Combined air handling unit

Abstract

The utility model relates to the technical field of air handling, and discloses a combined air handling unit which comprises a box body, a plurality of functional sections are arranged in the box body, and the plurality of functional sections at least comprise a fresh air section, a filtering section, a cooling or heating section, a fan section and an air supply section. An access door capable of being opened and closed is arranged on the box body corresponding to at least one functional section; the combined type air handling unit further comprises an electric control cabinet, the electric control cabinet is installed on the inner side face of the access door, and the electric control cabinet can be opened towards the inner side direction of the access door. According to the combined air handling unit, the electric control cabinet is installed on the inner side face of the unit access door in an embedded mode and is integrated with the unit box body, the overall appearance of the unit is improved, the waterproof and dustproof characteristics of the unit are fully utilized, and the manufacturing cost of the electric control cabinet is reduced.

Description

Technical Field

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

[0002] Among the current modular air handling unit products, most of the electric control cabinets are designed to be independent of the unit and need to be independently installed and wired on site at the installation site. This approach brings a number of problems, including the need to reserve installation space for the electric control cabinet, time-consuming on-site wiring, and the appearance of the wiring on the front of the unit is not neat. Some modular air handling unit products in the industry have tried to use the solution of hanging the electric control cabinet on the unit box panel, but this has caused the electric control cabinet to protrude from the outer surface of the unit, making the appearance abrupt and the integrity poor. Although there are a few products that have tried to integrate the electric control cabinet into the functional section of the unit, most of them adopt the solution of drilling holes in the box panel and installing the electric control cabinet as a whole. This solution is costly and not economical to implement.

[0003] 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

[0004] In response to the problems pointed out in the background technology, the present application provides a combined air handling unit, in which the electrical control cabinet is embedded on the inner side of the unit's maintenance door and is integrated with the unit case, which not only improves the overall appearance of the unit, but also makes full use of the waterproof and dustproof properties of the unit itself, thereby reducing the manufacturing cost of the electrical control cabinet.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] In some embodiments of the present application, a combined air handling unit is provided, comprising:

[0007] A box body, wherein a plurality of functional sections are arranged in the box body, and the plurality of functional sections at least include a fresh air section, a filtering section, a cooling or heating section, a fan section, and an air supply section;

[0008] An openable and closable inspection door is provided on the box corresponding to at least one functional section;

[0009] The combined air handling unit also includes:

[0010] An electric control cabinet is installed on the inner side of the inspection door, and the electric control cabinet can be opened toward the inner side of the inspection door.

[0011] The electric control cabinet is completely embedded inside the unit, which not only improves the overall appearance of the unit, but also makes full use of the waterproof and dustproof properties of the unit. The electric control cabinet itself does not need to be designed to be waterproof and dustproof, reducing manufacturing costs.

[0012] In some embodiments of the present application, the electric control cabinet includes a bottom box having a receiving cavity and a control module received in the receiving cavity; the bottom box is hinged on the inner side of the inspection door and can be opened toward the inner side of the inspection door. The bottom box and the inner side of the inspection door enclose a closed receiving cavity for receiving the control module.

[0013] In some embodiments of the present application, a magnetic attraction structure is provided between the bottom box and the inner side surface of the inspection door, and when the electric control cabinet is closed, the bottom box is fixed to the inspection door by the magnetic attraction structure.

[0014] In some embodiments of the present application, the magnetic attraction structure includes at least one magnet embedded on the inner side of the inspection door and a flange formed by bending along the side edge of the bottom box; when the electric control cabinet is closed, the flange is tightly attracted to the magnet. The magnetic attraction structure is simple and easy to operate.

[0015] In some embodiments of the present application, a handle is provided on the base box, and the electric control cabinet is opened and closed by operating the handle.

[0016] In some embodiments of the present application, at least one wire hole is provided on the side of the bottom box, and the wire hole is used for connecting the wire harness to the interior of the electric control cabinet; the wire harness connected to the interior of the electric control cabinet is configured so that the wire harness is not subjected to force when the inspection door or the electric control cabinet is opened. The wire hole is used for connecting the wire harness, and is preferably provided on the top surface of the bottom box.

[0017] In some embodiments of the present application, a plurality of heat dissipation holes are provided on the base box, and the heat dissipation holes are used to dissipate heat of the control module, thereby ensuring that the control module can effectively dissipate heat during operation, maintain its normal operating temperature range, and prevent the control module from overheating and affecting its performance and service life.

[0018] In some embodiments of the present application, a mounting hole is provided on the inspection door on the outside of the electric control cabinet, a display module is installed in the mounting hole, the display module is electrically connected to the control module, and the display module is used to display status information of the electric control cabinet.

[0019] In some embodiments of the present application, a control button and an indicator light are provided on the inspection door on the outside of the electric control cabinet; the control button is connected to the control module, and the control button is used to trigger the control module to execute specific operation instructions; the indicator light is connected to the control module, and the indicator light is used to display the status information of the electric control cabinet.

[0020] The display module, indicator lights, etc. can show the operating status of the equipment in real time. Users can understand and monitor the working status and operating information of the equipment in real time, and discover and handle abnormal situations in time.

[0021] In some embodiments of the present application, a mounting rail is provided in the electric control cabinet, and the control module is mounted on the mounting rail. The mounting rail can conveniently adjust the position of the control module, making the layout of components inside the electric control cabinet more flexible and changeable.

[0022] In some embodiments of the present application, a sealing structure is further provided on the inspection door. When the inspection door is closed, the sealing structure fits tightly against the box body to ensure the sealing performance of the functional section.

[0023] Compared with the prior art, the advantages and positive effects of the utility model are:

[0024] In the above embodiment, the combined air handling unit achieves the following technical effects by using an electric control cabinet embedded in the inner side of the inspection door:

[0025] Strong overall appearance: the electric control cabinet is embedded in the inner side of the inspection door and does not protrude from the outer surface of the unit, making the appearance more neat and beautiful.

[0026] Reduce costs: By leveraging the unit's own waterproof and dustproof properties, the electric control cabinet does not require a complex waterproof and dustproof design, thereby reducing manufacturing costs.

[0027] Simplified structure: Embedded installation avoids the tediousness of reserving installation space and on-site wiring, simplifying the overall structure and installation process.

[0028] Improve installation efficiency: The embedded design reduces the time for on-site installation and wiring, improves installation efficiency, and saves manpower and time costs.

[0029] Thermal insulation and efficiency enhancement: The electric control cabinet is installed in an embedded manner, avoiding opening holes in the box panel and improving the thermal insulation performance of the unit.

[0030] 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

[0031] 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.

[0032] Figure 1 A schematic structural diagram of a combined air handling unit according to some embodiments is shown;

[0033] Figure 2 A diagram showing an open state of an access door in a modular air handling unit according to some embodiments is shown;

[0034] Figure 3 A partial structural diagram of a combined air handling unit after an inspection door is opened according to some embodiments is shown;

[0035] Figure 4 A front structural schematic diagram of an inspection door and an electric control cabinet in a combined air handling unit according to some embodiments is shown;

[0036] Figure 5 A schematic diagram of the back structure of an inspection door and an electric control cabinet in a combined air handling unit according to some embodiments is shown;

[0037] Figure 6 A schematic diagram of the side structure of an inspection door and an electric control cabinet in a combined air handling unit according to some embodiments is shown;

[0038] Figure 7 A state diagram showing an electric control cabinet on an access door of a combined air handling unit according to some embodiments after opening;

[0039] Figure 8 A schematic diagram of the internal structure of an electric control cabinet in a combined air handling unit according to some embodiments is shown;

[0040] Fig. 9 A schematic diagram of the bottom box structure of an electric control cabinet in a combined air handling unit according to some embodiments is shown;

[0041] Fig.10 A schematic diagram of the structure of an access door in a combined air handling unit according to some embodiments is shown;

[0042] Description of reference numerals:

[0043] 10-box; 11-fresh air section; 12-filter section; 13-cooling or heating section; 14-humidification or dehumidification section; 15-fan section; 16-air supply section;

[0044] 20-inspection door; 21-installation hole; 22-door handle; 23-sealing structure;

[0045] 30-electric control cabinet; 31-bottom box; 311-flange; 312-heat dissipation hole; 313-wire hole; 32-hinge; 33-magnet; 34-handle; 35-wire trough component; 36-installation rail;

[0046] 40-display module; 41-display screen; 42-display screen fixing member; 50-control button; 60-indicator light. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] The utility model provides an embodiment of a combined air handling unit. The combined air handling unit is one of the most important equipment for air treatment. It does not have a cold or heat source itself, but uses cold or hot water or steam as a medium to complete the functions of filtering, purifying, heating, cooling, humidifying, dehumidifying, silencing, and fresh air treatment of the air.

[0054] Combined air handling unit is a customized air handling equipment, which is the core part of the air conditioning system composed of multiple independent functional sections installed according to a specific air handling process. These functional sections can be flexibly matched according to different environmental requirements and process requirements to meet the air conditioning needs of different occasions.

[0055] like Figure 1-Figure 10 As shown, some embodiments of the present application provide a combined air handling unit.

[0056] like Figure 1 The basic structure of the combined air handling unit usually includes but is not limited to the following functional sections: fresh air section 11, filtration section 12, cooling or heating section 13, humidification or dehumidification section 14, fan section 15, and air supply section 16. The various functional sections are arranged in sequence to jointly realize air processing and regulation.

[0057] Specifically, fresh air enters the combined air handling unit through the fresh air section 11, passes through the filter section 12 to filter out dust and debris; then it is cooled or heated by the cooling or heating section 13 to make the air reach the required temperature point, and then it is humidified to the humidity requirement of the system through the humidification or dehumidification section 14, that is, it reaches the specified air supply state point, and finally the treated air is delivered into the room through the fan section 15 and the air supply section 16.

[0058] The box body 10 of the combined air handling unit is composed of box panels, and the inside of the box panels is filled with foaming material to improve the thermal insulation performance.

[0059] Among them, Figure 2As shown, an openable inspection door 20 is provided on the box 10 corresponding to at least one functional section.

[0060] By providing an inspection door 20 on the housing 10, each functional section can be easily inspected and maintained. In particular, when it is necessary to replace the filter or clean the internal components, the provision of the inspection door 20 provides great convenience.

[0061] The unit further includes an electric control cabinet 30 , which is configured to be installed on the inner side of one of the inspection doors 20 , and the electric control cabinet 30 can be opened toward the inner side of the inspection door 20 .

[0062] Among them, the inspection door 20 of the electric control cabinet 30 can be installed with a whole box plate structure due to the large size of the electric control cabinet 30, which is hinged on the box body 10. The inspection doors on other functional sections can be installed by opening installation ports on the box plate.

[0063] The electric control cabinet 30 is embedded on the inner side of the unit maintenance door 20 and is integrated with the unit case 10 , which not only improves the overall appearance of the unit, but also makes full use of the waterproof and dustproof properties of the unit itself, reducing the manufacturing cost of the electric control cabinet 30 .

[0064] The above-mentioned combined air handling unit, by adopting the electric control cabinet 30 embedded in the inner side of the inspection door 20, specifically achieves the following technical effects:

[0065] Strong overall appearance: the electric control cabinet 30 is embedded in the inner side of the inspection door 20 and does not protrude from the outer surface of the unit, making the appearance more neat and beautiful.

[0066] Reduce costs: By taking advantage of the waterproof and dustproof properties of the unit itself, the electric control cabinet 30 does not require a complicated waterproof and dustproof design, thereby reducing manufacturing costs.

[0067] Simplified structure: Embedded installation avoids the tediousness of reserving installation space and on-site wiring, simplifying the overall structure and installation process.

[0068] Improve installation efficiency: The embedded design reduces the time for on-site installation and wiring, improves installation efficiency, and saves manpower and time costs.

[0069] Thermal insulation and efficiency enhancement: The electric control cabinet 30 is installed in an embedded manner, avoiding opening holes in the box plate and improving the thermal insulation performance of the unit.

[0070] In some embodiments of the present application, Figure 5 and Figure 7 As shown, the electric control cabinet 30 includes a bottom box 31 having a receiving cavity, and a control module (not shown in the figure) received in the receiving cavity.

[0071] The bottom box 31 is hingedly mounted on the inner side of the inspection door 20 and can be conveniently opened toward the inner side of the inspection door 20 .

[0072] This hinge design makes the opening and closing of the electric control cabinet 30 very convenient, and also ensures the stability of the electric control cabinet 30 when it is closed.

[0073] Specifically, the bottom box 31 is mounted on the inner side surface of the inspection door 20 via two upper and lower hinges 32 .

[0074] The control module is responsible for all control functions of the unit and is safely contained in the accommodating cavity of the bottom box 31 and is well protected.

[0075] In some embodiments of the present application, the bottom box 31 and the inner side surface of the inspection door 20 are attracted to each other through a magnetic attraction structure.

[0076] The magnetic structure not only simplifies the installation process and facilitates opening and closing, but also ensures that the bottom box 31 is firmly fixed on the inspection door 20 when closed, preventing the bottom box 31 from shifting due to vibration or other external forces.

[0077] Specifically, if Figure 7 As shown, the magnetic attraction structure includes at least one magnet 33 embedded on the inner side of the inspection door 20 and at least one inwardly bent flange 311 on the side of the bottom box 31.

[0078] The inwardly bent flange 311 on the side of the bottom box 31 not only increases the strength of the bottom box 31 , but also forms an effective suction surface with the magnet 33 .

[0079] The position and number of the magnets 33 are carefully designed to ensure that they can be tightly attracted to the flange 311 of the bottom box 31 . When the electric control cabinet 30 is closed, the flange 311 will fit tightly with the magnets 33 , thereby ensuring the stability and airtightness of the electric control cabinet 30 .

[0080] The bottom box 31 is made of stainless steel, which has excellent corrosion resistance and strength. In addition, its excellent thermal conductivity helps to dissipate heat, ensuring that the internal components of the bottom box 31 can maintain a suitable working temperature even after long-term operation.

[0081] In some embodiments of the present application, a handle 34 is provided on the bottom box 31 , and the user can conveniently open and close the electric control cabinet 30 by operating the handle 34 .

[0082] The handle 34 may be disposed on a side surface of the bottom box 31 or on a bottom surface of the bottom box 31 opposite to the inspection door 20 according to actual needs.

[0083] The material of the handle 34 is usually matched with that of the bottom box 31, and is also made of stainless steel or other corrosion-resistant materials to ensure overall durability and aesthetics.

[0084] In some embodiments of the present application, see Figure 5 One or more wire holes 313 are provided on the side of the bottom box 31 , and the wire holes 313 are used for the wire harness to access the interior of the electric control cabinet 30 .

[0085] The wire hole 313 may be disposed on the top surface or the bottom surface of the bottom box 31 .

[0086] The wiring harness needs to be of sufficient length so that the wiring harness is not stressed when the inspection door 20 or the electric control cabinet 30 is opened.

[0087] See also Figure 8 A wiring trough component 35 is also provided inside the electric control cabinet 30, that is, inside the bottom box 31, to ensure the direction and layout of the wiring harness inside the electric control cabinet 30. The wiring trough component 35 not only ensures the neatness and beauty of the wiring harness, but also effectively improves the overall performance and stability of the unit.

[0088] The electric control cabinet 30 is also provided with mounting parts for mounting the control module, such as mounting rails 36. The mounting rails 36 can conveniently adjust the position of the control module, making the layout inside the electric control cabinet 30 more flexible and changeable.

[0089] In some embodiments of the present application, a plurality of heat dissipation holes 312 are formed on the bottom box 31 .

[0090] The heat dissipation holes 312 can ensure that the control module can effectively dissipate heat during operation, maintain its normal operating temperature range, and prevent the control module from being affected in performance and service life due to overheating.

[0091] The heat dissipation holes 312 are specifically arranged on the left and right sides of the bottom box 31 and are long strip holes. The heat dissipation holes 312 are arranged in a reasonable manner and are set in size to ensure that the control module can effectively dissipate heat when working.

[0092] In some embodiments of the present application, Figure 1 and Fig.10 As shown, a mounting hole 21 is provided on the inspection door 20 outside the electric control cabinet 30, and a display module 40 is installed in the mounting hole 21. The display module 40 is electrically connected to the control module and is used to display the status information of the electric control cabinet 30.

[0093] Specifically, Figure 4 and Figure 7As shown, the display module 40 includes a display screen 41 and a display screen fixing member 42, and the display screen 41 is fixed in the mounting hole 21 through the display screen fixing member 42. Through the display module 40, the user can understand and monitor the working status and operation information of the electric control cabinet 30 and the equipment in real time, and timely discover and handle abnormal situations.

[0094] In some embodiments of the present application, see Figure 4 A control button 50 is provided on the inspection door 20 outside the electric control cabinet 30. The control button 50 is connected to the control module and is used to trigger the control module to execute a specific operation instruction.

[0095] When the user presses the control button 50, the control module receives a signal and executes operations such as starting or stopping related equipment, adjusting equipment parameters, etc. according to a preset program or logic.

[0096] The control button 50 can be a mechanical button or a touch button.

[0097] Furthermore, the inspection door 20 outside the electric control cabinet 30 is also equipped with one or more indicator lights 60, which are connected to the control module and are used to display the current status information of the electric control cabinet 30, such as whether the inspection door 20 is locked, whether the equipment is running, etc., so that the operator can understand the system status in real time and make corresponding operation adjustments. This embodiment exemplarily shows three indicator lights.

[0098] In some embodiments of the present application, see Fig.10 The inspection door 20 is also provided with a sealing structure 23. When the inspection door 20 is closed, the sealing structure 23 is closely fitted with the box body 10 to ensure the sealing performance of the functional section and effectively prevent external moisture and dust from entering the interior of the unit.

[0099] The sealing structure 23 may be made of an elastic material (such as rubber or silicone) to ensure that the sealing structure 23 is tightly fitted to the housing 10 when the inspection door 20 is closed.

[0100] The sealing structure 23 is designed to be in the shape of a strip surrounding the edge of the inspection door 20 to provide a comprehensive sealing effect.

[0101] Furthermore, the inspection door 20 is provided with a lockable door handle 22 to provide a safety locking function.

[0102] When the access door 20 is closed, by locking the door handle 22 , it is possible to ensure that the door will not be accidentally opened, thereby preventing unauthorized personnel from opening the access door 20 .

[0103] 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 the 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 solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

[0104] 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 handling unit, comprising: A box body, wherein a plurality of functional sections are arranged in the box body, and the plurality of functional sections at least include a fresh air section, a filtering section, a cooling or heating section, a fan section, and an air supply section; It is characterized in that At least one of the boxes corresponding to the functional sections is provided with an openable and closable inspection door; The combined air handling unit also includes: An electric control cabinet is configured to be installed on the inner side of the inspection door and can be opened toward the inner side of the inspection door.

2. The combined air handling unit according to claim 1, characterized in that: The electric control cabinet comprises a bottom box having a receiving cavity and a control module received in the receiving cavity; the bottom box is hinged on the inner side surface of the inspection door, and the bottom box is configured to open toward the inner side of the inspection door.

3. The combined air handling unit according to claim 2, characterized in that: A magnetic attraction structure is provided between the bottom box and the inner side surface of the inspection door. When the electric control cabinet is closed, the bottom box is fixed to the inspection door by the magnetic attraction structure.

4. The combined air handling unit according to claim 3, characterized in that: The magnetic attraction structure includes at least one magnet embedded on the inner side of the inspection door, and a flange formed by bending along the side edge of the bottom box; when the electric control cabinet is closed, the flange is tightly attracted to the magnet.

5. The combined air handling unit according to claim 2, characterized in that: A handle is provided on the bottom box, and the handle is arranged away from the side where the bottom box is hinged with the inspection door; the handle is configured to open and close the electric control cabinet through operation.

6. The combined air handling unit according to claim 2, characterized in that: At least one wire hole is provided on the side of the bottom box, and the wire hole is used for connecting the wire harness to the interior of the electric control cabinet; the wire harness connected to the interior of the electric control cabinet is configured so that the wire harness is not subjected to stress when the inspection door or the electric control cabinet is opened.

7. The combined air handling unit according to claim 2, characterized in that: The bottom box is provided with a plurality of heat dissipation holes, and the heat dissipation holes are used for heat dissipation of the control module.

8. The combined air handling unit according to claim 2, characterized in that: An installation hole is provided on the inspection door outside the electric control cabinet, a display module is installed in the installation hole, the display module is electrically connected to the control module, and the display module is used to display the status information of the electric control cabinet.

9. The combined air handling unit according to claim 2, characterized in that: An operation button and an indicator light are provided on the inspection door on the outside of the electric control cabinet; the operation button is connected to the control module, and the operation button is used to trigger the control module to execute an operation instruction; the indicator light is connected to the control module, and the indicator light is used to display the status information of the electric control cabinet.

10. The combined air handling unit according to claim 1, characterized in that: The inspection door is also provided with a sealing structure. When the inspection door is closed, the sealing structure fits tightly with the box body to ensure the sealing performance of the functional section.

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