air purification device that can adapt to air-conditioning boxes of different specifications.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] In some embodiments of the present application, a combined air conditioner is provided, comprising:

[0008] A housing having an air inlet and an air outlet;

[0009] A primary filter device is arranged in the housing near the air inlet;

[0010] A fan, disposed in the housing, for driving air to flow from the air inlet to the air outlet;

[0011] A heat exchanger is disposed in the housing and is located between the air inlet and the air outlet along the air flow direction;

[0012] Also included is an air purification device, which is arranged in the shell and is composed of a plurality of purification modules so that the overall size of the air purification device is adapted to the inner cavity size of the shell;

[0013] The purification module comprises a purification module shell, an ultraviolet light source component, a photocatalyst component and a negative ion generator which are sequentially arranged in the purification module shell along the air flow direction.

[0014] The air purification device is modular and its size can be adjusted to suit combined air-conditioning boxes of different specifications.

[0015] In some embodiments of the present application, the purification module housing is surrounded by a bottom plate, side plates connected to both sides of the bottom plate, and an electric control box connected to the top of the two side plates to form a rectangular frame structure, and the ultraviolet light source assembly, photocatalyst assembly and negative ion generator are fixed in the rectangular frame structure. The electric control box is integrated with the purification module housing, and the structure is simple.

[0016] In some embodiments of the present application, the purification module further includes a filter assembly disposed on the air inlet side of the ultraviolet light source assembly, the filter assembly including a filter frame and at least one layer of filter mounted on the filter frame; the filter frame is embedded in the rectangular frame structure. The filter assembly can absorb dust and further improve the efficiency of negative ion generation.

[0017] In some embodiments of the present application, the front side of the bottom plate near the air inlet side has an upwardly bent bottom plate folded edge; the bottom frame of the filter frame is arranged close to the inner side of the bottom plate folded edge; the bottom of the electric control box near the air inlet side is provided with a step, and the top frame of the filter frame is embedded in the step; the side of the electric control box near the air inlet side is provided with a locking piece, and the locking piece is configured to lock the filter frame to the purification module housing or to separate the filter frame from the purification module housing. The filter assembly is designed as a detachable structure for easy cleaning and replacement.

[0018] In some embodiments of the present application, the ultraviolet light source assembly includes a lamp frame and an ultraviolet lamp mounted on the lamp frame; the lamp frame is embedded in the rectangular frame structure.

[0019] In some embodiments of the present application, the bottom plate is provided with a first positioning portion for positioning the lamp frame; the ultraviolet lamp is fixed on the top frame of the lamp frame, and the upper surface of the top frame of the lamp frame is provided with an electrical connector electrically connected to the ultraviolet lamp; the bottom surface of the electric control box is provided with an elastic conductive member, and the elastic conductive member is pressed onto the electrical connector. The top of the ultraviolet light source assembly is positioned with the bottom plate by the bottom positioning structure, and then fixed by pressing the electric control box.

[0020] In some embodiments of the present application, the photocatalyst assembly includes a catalytic mesh frame and a photocatalytic mesh installed on the catalytic mesh frame, and the catalytic mesh frame is embedded in the rectangular frame structure.

[0021] In some embodiments of the present application, the bottom plate is provided with a second positioning portion for positioning the catalytic mesh frame; the bottom surface of the electric control box is provided with an elastic clamping position, and the elastic clamping position is pressed on the catalytic mesh frame. The top of the photocatalyst component is positioned with the bottom plate through the bottom positioning structure, and then fixed by the electric control box.

[0022] In some embodiments of the present application, the two sides of the side panel have outwardly folded side panel edges, and a first screw hole is provided on the side panel edge. The left and right adjacent purification modules are fixedly connected by screwing screws into the first screw holes on the side panel edge.

[0023] In some embodiments of the present application, a nut is embedded in the electric control box, a second screw hole is provided in the bottom plate, and the upper and lower adjacent purification modules are fixedly connected by screws screwed into the embedded nut and the second screw hole. The adjacent purification modules are connected by screws to facilitate assembly and disassembly.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] In the combined air conditioner in the above embodiment, the air purification device is composed of a plurality of purification modules and adopts a modular design, which can adapt to combined air-conditioning casings of different specifications; at the same time, the air purification device can effectively reduce the bacterial content in the air by setting a photocatalyst, thereby improving the negative ion generation efficiency and improving the purification effect.

[0026] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the structure of a combined air conditioner according to some embodiments is shown;

[0029] Figure 2 A schematic structural diagram of an air purification device in a combined air conditioner according to some embodiments is shown;

[0030] Figure 3 A schematic diagram of the structure of a purification module in a combined air conditioner according to some embodiments is shown;

[0031] Figure 4 An exploded view of a purification module in a combined air conditioner according to some embodiments is shown;

[0032] Figure 5 A schematic diagram of the structure of a filter assembly in a combined air conditioner according to some embodiments is shown;

[0033] Figure 6 A schematic diagram of the structure of an ultraviolet light source assembly in a combined air conditioner according to some embodiments is shown;

[0034] Figure 7 A schematic diagram of the structure of a photocatalyst assembly in a combined air conditioner according to some embodiments is shown;

[0035] Figure 8 A schematic diagram of the structure of an electric control box and a negative ion generator in a combined air conditioner according to some embodiments is shown;

[0036] Fig. 9 Shows Figure 3 The enlarged image at point I in the middle;

[0037] Fig.10 A schematic diagram of the structure of a bottom plate in a combined air conditioner according to some embodiments is shown;

[0038] Description of reference numerals:

[0039] 1- housing;

[0040] 2-primary filter device;

[0041] 3- fan;

[0042] 4-Heat exchanger;

[0043] 5- Air purification device;

[0044] 100-Purification module;

[0045] 110-purification module housing;

[0046] 111-bottom plate; 1111-bottom plate folding edge; 1112-first limiting piece; 1113-second limiting piece;

[0047] 112-side panel; 1121-side panel folding edge;

[0048] 113-electric control box; 1131-step; 1132-elastic conductive member; 1133-elastic clamping position; 1134-bracket; 1135-locking member;

[0049] 120-filter assembly; 121-filter frame; 122-filter;

[0050] 130-ultraviolet light source assembly; 131-lamp frame; 132-electrical connector; 133-lamp holder; 134-ultraviolet lamp;

[0051] 140-photocatalyst assembly; 141-catalytic net frame; 142-photocatalytic net;

[0052] 150-Discharge terminal. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0055] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0059] like Figure 1-Figure 10 As shown, some embodiments of the present application provide a combined air conditioner.

[0060] See also Figure 1 , which is a schematic diagram of the internal structure of a combined air conditioner.

[0061] The combined air conditioner comprises a housing 1 , a primary filter device 2 arranged in the housing 1 , a fan 3 , a heat exchanger 4 and an air purification device 5 .

[0062] The housing 1 has an air inlet and an air outlet; the indoor air can circulate between the combined air conditioner and the indoor space through the air inlet and the air outlet.

[0063] The primary filter device 2 is arranged in the housing 1 near the air inlet; the primary filter device 2 is used for preliminarily filtering the air entering the combined air conditioner.

[0064] The fan 3 is disposed in the housing 1 and is used to drive the air flow from the air inlet to the air outlet.

[0065] The fan 3 can be a centrifugal fan or a cross-flow fan according to factors such as specific air conditioning needs, noise control requirements, and installation space conditions.

[0066] The heat exchanger 4 is arranged in the housing 1 and is located between the air inlet and the air outlet along the air flow direction.

[0067] The heat exchanger 4 is used to perform heat exchange to heat or cool the air.

[0068] The air purification device 5 is disposed in the housing 1 , and can be disposed on the air inlet side or the air outlet side of the heat exchanger 4 , or on the air inlet side or the air outlet side of the fan 3 .

[0069] See also Figure 2 , which is a structural schematic diagram of an air purification device.

[0070] The air purification device 5 is composed of a plurality of purification modules 100 , so that the overall size of the air purification device 5 is adapted to the inner cavity size of the housing 1 .

[0071] Specifically, Figure 3-Figure 4 As shown, the purification module 100 includes a purification module housing 110, an ultraviolet light source assembly 130, a photocatalyst assembly 140 and a negative ion generator which are sequentially arranged in the purification module housing 110 along the air flow direction.

[0072] The housing 1 of the combined air conditioner has a rectangular cross-section along a direction perpendicular to the air flow direction.

[0073] To adapt to the internal shape of the shell 1, the outer contour of the purification module shell 110 is also rectangular. Multiple purification modules 100 can be arranged and stacked in sequence, so that the overall size of the air purification device 5 is compatible with the inner cavity size of the shell 1, and can adapt to combined air-conditioning shells of different specifications.

[0074] In the purification module 100, the negative ion generator is used to ionize the air to generate negative ions.

[0075] Medical research shows that negatively charged particles in the air increase the oxygen content in the blood, which is beneficial to the transportation, absorption and utilization of blood oxygen. It has the effects of promoting human metabolism, improving human immunity, enhancing human muscle strength, and regulating the balance of body functions.

[0076] Since dust and bacteria in the air are easily adsorbed by negative charges, in order to improve the efficiency of negative ion generation and enable more negative ions to be delivered into the room through the air outlet, in some embodiments of the present application, an ultraviolet light source assembly 130 and a photocatalyst assembly 140 are provided on the air inlet side of the negative ion reflector.

[0077] The ultraviolet light source assembly 130 is used to generate ultraviolet rays, which can activate the surface of the photocatalyst of the photocatalyst assembly 140, and can effectively reduce the bacteria content in the air, thereby improving the negative ion generation efficiency.

[0078] In some embodiments of the present application, a filter assembly 120 is disposed on the air inlet side of the ultraviolet light source assembly 130 .

[0079] The filter assembly 120 can filter the air entering the purification module 100, and can reduce the dust content in the air, thereby further improving the negative ion generation efficiency.

[0080] In the above-mentioned combined air conditioner, the air purification device 5 is composed of a plurality of purification modules 100, and adopts a modular design, which can adapt to combined air conditioner casings 1 of different specifications; at the same time, the air purification device 5 can effectively reduce the bacterial content in the air by setting a photocatalyst catalysis, and can also further improve the negative ion generation efficiency and improve the purification effect.

[0081] In some embodiments of the present application, the purification module housing 110 is surrounded by a bottom plate 111 , side plates 112 connected to both sides of the bottom plate 111 , and an electric control box 113 connected to the top of the two side plates 112 to form a rectangular frame structure.

[0082] The bottom plate 111 has bottom plate folded edges 1111 bent upward on the front and rear sides.

[0083] The front and rear sides of the side panel have side panel folding edges 1121 bent outwards.

[0084] The bottom end of the side plate folded edge 1121 is fixedly connected to the bottom plate folded edge 1111 by screws.

[0085] The electric control box 113 can be fixed between the two side panels 112 by welding or screw connection.

[0086] The electric control box 113 is provided with a power supply and an electric control system for supplying power to the ultraviolet light source assembly 130 and the negative ion generator and performing electrical control.

[0087] A switch may be provided on the electric control box 113 to control the operation of the purification module 100 .

[0088] An operating indicator light may be provided on the electric control box 113 to display the operating status of the purification module 100 .

[0089] The filter assembly 120, the ultraviolet light source assembly 130, the photocatalyst assembly 140 and the negative ion generator are fixed in the rectangular frame structure.

[0090] In some embodiments of the present application, see Figure 5 The filter assembly 120 includes a filter frame 121 and at least one layer of filter 122 installed on the filter frame 121 .

[0091] The filter frame 121 is a rectangular frame, which is embedded in the rectangular frame structure.

[0092] The filter screen 122 may be designed to be pleated to increase the filtering area and improve the filtering effect, or multiple layers of the filter screen 122 may be provided to improve the filtering effect.

[0093] In order to facilitate cleaning or replacement of the filter assembly 120 , the filter assembly 120 is designed as a detachable structure and can be removed from the purification module housing 110 .

[0094] Specifically, a bottom plate folded edge 1111 bent upward is provided on the front side of the bottom plate 111 close to the air inlet side, and the bottom frame of the filter frame 121 is arranged close to the inner side surface of the bottom plate folded edge 1111 .

[0095] like Figure 8 A step 1131 is provided at the bottom of the electric control box 113 near the air inlet side, and the top frame of the filter frame 121 is embedded in the step 1131 .

[0096] The width of the step 1131 is equal to the width of the filter frame 121, so that the filter frame does not protrude from the front side of the electric control box.

[0097] like Fig. 9 As shown, a locking member 1135 is provided on the side of the electric control box 113 close to the air inlet side, and the locking member 1135 is configured to lock the filter frame 121 on the purification module housing 110 or to separate the filter frame 121 from the purification module housing 110 .

[0098] The locking piece 1135 is specifically a rotatable lock. When the lock is rotated so that its lower end is close to the filter frame 121, the filter assembly 120 can be fixed on the purification module housing 110; when the lock is rotated to separate from the filter frame 121, the filter assembly 120 can be removed for cleaning or repair and replacement.

[0099] In order to securely fix the filter assembly, multiple locks may be provided.

[0100] In some embodiments of the present application, see Figure 6 The ultraviolet light source assembly 130 includes a lamp frame 131 and an ultraviolet lamp 134 installed on the lamp frame 131 .

[0101] The lamp frame 131 is a rectangular frame, embedded in the rectangular frame structure.

[0102] A lamp holder 133 is provided on the top frame of the lamp frame 131 . By providing the lamp holder 133 , the ultraviolet lamp 134 can be screwed into and fixed on the lamp holder 133 , so that the maintenance and replacement of the ultraviolet lamp 134 is convenient.

[0103] There may be one or more ultraviolet lamps 134. The number of ultraviolet lamps 134 may be reasonably set according to the area of ​​the photocatalyst assembly.

[0104] The ultraviolet light source assembly 130 is positioned on the bottom plate 111 by the bottom positioning structure and then pressed and fixed by the electric control box 113 .

[0105] Specifically, a first positioning portion is disposed on the bottom plate 111 , and the first positioning portion is used to position the lamp frame 131 .

[0106] See also Fig.10 The first positioning portion is a first limiting piece 1112 disposed on the bottom plate 111 , and the first limiting piece 1112 contacts the lamp frame 131 for positioning.

[0107] An electrical connector 132 electrically connected to the ultraviolet lamp 134 is disposed on the upper surface of the top frame of the lamp frame 131 .

[0108] See also Figure 8 An elastic conductive member 1132 is provided on the bottom surface of the electric control box 113. When the electric control box 113 is fixed to the two side plates 112, the elastic conductive member 1132 is pressed onto the electrical connector 132. The elastic conductive member 1132 not only serves as electrical conduction, but also serves to press and fix the ultraviolet light source assembly 130.

[0109] The elastic conductive member 1132 may be a metal spring.

[0110] In some embodiments of the present application, Figure 7 As shown, the photocatalyst assembly 140 includes a catalytic mesh frame 141 and a photocatalytic mesh 142 installed on the catalytic mesh frame 141 .

[0111] The catalytic screen frame 141 is a rectangular frame, which is embedded in the rectangular frame structure.

[0112] The photocatalyst assembly 140 is positioned on the bottom plate 111 by the bottom positioning structure and then pressed and fixed by the electric control box 113 .

[0113] A second positioning portion is provided on the bottom plate 111 , and the second positioning portion is used to position the catalytic mesh frame 141 .

[0114] like Fig.10 As shown, the second positioning portion is a second limiting piece 1113 disposed on the bottom plate 111 , and the second limiting piece 1113 contacts the catalytic mesh frame 141 for positioning.

[0115] like Figure 8 As shown, the bottom surface of the electric control box 113 is provided with an elastic clamping position 1133 . When the electric control box 113 is fixed to the two side plates 112 , the elastic clamping position 1133 is pressed onto the catalytic screen frame 141 .

[0116] The elastic clamping position 1133 can be a spring, an elastic buckle, etc.

[0117] In some embodiments of the present application, the negative ion generator is fixed to the bottom of the electric control box 113. The main body of the negative ion generator is located in the electric control box 113.

[0118] A bracket 1134 is provided at the bottom of the electric control box 113 , and the discharge terminal 150 of the negative ion generator is fixed on the bracket 1134 .

[0119] A plurality of discharge terminals 150 may be provided to improve negative ion generation efficiency.

[0120] In some embodiments of the present application, the two sides of the side panel 112 of the purification module 100 have outwardly folded side panel edges 1121, and a first screw hole is provided on the side panel edges 1121. The left and right adjacent purification modules 100 are fixedly connected by the side panel edges 1121 and screws.

[0121] A nut (not shown in the figure) is embedded in the top of the electric control box 113, and a second screw hole (not shown in the figure) is opened on the bottom plate 111 of the purification module 100. Bolts are screwed into the embedded nuts to connect and fix the upper and lower adjacent purification modules 100.

[0122] The purification modules 100 adjacent to each other vertically and to each other horizontally are connected and fixed by screws, so as to facilitate assembly and disassembly and replacement. When one of the purification modules 100 is damaged, it can be replaced separately.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0124] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A combined air conditioner, comprising: A housing having an air inlet and an air outlet; A primary filter device is arranged in the housing near the air inlet; A fan, disposed in the housing, for driving air to flow from the air inlet to the air outlet; A heat exchanger is disposed in the housing and is located between the air inlet and the air outlet along the air flow direction; It is characterized in that Also included is an air purification device, which is arranged in the shell and is composed of a plurality of purification modules so that the overall size of the air purification device is adapted to the inner cavity size of the shell; The purification module comprises a purification module shell, an ultraviolet light source component, a photocatalyst component and a negative ion generator which are sequentially arranged in the purification module shell along the air flow direction.

2. The combined air conditioner according to claim 1, characterized in that: The purification module housing is surrounded by a bottom plate, side plates connected to both sides of the bottom plate, and an electric control box connected to the top of the two side plates to form a rectangular frame structure. The ultraviolet light source assembly, photocatalyst assembly and negative ion generator are fixed in the rectangular frame structure.

3. The combined air conditioner according to claim 2, characterized in that: The purification module also includes a filter assembly arranged on the air inlet side of the ultraviolet light source assembly, and the filter assembly includes a filter frame and at least one layer of filter installed on the filter frame; the filter frame is embedded in the rectangular frame structure.

4. The combined air conditioner according to claim 3, characterized in that: The front side of the bottom plate close to the air inlet side has a bottom plate folded edge bent upward; the bottom frame of the filter frame is arranged close to the inner side of the bottom plate folded edge; A step is provided at the bottom of the electric control box near the air inlet side, and the top frame of the filter frame is embedded in the step; A locking piece is provided on the side of the electric control box close to the air inlet side, and the locking piece is configured to lock the filter frame on the purification module housing or to separate the filter frame from the purification module housing.

5. The combined air conditioner according to claim 2, characterized in that: The ultraviolet light source assembly comprises a lamp frame and an ultraviolet lamp installed on the lamp frame; the lamp frame is embedded in the rectangular frame structure.

6. The combined air conditioner according to claim 5, characterized in that: The bottom plate is provided with a first positioning portion for positioning the lamp frame; The ultraviolet lamp is fixed on the top frame of the lamp frame, and an electrical connector electrically connected to the ultraviolet lamp is provided on the upper surface of the top frame of the lamp frame; The bottom surface of the electric control box is provided with an elastic conductive member, and the elastic conductive member is pressed on the electric connecting member.

7. The combined air conditioner according to claim 2, characterized in that: The photocatalyst assembly comprises a catalytic mesh frame and a photocatalytic mesh installed on the catalytic mesh frame. The catalytic mesh frame is embedded in the rectangular frame structure.

8. The combined air conditioner according to claim 7, characterized in that: The bottom plate is provided with a second positioning portion for positioning the catalytic mesh frame; The bottom surface of the electric control box is provided with an elastic clamping position, and the elastic clamping position is pressed on the catalytic mesh frame.

9. The combined air conditioner according to claim 2, characterized in that: The two sides of the side panel have outwardly folded side panel edges, and the side panel edges are provided with first screw holes. The left and right adjacent purification modules are fixedly connected by screws screwed into the first screw holes on the side panel edges.

10. The combined air conditioner according to claim 2, characterized in that: Nuts are embedded in the electric control box, and a second screw hole is provided on the bottom plate. The purification modules adjacent to each other are fixedly connected by screws twisted into the embedded nuts and the second screw holes.

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