Ducted fan

Abstract

The application relates to a ducted air conditioner, belonging to the air conditioning technical field. The ducted air conditioner comprises a casing, an electric control box body and a box cover, an installation opening is arranged in the casing; the electric control box body is located at one side of the casing close to the installation opening; the box cover is arranged at the installation opening and used for protecting the internal structure of the electric control box body; wherein the box cover comprises a first panel, a second panel and a limiting mechanism, the first panel is vertically arranged; the second panel is horizontally arranged and connected to the bottom of the first panel; the limiting mechanism comprises a limiting rib and a limiting clamping groove, the limiting rib is located at the side of the second panel facing the electric control box body; the limiting clamping groove is located at the bottom wall of the electric control box body and used for embedding the limiting rib; when the box cover is inserted into the installation opening from the horizontal direction; the limiting rib is clamped into the limiting clamping groove along the horizontal direction; at this time, the box cover seals the installation opening.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more particularly to a ducted air conditioner. Background Technology

[0002] Currently, with the widespread use of air conditioning, more and more users are choosing to install central air conditioning in their homes. Ductless air conditioning units, as a type of central air conditioning system, are favored by consumers for their lower cost, simpler structure, and concealed installation.

[0003] In existing technology, the electrical control box cover of the duct air conditioner is fixed to the duct air conditioner entirely with screws. At the top plate, due to the distance between the top plate and the roof, workers may easily touch the roof when using screwdrivers or other disassembly tools. Furthermore, since there is no other connecting structure between the electrical control box cover and the duct air conditioner, workers need to manually support the electrical control box cover when installing the first screw and removing the last screw, making the installation and disassembly of the electrical control box cover inconvenient.

[0004] Because the electrical control box cover and the duct unit are both fixed with screws, the installation process is tedious, requiring each screw to be installed individually. This results in low installation efficiency for the electrical control box cover, and the worker's installation speed is greatly affected by the tools used and the environment. Therefore, in the current technology, the installation and connection efficiency between the electrical control box cover and the duct unit is low. Utility Model Content

[0005] This application addresses, to at least some extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide a duct air conditioner that, by setting limiting mechanisms on the cover, the top plate connected to the cover, and the electrical control box, allows the cover to be installed by first moving the first panel upwards, enabling quick positioning and connection with the top plate. At this point, the second panel is at the same height as the bottom plate. Then, the second panel is moved inwards towards the electrical control box, causing the limiting ribs on the second panel to engage with the limiting slots on the bottom wall of the electrical control box, achieving self-locking between the cover and the electrical control box. This enables the initial installation of the cover and the duct air conditioner without requiring manual support from workers during disassembly and assembly, thus improving worker efficiency.

[0007] To achieve the above objectives, this application provides a duct air handling unit, comprising:

[0008] The housing has an installation port;

[0009] An electrical control box, located inside the housing near the mounting port;

[0010] A cover, disposed at the mounting opening, is used to protect the internal structure of the electrical control box; the cover includes:

[0011] The first panel is vertically arranged.

[0012] The second panel is horizontally positioned and connected to the bottom of the first panel;

[0013] Limiting mechanism, which includes:

[0014] A limiting rib, wherein the limiting rib is located on the side of the second panel facing the electrical control box;

[0015] A limiting slot is located on the bottom wall of the electrical control box and is used for embedding the limiting rib.

[0016] The box cover is inserted into the mounting opening from a horizontal direction, so that the limiting rib is engaged with the limiting slot in a horizontal direction; at this time, the box cover closes the mounting opening.

[0017] In the technical solution, during installation, the staff aligns the side of the first panel away from the second panel with the top plate. At this time, the second panel and the bottom plate are on the same plane. By inserting the cover into the installation opening from the horizontal direction, the limiting rib is snapped into the limiting slot in the horizontal direction, thereby achieving complete sealing of the installation opening by the cover and completing the installation and fixing of the cover and the electrical control box.

[0018] In some embodiments of this application, the housing includes:

[0019] Top plate, the top plate being horizontally arranged;

[0020] A base plate, which is parallel to the top plate and located below the top plate, with the mounting opening located on the base plate.

[0021] In the technical solution, by pointing out the top plate and bottom plate, the installation position of the cover on the casing is further clarified, as well as the specific direction of movement during installation, and the position of the installation port is further defined.

[0022] In some embodiments of this application, the lid further includes a positioning mechanism, which includes a first connecting portion, the first connecting portion comprising:

[0023] A first bending plate is connected to the side of the first panel near the electrical control box; the first bending plate is bent from a direction away from the first panel to a direction away from the second panel to form a first positioning part;

[0024] The first folded edge is disposed on the side of the top plate facing the bottom plate;

[0025] When the side of the first folded edge closest to the inside of the electrical control box abuts against the side of the first positioning part away from the electrical control box, the side of the first folded edge away from the top plate abuts against the side of the first positioning part facing the top plate.

[0026] In the technical solution, by setting a first positioning part and a first folded edge, when the side of the first folded edge near the bottom plate abuts against the side of the first positioning part away from the bottom plate, the side of the first positioning part near the first panel and the first panel are located on both sides of the first folded edge, forming a clamp on the first folded edge, thereby strengthening the connection between the first panel and the top plate.

[0027] In some embodiments of this application, the first connecting portion further includes a first clearance plate, which is connected to the side of the first positioning portion away from the first panel, and the first clearance plate is inclined from the side connected to the first positioning portion toward the interior of the electronic control box.

[0028] In the technical solution, by setting a first clearance plate, the distance between the end of the first clearance plate away from the first positioning part and the vertical surface of the first panel is increased, thereby facilitating the insertion of the first folded edge into the first positioning part, so as to further improve the installation efficiency of the box cover and the electrical control box.

[0029] In some embodiments of this application, the plane on which the first clearance plate is located is defined as the first plane, and the plane on the side of the first positioning part away from the electronic control box is defined as the second plane. The first plane and the second plane define an included angle α, and the included angle α satisfies: 10°<α<30°.

[0030] In the technical solution, by limiting the included angle between the first clearance plate and the first panel, interference between the setting of the first clearance plate and the structure set inside the electrical control box is prevented.

[0031] In some embodiments of this application, the positioning mechanism further includes a second connecting portion, the second connecting portion comprising:

[0032] The second bending plate is connected to the side of the second panel near the electrical control box; the second bending plate is bent from a direction away from the second panel to a direction away from the first panel to form a second positioning part;

[0033] The second folded edge is disposed on the bottom wall of the electrical control box near the top plate;

[0034] When the second folded edge is embedded in the second positioning part, the side of the second positioning part away from the first panel abuts against the side of the second folded edge close to the first panel, and the limiting rib engages with the limiting slot.

[0035] In the technical solution, by setting a second positioning part and a second folded edge, when the first folded edge is fully embedded in the first positioning part, the second panel and the bottom wall of the electrical control box are on the same horizontal plane. Then, the operator moves the first panel towards the inside of the electrical control box. When the second folded edge is fully inserted into the second positioning part, the limiting rib is embedded in the limiting slot, thereby achieving the closure of the second installation port on the second panel.

[0036] In some embodiments of this application, the second connecting portion further includes a second clearance plate, which is connected to the end of the second positioning portion away from the second panel, and the second clearance plate is inclined from the side connected to the second positioning portion toward the top plate.

[0037] In the technical solution, by setting a second clearance plate, the distance between the end of the second clearance plate away from the second positioning part and the horizontal plane of the second panel is increased. This distance is greater than the height of the second folded edge in the vertical plane, thereby facilitating the insertion of the second folded edge into the second positioning part and further improving the installation efficiency of the cover and the electrical control box.

[0038] In some embodiments of this application, the plane on which the second clearance plate is located is defined as the third plane, and the plane on the side of the second positioning part away from the top plate is defined as the fourth plane. The third plane and the fourth plane define an included angle β, which satisfies: 10° < β < 30°.

[0039] In the technical solution, the included angle between the second clearance plate and the second panel is limited to prevent the second clearance plate from interfering with the parts installed inside the electrical control box and affecting the normal installation and operation of the parts.

[0040] In some embodiments of this application, the first panel is provided with a first mounting hole for screw installation, and the electrical control box is provided with a second mounting hole at a corresponding position; when the box cover closes the mounting opening, the screw passes through both the first mounting hole and the second mounting hole.

[0041] In the technical solution, by setting a first mounting hole and a second mounting hole, and then using a threaded connection on top of the self-locking connection, the connection stability between the cover and the electrical control box is further enhanced.

[0042] In addition, this application also provides a duct air conditioner, which includes:

[0043] The housing has an installation port;

[0044] An electrical control box, located inside the housing near the mounting port;

[0045] A cover, disposed at the mounting opening, is used to protect the internal structure of the electrical control box; the cover includes:

[0046] The first panel is vertically arranged.

[0047] The second panel is horizontally positioned and connected to the bottom of the first panel;

[0048] Limiting mechanism, which includes:

[0049] A limiting rib, wherein the limiting rib is located on the side of the second panel facing the electrical control box;

[0050] A limiting slot is located on the vertical side wall of the electrical control box and is used for embedding the limiting rib.

[0051] The box cover is inserted into the mounting port from bottom to top, so that the limiting rib is engaged in the limiting slot in the vertical direction; at this time, the box cover closes the mounting port.

[0052] In the technical solution, during installation, the staff inserts the cover into the installation opening from bottom to top, so that the limiting rib is engaged in the limiting slot in the vertical direction. At this time, the first panel closes the first installation opening, and the second installation plate closes the second installation opening, thereby achieving complete closure of the installation opening by the cover and completing the installation and fixation of the cover and the electrical control box.

[0053] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the overall structure of the box lid according to an embodiment of this application;

[0055] Figure 2 This is a schematic diagram of the overall structure of the electrical control box according to an embodiment of this application;

[0056] Figure 3 This is a structural schematic diagram showing the position of the second panel and the housing according to an embodiment of this application;

[0057] Figure 4 This is a structural schematic diagram showing the positions of the first panel and the housing according to an embodiment of this application;

[0058] Figure 5 This is a front view of the second panel according to an embodiment of this application;

[0059] Figure 6 This is a front view of the first panel according to an embodiment of this application;

[0060] Figure 7 yes Figure 6 A cross-sectional schematic diagram of AA in the middle;

[0061] Figure 8 yes Figure 7 Enlarged view of point A in the middle;

[0062] Figure 9 yes Figure 7 Enlarged view of point B in the middle;

[0063] Figure 10 yes Figure 4 Cross-sectional schematic diagram of BB;

[0064] Figure 11 yes Figure 10 Enlarged view of point C in the middle;

[0065] Figure 12 yes Figure 10 Enlarged diagram of point D in the middle.

[0066] In the above figures: 100, housing; 101, base plate; 102, second side plate; 200, electrical control box; 201, connecting plate; 300, box cover; 301, first panel; 302, second panel; 400, limiting mechanism; 401, limiting rib; 402, limiting slot; 500, first connecting part; 501, first positioning part; 502, first folded edge; 503, first clearance plate; 504, reinforcing rib; 600, second connecting part; 601, second positioning part; 602, second folded edge; 603, second clearance plate; 700, first mounting hole; 800, second mounting hole. Detailed Implementation

[0067] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0072] In this application, the duct air conditioner includes a housing with an installation port. An electrical control box is installed inside the housing, located near the installation port. A cover is provided at the installation port to protect the internal structure of the electrical control box. Limiting mechanisms are provided at corresponding positions on the cover and the electrical control box to ensure that the connection between the cover and the electrical control box is self-locking when the cover is installed, thus achieving an initial connection between the cover and the electrical control box and facilitating subsequent fixed installation by the staff.

[0073] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0074] As attached Figures 1 to 4 As shown in an illustrative embodiment of this application, the duct air conditioner includes a housing 100, which forms the overall appearance of the duct air conditioner. The housing 100 has an installation port to facilitate the installation of parts by workers.

[0075] In some embodiments, the housing 100 includes a top plate, which is horizontally positioned and, during installation, is located on the side closest to the roof and parallel to the roof.

[0076] In some embodiments, the housing 100 includes a bottom plate 101, which is arranged parallel to the top plate and is located below the top plate.

[0077] In some embodiments, the housing 100 includes a first side plate, which is located between the top plate and the bottom plate 101, and two such first side plates are disposed opposite each other. Given that the overall shape of the housing 100 is a cuboid structure, the vertical length of the first side plate is the height of the housing 100, the length of the top plate is the length of the housing 100, the width of the top plate is the width of the housing 100, and the first side plate is disposed along the length direction of the top plate.

[0078] In some embodiments, the housing 100 includes a second side plate 102, which is located between the top plate and the bottom plate 101, and two are arranged opposite to each other. The second side plate 102 is arranged along the width direction of the top plate. The top plate, the bottom plate 101, the first side plate, and the second side plate 102 together enclose a closed space to protect the internal structure of the duct machine.

[0079] In some embodiments, the mounting port includes a first mounting port located on the second side plate 102.

[0080] In some embodiments, the mounting port includes a second mounting port located on the base plate 101, and the side of the first mounting port near the base plate 101 communicates with the side of the second mounting port near the second side plate 102.

[0081] In some embodiments, the duct air conditioner includes an electrical control box 200, which is located inside the housing 100 near the mounting port. The electrical control box 200 contains electrical control components such as circuit boards and is one of the important components of the internal structure of the duct air conditioner.

[0082] In some embodiments, the duct unit includes a cover 300, which is disposed at the mounting port to protect the internal structure of the electrical control box 200, preventing the electrical control components from being exposed to the outside and causing electric shock, and also preventing foreign objects, dust, etc., from entering the electrical control components through the mounting port and causing them to malfunction. The electrical control components are located close to the mounting port for easy maintenance or inspection by personnel. When it is necessary to inspect the electrical control components, personnel can open the mounting port by operating the cover 300.

[0083] In some embodiments, the cover 300 includes a first panel 301, which is vertically arranged. The width direction of the first panel 301 is the same as the width direction of the housing 100, and the length direction of the first panel 301 is the same as the height direction of the housing 100. The first panel 301 is used to close the first mounting opening located on the second side plate 102.

[0084] In some embodiments, the cover 300 includes a second panel 302, which is horizontally disposed and fixedly connected to the bottom of the first panel 301. Since the planes containing the first panel 301 and the second panel 302 are perpendicular, the cover 300 is L-shaped. The length direction of the second panel 302 is the same as the width direction of the first panel 301, and the width direction of the second panel 302 is the same as the length direction of the base plate 101. The second panel 302 is used to close the second mounting opening located on the base plate 101.

[0085] In the existing technology, the electrical control box cover 300 is fixed to the duct unit using screws. This means that the top plate is also fixed to the electrical control box cover 300 with screws. When workers disassemble and install the cover 300, the small distance between the top plate and the ceiling makes it easy for screwdrivers and other disassembly tools to touch the ceiling, making on-site disassembly and installation of the cover 300 difficult. Furthermore, since the cover 300 and the duct unit are only fixed with screws, there are no other limiting connections between the cover 300 and the duct unit when installing the first screw and removing the last screw. This means that workers need to use screwdrivers and other tools to secure the electrical control box cover 300 to the duct unit while simultaneously holding the cover 300 to prevent misalignment. This makes disassembly and installation of the cover 300 inconvenient and inefficient.

[0086] Based on this, a limiting mechanism 400 is provided in this application. When the cover 300 is installed, the relative position of the cover 300 and the electrical control box 200 is controlled to achieve self-locking connection between the cover 300 and the electrical control box 200, thereby realizing the initial installation of the cover 300 and the duct unit. This eliminates the need for workers to manually support the cover 300 during disassembly and assembly, thus improving the work efficiency of the workers.

[0087] In some embodiments, the cover 300 includes a limiting mechanism 400, the limiting mechanism 400 includes a limiting rib 401, the limiting rib 401 is located on the side of the second panel 302 facing the electronic control box 200, the limiting rib 401 extends along the length direction of the second panel 302, and the limiting rib 401 is located on the side of the second panel 302 facing the electronic control box 200.

[0088] In some embodiments, the limiting mechanism 400 includes a limiting groove 402 located on the bottom wall of the electrical control box 200. The limiting groove 402 is formed by a recess in the bottom wall of the electrical control box 200 from the side away from the top plate towards the top plate, for the insertion of the limiting rib 401. The length direction of the limiting groove 402 is the same as the extension direction of the limiting rib 401, and the length of the limiting groove 402 is slightly greater than the length of the limiting rib 401, so that the limiting rib 401 is fully inserted into the limiting groove 402. By increasing the connection length between the limiting rib 401 and the limiting groove 402, the stability of the connection between the cover 300 and the electrical control box 200 is increased.

[0089] In the above technical solution, taking the process of the worker installing the cover 300 onto the duct machine as an example, the worker aligns the side of the first panel 301 away from the second panel 302 with the top plate. At this time, the second panel 302 and the bottom plate 101 are on the same plane. The cover 300 is inserted into the installation opening from the horizontal direction so that the limiting rib 401 is inserted into the limiting slot 402 from the horizontal direction. At this time, the first panel 301 closes the first installation opening, and the second installation plate closes the second installation opening, thereby realizing that the cover 300 completely closes the installation opening, and at the same time, the installation and fixation of the cover 300 and the electrical control box 200 are completed.

[0090] In some embodiments, refer to Figures 5 to 9 To facilitate control of the installation position of the cover 300 and the electrical control box 200, the cover 300 also includes a positioning mechanism. The positioning mechanism includes a first connecting part 500. A first mounting groove is provided on the side of the first panel 301 away from the second panel 302. The first connecting part 500 is disposed in the first mounting groove. The first connecting part 500 includes a first bending plate. The first bending plate is fixedly connected to the bottom of the mounting groove. The first bending plate is bent from the direction away from the vertical surface of the first panel 301 to the direction away from the second panel 302 to form the first positioning part 501.

[0091] In some embodiments, refer to Figure 6 and Figure 8The first connecting portion 500 includes a first folded edge 502, which is disposed on the side of the top plate facing the bottom plate 101. The first folded edge 502 can be embedded into the first positioning portion 501. When the side of the first folded edge 502 near the interior of the electrical control box 200 abuts against the side of the first positioning portion 501 away from the electrical control box 200, the side of the first folded edge 502 away from the top plate abuts against the side of the first positioning portion 501 facing the top plate.

[0092] In some embodiments, the first folded edge 502 is formed by bending from one side of the top plate toward the bottom plate 101, so as to facilitate the production and processing of the first folded edge 502 and improve production efficiency.

[0093] In some embodiments, to further enhance the structural strength of the first folded edge 502, the first folded edge 502 is first bent from one side of the top plate toward the bottom plate 101, and then bent from the side of the first folded edge 502 away from the top plate toward the top plate.

[0094] In the above technical solution, refer to Figure 10 and Figure 11 When the worker installs and connects the cover 300 to the electrical control box 200, the worker aligns the first panel 301 with the first folded edge 502 and slides the first panel 301 upwards, so that the first folded edge 502 is inserted into the first positioning part 501. When the side of the first folded edge 502 near the bottom plate 101 abuts against the side of the first positioning part 501 away from the bottom plate 101, the side of the first positioning part 501 near the first panel 301 and the first panel 301 are located on both sides of the first folded edge 502, forming a clamp on the first folded edge 502, thereby strengthening the connection between the first panel 301 and the top. The connection between the panels; at the same time, when the first folded edge 502 is fully inserted into the first positioning part 501, the side of the first panel 301 away from the second panel 302 abuts against the top plate, and the second panel 302 and the bottom plate 101 are on the same horizontal plane, thereby realizing the rapid positioning of the installation positions of the first panel 301 and the second panel 302. At this time, the first panel 301 completely closes the first installation port. The operator then pushes the first panel 301 to move it towards the electrical control box 200. When the limiting rib 401 is embedded in the limiting slot 402, the installation of the box cover 300 is completed.

[0095] In some embodiments, to ensure smooth installation of the first connecting part 500 and the first folded edge 502 during assembly, the distance between the end of the vertical surface of the first positioning part 501 away from the first panel 301 and the end near the bottom of the first mounting groove is set to L1. The value of L1 is in the range of 2mm ≤ L1 ≤ 8mm. When L1 < 2mm, the length of the vertical surface of the first positioning part 501 is too short. When the first folded edge 502 is inserted into the first positioning part 501, the first folded edge 502 is prone to slipping out of the first positioning part 501, requiring workers to rework and reinstall it, reducing work efficiency. When L1 > 8mm, the length of the vertical surface of the first positioning part 501 is too long, leading to increased production difficulty and cost. At the same time, the first positioning part 501 may interfere with the internal structure of the electrical control box 200, affecting its installation and use. In this embodiment, the optimal size of L1 is 5mm.

[0096] In some embodiments, the first folded edge 502 is provided to facilitate the connection between the cover 300 and the top plate, and also to increase the structural strength at the edge of the top plate. Therefore, the thickness of the top plate is set in correspondence with the thickness of the first folded edge 502. Let the thickness of the top plate be t1 and the thickness of the first folded edge 502 be L2. Then the optimal size of L2 is: 2t1-0.2~2t1. At this time, the bending spacing of the first bending plate is adapted to the thickness of the first folded edge 502 to facilitate the insertion and mating.

[0097] In some embodiments, the first connecting portion 500 further includes a first clearance plate 503, which is connected to the side of the first positioning portion 501 away from the first panel 301. The first clearance plate 503 is inclined inward from the side connected to the first positioning portion 501 toward the interior of the electrical control box 200. By providing the first clearance plate 503, the distance between the end of the first clearance plate 503 away from the first positioning portion 501 and the vertical surface of the first panel 301 is increased, thereby facilitating the insertion of the first folded edge 502 into the first positioning portion 501, and further improving the installation efficiency of the box cover 300 and the electrical control box 200.

[0098] In some embodiments, refer to Figure 8To prevent interference between the first clearance plate 503 and the structure inside the electrical control box 200, the plane containing the first clearance plate 503 is defined as the first plane, and the plane containing the side of the first positioning part 501 away from the electrical control box 200 is defined as the second plane. The first plane and the second plane define an included angle α, which satisfies the condition: 10° < α < 30°. When α ≤ 10°, the included angle between the vertical planes of the first clearance plate 503 and the first positioning part 501 is too small, so the distance between the end of the first clearance plate 503 away from the first positioning part 501 and the first panel 301 remains basically unchanged compared to the original spacing. This makes it impossible for the first clearance plate 503 to achieve the desired effect, and it does not improve the working efficiency when the first panel 301 and the first folded edge 502 are inserted. When α ≥ 30°, the tilt angle of the first clearance plate 503 is too large, making it easy for the first clearance plate 503 to interfere with the internal structure of the electrical control box 200, affecting its normal installation and use. In the embodiments of this application, the included angle α is preferably 20°.

[0099] In some embodiments, to ensure assembly effectiveness, the distance from the end of the first clearance plate 503 furthest from the first positioning part 501 to its connection point with the first positioning part 501 is set as L3. The value of L3 ranges from 2mm to L1 to 8mm. When L1 < 2mm, the length of the inclined surface of the first clearance plate 503 is too short. When the first folded edge 502 is inserted into the first positioning part 501 through the first clearance plate 503, the distance between the end of the first clearance plate 503 furthest from the first positioning part 501 and the first folded edge 502 is small, thus failing to effectively increase the opening distance for the first folded edge 502 to be inserted into the first positioning part 501, and the purpose of setting the first clearance plate 503 is lost. When L3 > 8mm, the length of the inclined surface of the first clearance plate 503 is too long, which makes it easy to interfere with the normal installation of the internal structure of the electrical control box 200, affecting its installation and use. In this embodiment, the optimal size of L3 is 5mm.

[0100] In some embodiments, in order to strengthen the clamping and fixing of the first panel 301 and the first folded edge 502, two first connecting parts 500 are provided, and two first mounting grooves are provided accordingly. The two first connecting parts 500 are respectively located near the two sides of the first panel 301, so as to increase the contact area between the first folded edge 502 and the first panel 301 on the side near the first panel 301, thereby increasing the connection and fixing strength between the first panel 301 and the top plate.

[0101] In some embodiments, in order to increase the structural strength of the contact between the first panel 301 and the first folded edge 502, a reinforcing rib 504 is provided on the first panel 301. The reinforcing rib 504 is located between the two first connecting portions 500 and works with the two first positioning portions 501 to increase the stability of the clamping between the first panel 301 and the first folded edge 502.

[0102] In some embodiments, refer to Figure 7 and Figure 9 To facilitate control over the installation position between the second panel 302 and the bottom wall of the electrical control box 200, the positioning mechanism includes a second connecting portion 600. A second mounting groove is formed on the side of the second panel 302 away from the first panel 301, and the second connecting portion 600 is disposed in the second mounting groove. The second connecting portion 600 includes a second bent plate, which is connected to the bottom of the second mounting groove. The second bent plate is bent from a horizontal direction away from the second panel 302 to a direction away from the first panel 301 to form the second positioning portion 601.

[0103] In some embodiments, the second connecting portion 600 includes a second folded edge 602, which is disposed on the bottom wall of the electrical control box 200 facing the top plate. The second folded edge 602 can be embedded in the second positioning portion 601. When the side of the second folded edge 602 near the top plate abuts against the side of the second positioning portion 601 facing the bottom wall of the electrical control box 200, the side of the second folded edge 602 near the first panel 301 abuts against the side of the second positioning portion 601 away from the first panel 301.

[0104] In some embodiments, the second folded edge 602 is formed by bending the bottom wall of the electrical control box 200 from the side near the first panel 301 toward the direction away from the first panel 301, so as to facilitate the production and processing of the second folded edge 602 and improve production efficiency.

[0105] In the above technical solution, refer to Figure 10 and Figure 12 When the staff installs and connects the cover 300 to the electrical control box 200, the staff aligns the first panel 301 with the first folded edge 502 and moves the first panel 301 upward so that the first folded edge 502 is fully embedded in the first positioning part 501, thus closing the first installation opening. At this time, the second panel 302 and the bottom wall of the electrical control box 200 are on the same horizontal plane. The staff then moves the first panel 301 towards the inside of the electrical control box 200. When the second folded edge 602 is fully inserted into the second positioning part 601, the limiting rib 401 is engaged in the limiting slot 402. Thus, while the second panel 302 closes the second installation opening, the cover 300 and the electrical control box 200 are connected and fixed, realizing the self-locking function of the cover 300 and the electrical control box 200.

[0106] In some embodiments, refer to Figure 9To ensure smooth installation of the second connecting part 600 and the second folded edge 602 during assembly, the distance between the end of the vertical surface of the second positioning part 601 furthest from the second panel 302 and the end near the bottom of the second mounting groove is set to L4. The value of L4 is in the range of 2mm ≤ L1 ≤ 8mm. When L4 < 2mm, the horizontal length of the second positioning part 601 is too short. When the second folded edge 602 is inserted into the second positioning part 601, it is easy for the second folded edge 602 to slip out of the second positioning part 601, requiring workers to rework and reinstall it, reducing work efficiency. When L4 > 8mm, the horizontal length of the second positioning part 601 is too long, leading to increased production difficulty and cost. At the same time, the second positioning part 601 may interfere with the internal structure of the electrical control box 200, affecting its installation and use. In this embodiment, the optimal size of L4 is 5mm.

[0107] In some embodiments, the second folded edge 602 is provided to facilitate the connection between the cover 300 and the bottom wall of the electrical control box 200, and also to increase the structural strength at the edge of the bottom wall of the electrical control box 200. Therefore, the thickness of the bottom wall of the electrical control box 200 is set in correspondence with the thickness of the second folded edge 602. If the thickness of the bottom wall of the electrical control box 200 is t2 and the thickness of the second folded edge 602 is L5, then the optimal size of L5 is: 2t2-0.2~2t2. At this time, the bending spacing of the second bending plate is adapted to the thickness of the second folded edge 602 to facilitate the insertion and mating.

[0108] In some embodiments, the second connecting portion 600 includes a second clearance plate 603, which is connected to the end of the second positioning portion 601 away from the bottom of the second mounting groove. The second clearance plate 603 is inclined towards the top plate from the side connected to the second positioning portion 601. By providing the second clearance plate 603, the distance between the end of the second clearance plate 603 away from the second positioning portion 601 and the horizontal plane of the second panel 302 is increased. This distance is greater than the height of the second folded edge 602 in the vertical plane, thereby facilitating the insertion of the second folded edge 602 into the second positioning portion 601 and further improving the installation efficiency of the cover 300 and the electrical control box 200.

[0109] In some embodiments, to prevent the second clearance plate 603 from interfering with components disposed inside the electrical control box 200 and affecting the normal installation and operation of the components, the plane on which the second clearance plate 603 is located is defined as the third plane, and the plane on the side of the second positioning part 601 away from the top plate is defined as the fourth plane. The third plane and the fourth plane define an included angle β, which satisfies: 10° < β < 30°. When β ≤ 10°, the included angle between the second clearance plate 603 and the horizontal plane of the second positioning part 601 is too small, so the distance between the end of the second clearance plate 603 away from the second positioning part 601 and the second panel 302 is basically unchanged compared to the original spacing, so the setting of the second clearance plate 603 cannot achieve the desired effect, and there is basically no improvement in the working efficiency when the second panel 302 and the second folded edge 602 are inserted; when β ≥ 30°, the tilt angle of the second clearance plate 603 is too large, so the second clearance plate 603 is prone to interfering with the internal structure of the electrical control box 200, affecting its normal installation and use. In the embodiments of this application, the included angle β is preferably 20°.

[0110] In some embodiments, to ensure assembly effectiveness, the distance from the end of the second clearance plate 603 furthest from the second positioning part 601 to its connection with the first positioning part 501 is set as L6, and the value of L6 ranges from 2mm to 8mm. When L6 < 2mm, the length of the inclined surface of the second clearance plate 603 is too short. When the second folded edge 602 is inserted into the second positioning part 601 through the second clearance plate 603, the distance between the end of the second clearance plate 603 furthest from the second positioning part 601 and the second folded edge 602 is small, thus failing to effectively increase the opening distance for the second folded edge 602 to be inserted into the second positioning part 601. When L6 > 8mm, the length of the inclined surface of the second clearance plate 603 is too long, which easily interferes with the installation of the internal structure of the electrical control box 200, affecting its normal use. In this embodiment, the optimal size of L6 is 5mm.

[0111] In some embodiments, refer to Figure 1 and Figure 2 To further enhance the connection stability between the cover 300 and the electrical control box 200, the first panel 301 is provided with a first mounting hole 700 for screw installation, and the electrical control box 200 is provided with a second mounting hole 800 at the corresponding position. When the cover 300 closes the mounting opening, the operator installs screws so that they pass through both the first mounting hole 700 and the second mounting hole 800, thereby achieving a fixed connection between the first panel 301 and the electrical control box 200.

[0112] In some embodiments, to facilitate production and enhance the structural stability of the connection between the first panel 301 and the electrical control box 200, a connecting plate 201 is provided on the side of the electrical control box 200 near the first panel 301. The connecting plate 201 is fixedly connected to the side wall of the electrical control box 200, and the second mounting hole 800 is located on the connecting plate 201. When the first folded edge 502 is inserted into the first positioning part 501 and the limiting rib 401 is embedded in the limiting slot 402, the connecting plate 201 abuts against the first panel 301, and the first mounting hole 700 and the second mounting hole 800 are aligned. At this time, the relative position of the first panel 301 and the electrical control box 200 is fixed, so that the operator can operate screws to install it in the first mounting hole 700 and the second mounting hole 800, thereby completing the fixed connection between the cover 300 and the electrical control box 200.

[0113] In some embodiments, in order to further strengthen the connection between the cover 300 and the electrical control box 200, a plurality of first mounting holes 700 are provided, and are respectively located on both sides of the first panel 301. A plurality of second mounting holes 800 are provided accordingly. In this embodiment, the number of first mounting holes 700 and second mounting holes 800 is 2.

[0114] In addition, this application also provides a duct air conditioner, which includes a housing 100 for forming the overall appearance of the duct air conditioner. The housing 100 has an installation port to facilitate the installation of parts by workers.

[0115] In some embodiments, the housing 100 includes a top plate, which is horizontally positioned and, during installation, is located on the side closest to the roof and parallel to the roof.

[0116] In some embodiments, the housing 100 includes a bottom plate 101, which is arranged parallel to the top plate and is located below the top plate.

[0117] In some embodiments, the housing 100 includes a first side plate, which is located between the top plate and the bottom plate 101, and two such first side plates are disposed opposite each other. Given that the overall shape of the housing 100 is a cuboid structure, the vertical length of the first side plate is the height of the housing 100, the length of the top plate is the length of the housing 100, the width of the top plate is the width of the housing 100, and the first side plate is disposed along the length direction of the top plate.

[0118] In some embodiments, the housing 100 includes a second side plate 102, which is located between the top plate and the bottom plate 101, and two are arranged opposite to each other. The second side plate 102 is arranged along the width direction of the top plate. The top plate, the bottom plate 101, the first side plate, and the second side plate 102 together enclose a closed space to protect the internal structure of the duct machine.

[0119] In some embodiments, the mounting port includes a first mounting port located on the second side plate 102.

[0120] In some embodiments, the mounting port includes a second mounting port located on the base plate 101, and the side of the first mounting port near the base plate 101 communicates with the side of the second mounting port near the second side plate 102.

[0121] In some embodiments, the duct air conditioner includes an electrical control box 200, which is located inside the housing 100 near the mounting port. The electrical control box 200 contains electrical control components such as circuit boards and is one of the important components of the internal structure of the duct air conditioner.

[0122] In some embodiments, the duct unit includes a cover 300, which is disposed at the mounting port to protect the internal structure of the electrical control box 200, preventing the electrical control components from being exposed to the outside and causing electric shock, and also preventing foreign objects, dust, etc., from entering the electrical control components through the mounting port and causing them to malfunction. The electrical control components are located close to the mounting port for easy maintenance or inspection by personnel. When it is necessary to inspect the electrical control components, personnel can open the mounting port by operating the cover 300.

[0123] In some embodiments, the cover 300 includes a first panel 301, which is vertically arranged. The width direction of the first panel 301 is the same as the width direction of the housing 100, and the length direction of the first panel 301 is the same as the height direction of the housing 100. The first panel 301 is used to close the first mounting opening located on the second side plate 102.

[0124] In some embodiments, the cover 300 includes a second panel 302, which is horizontally disposed and fixedly connected to the bottom of the first panel 301. Since the planes containing the first panel 301 and the second panel 302 are perpendicular, the cover 300 is L-shaped. The length direction of the second panel 302 is the same as the width direction of the first panel 301, and the width direction of the second panel 302 is the same as the length direction of the base plate 101. The second panel 302 is used to close the second mounting opening located on the base plate 101.

[0125] In some embodiments, the cover 300 includes a limiting mechanism 400, the limiting mechanism 400 includes a limiting rib 401, the limiting rib 401 is located on the side of the second panel 302 facing the electronic control box 200, the limiting rib 401 extends along the length direction of the second panel 302, and the limiting rib 401 is located on the side of the second panel 302 facing the electronic control box 200.

[0126] In some embodiments, the limiting mechanism 400 includes a limiting groove 402 located on the vertical sidewall of the electrical control box 200. The limiting groove 402 is formed by recessing from the vertical sidewall of the electrical control box 200 away from its opposite side towards the opposite sidewall, for embedding the limiting rib 401. The length direction of the limiting groove 402 is the same as the extension direction of the limiting rib 401.

[0127] In the above technical solution, taking the process of the worker installing the cover 300 onto the duct machine as an example, the worker aligns the side of the first panel 301 away from the second panel 302 with the top plate. At this time, the second panel 302 and the vertical side wall of the electrical control box 200 are on the same plane. The cover 300 is inserted into the installation opening from bottom to top so that the limiting rib 401 is inserted into the limiting slot 402 in the vertical direction. At this time, the first panel 301 closes the first installation opening, and the second installation plate closes the second installation opening, thereby realizing that the cover 300 completely closes the installation opening and simultaneously completes the installation and fixation of the cover 300 and the electrical control box 200.

[0128] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A ducted air conditioner, characterized in that, It includes: The housing has an installation port; An electrical control box, located inside the housing near the mounting port; A cover, disposed at the mounting opening, is used to protect the internal structure of the electrical control box; the cover includes: The first panel is vertically arranged. The second panel is horizontally positioned and connected to the bottom of the first panel; Limiting mechanism, which includes: A limiting rib, wherein the limiting rib is located on the side of the second panel facing the electrical control box; A limiting slot is located on the bottom wall of the electrical control box and is used for embedding the limiting rib. The box cover is inserted into the mounting opening from a horizontal direction, so that the limiting rib is engaged with the limiting slot in a horizontal direction; at this time, the box cover closes the mounting opening.

2. The duct air conditioner according to claim 1, characterized in that, The housing includes: Top plate, the top plate being horizontally arranged; A base plate, which is parallel to the top plate and located below the top plate, with the mounting opening located on the base plate.

3. The duct air conditioner according to claim 2, characterized in that, The lid further includes a positioning mechanism, which includes a first connecting portion, the first connecting portion comprising: A first bending plate is connected to the side of the first panel near the electrical control box; the first bending plate is bent from a direction away from the first panel to a direction away from the second panel to form a first positioning part; The first folded edge is disposed on the side of the top plate facing the bottom plate; When the side of the first folded edge closest to the inside of the electrical control box abuts against the side of the first positioning part away from the electrical control box, the side of the first folded edge away from the top plate abuts against the side of the first positioning part facing the top plate.

4. The duct air conditioner according to claim 3, characterized in that, The first connecting part further includes a first clearance plate, which is connected to the side of the first positioning part away from the first panel. The first clearance plate is inclined from the side connected to the first positioning part toward the interior of the electrical control box.

5. The duct air conditioner according to claim 4, characterized in that, The plane where the first clearance plate is located is defined as the first plane, and the plane on the side of the first positioning part away from the electronic control box is defined as the second plane. The first plane and the second plane define an included angle α, which satisfies: 10° < α < 30°.

6. The duct air conditioner according to claim 3, characterized in that, The positioning mechanism further includes a second connecting part, the second connecting part comprising: The second bending plate is connected to the side of the second panel near the electrical control box; the second bending plate is bent from the direction away from the second panel to the direction away from the first panel to form a second positioning part; The second folded edge is disposed on the bottom wall of the electrical control box near the top plate; When the second folded edge is embedded in the second positioning part, the side of the second positioning part away from the first panel abuts against the side of the second folded edge close to the first panel, and the limiting rib engages with the limiting slot.

7. The duct air conditioner according to claim 6, characterized in that, The second connecting part further includes a second clearance plate, which is connected to the end of the second positioning part away from the second panel. The second clearance plate is inclined from the side connected to the second positioning part toward the top plate.

8. The duct air conditioner according to claim 7, characterized in that, The plane where the second clearance plate is located is defined as the third plane, and the plane on the side of the second positioning part away from the top plate is defined as the fourth plane. The third plane and the fourth plane define an included angle β, which satisfies: 10° < β < 30°.

9. The duct air conditioner according to claim 1, characterized in that, The first panel is provided with a first mounting hole for screw installation, and the electrical control box is provided with a second mounting hole at a corresponding position; when the box cover closes the mounting opening, the screw passes through both the first mounting hole and the second mounting hole.

10. A ducted air conditioner, characterized in that, It includes: The housing has an installation port; An electrical control box, located inside the housing near the mounting port; A cover, disposed at the mounting opening, is used to protect the internal structure of the electrical control box; the cover includes: The first panel is vertically arranged. The second panel is horizontally positioned and connected to the bottom of the first panel; Limiting mechanism, which includes: A limiting rib, wherein the limiting rib is located on the side of the second panel facing the electrical control box; A limiting slot is located on the vertical side wall of the electrical control box and is used for embedding the limiting rib. The box cover is inserted into the mounting port from bottom to top, so that the limiting rib is engaged in the limiting slot in the vertical direction; at this time, the box cover closes the mounting port.

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