Outdoor unit

Abstract

Provided in the present application is an outdoor unit, comprising a grille, a housing assembly and a pre-assembled member. The housing assembly comprises a housing and a panel connected to each other, the panel and the grille are arranged opposite to each other, and the panel has a first side surface facing the grille. The pre-assembled member is mounted on the first side surface and is arranged along the length direction of the panel, and the grille is slidably connected to the pre-assembled member, such that the grille can move relative to the panel along the length direction of the panel.

Description

outdoor unit

[0001] This application claims priority to Chinese patent applications filed on May 27, 2024, with application numbers 202421179288.9 and 202421172709.5, entitled “Outdoor Unit” and “Net Cover and HVAC Equipment”, respectively, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of heat exchange equipment technology, and more particularly to an outdoor unit. Background Technology

[0003] The mesh cover is a component of the outdoor unit of the air conditioner. The mesh cover needs to be installed on the casing of the outdoor unit with screws. During installation, the mesh cover needs to be moved manually and then fixed with screws. During this operation, the mesh cover has a certain weight, which makes the disassembly and assembly of the mesh cover and the casing troublesome. Summary of the Invention

[0004] This application provides an outdoor unit that facilitates the assembly and disassembly of the grille and housing.

[0005] This application provides an outdoor unit, including a mesh cover, a housing assembly, and a pre-installed component; the housing assembly includes a shell and a panel connected to each other, the panel being disposed opposite to the mesh cover, and the panel having a first side facing the mesh cover; the pre-installed component is installed on the first side and arranged along the length direction of the panel, and the mesh cover is slidably connected to the pre-installed component so that the mesh cover can move relative to the panel along the length direction of the panel.

[0006] Based on the outdoor unit of this application embodiment, when assembling the outdoor unit's casing assembly and mesh cover, the pre-assembled parts are first fixed to the first side of the panel, and then the mesh cover is slidably connected to the pre-assembled parts. The user can slide the mesh cover left and right to adjust the relative position of the mesh cover and the panel. After adjusting the mesh cover to a suitable position, the mesh cover is fixedly connected to the pre-assembled parts to limit the relative position of the mesh cover and the panel. During this process, the user does not need to manually stabilize the mesh cover.

[0007] In some embodiments of this application, the pre-assembled component includes a first connecting part, a hanging part, and a limiting part. The first connecting part is installed on a first side. The hanging part is connected to the first connecting part and extends toward the mesh cover along the thickness direction of the panel. The limiting part is connected to the hanging part and extends away from the first connecting part along the height direction of the panel. The mesh cover includes a cover body and a hanging frame. The hanging frame is fixed to the top of the cover body and has a limiting groove. The hanging frame is suspended from the hanging part. The limiting part is located in the limiting groove.

[0008] Based on the above embodiments, the first connecting part is connected to the first side of the panel to achieve a fixed connection between the pre-assembled part and the panel. After the suspension part is connected to the first connecting part and extends away from the first side, the suspension part protrudes from the first side, making it easier for the net cover to be suspended on the suspension part. Since the limiting part extends along the height direction of the panel, after the limiting part is in the limiting groove, it restricts the movement of the suspension frame relative to the panel along the thickness direction of the panel, that is, it restricts the movement of the net cover relative to the panel along the thickness direction of the panel. After the suspension frame is suspended on the suspension part, it can prevent the suspension frame from falling off the suspension part.

[0009] In some embodiments of this application, the suspension portion extends along the length of the panel.

[0010] Based on the above embodiments, the suspension frame is suspended on the suspension part to connect the mesh cover and the pre-assembled part; and the suspension part extends along the length direction of the panel, so that the suspension frame can slide relative to the pre-assembled part along the length direction of the panel.

[0011] In some embodiments of this application, the suspension frame has a first receiving groove on the side away from the cover body, and the outdoor unit also includes a plurality of first connecting parts. The first connecting parts include a first force-applying part and a first connecting part that are connected to each other. The first connecting part passes through the suspension frame and the suspension part from the bottom wall of the first receiving groove to fix the suspension frame and the suspension part. The first force-applying part is located in the first receiving groove.

[0012] Based on the above embodiments, after the first connector connects the suspension frame and the suspension part, the first force-applying part of the first connector is located in the first receiving groove, so the user cannot observe the first connector from the front of the outdoor unit, thus improving the aesthetics of the outdoor unit.

[0013] In some embodiments of this application, the panel has a first card interface, the first connecting part includes a first main body sub-part and a first card receiving sub-part, the first main body sub-part is connected to the hanging part; the second card receiving sub-part is connected to the first main body sub-part and is snapped into the first card interface.

[0014] Based on the above embodiments, the first card connector is inserted into the first card interface to realize the connection between the pre-assembled part and the panel.

[0015] In some embodiments of this application, the outdoor unit further includes a positioning element, which is arranged along the height direction of the panel and installed on the first side of the panel; the mesh cover further includes a positioning frame, which is arranged along the height direction of the panel and fixedly connected to the cover body, and the positioning frame abuts against the positioning element.

[0016] Based on the above embodiments, during the process of the mesh cover sliding relative to the pre-assembled part along the length direction of the panel, the mesh cover's positioning frame abutting against the positioning member indicates that the mesh cover and the panel are aligned. At this time, the user can fix the pre-assembled part and the hanging frame through the first connector.

[0017] In some embodiments of this application, there are two positioning elements, which are respectively arranged on the two sides of the panel along the length direction; there are two positioning frames, which are fixed on both sides of the mesh cover along the length direction of the panel, and the positioning frames abut against the corresponding positioning elements.

[0018] Based on the above embodiments, the two positioning frames can enhance the structural strength of the cover body, and the two positioning components can improve the accuracy of the mesh cover positioning.

[0019] In some embodiments of this application, the positioning member includes a second connecting part and a lateral positioning part. The second connecting part is fixedly connected to the panel. The lateral positioning part is connected to the second connecting part and extends away from the first side along the thickness direction of the panel. The lateral positioning part has a lateral positioning surface, which abuts against the positioning frame.

[0020] Based on the above embodiments, the second connecting part is fixedly connected to the panel to realize the connection between the positioning member and the panel. After the lateral positioning part extends away from the first side along the thickness direction of the panel, the lateral positioning part is set in a state of protruding from the first side so that the mesh cover can abut against the lateral positioning surface of the lateral positioning part during the sliding process along the length direction of the panel, thereby restricting the position of the mesh cover in the length direction of the panel.

[0021] In some embodiments of this application, the panel is provided with a second card interface, and the second connecting part includes a second main body sub-part and a second card connector sub-part. The second main body sub-part is connected to the lateral positioning part; the second card connector sub-part is connected to the main body sub-part and is snapped into the second card interface.

[0022] Based on the above embodiments, the second card connector is inserted into the second card interface to achieve the connection between the positioning component and the panel.

[0023] In some embodiments of this application, the second main body sub-part includes a connecting section, an extension section, and a longitudinal limiting section. The connecting section is disposed in contact with the first side and connected to the second snap-fit ​​sub-part. The extension section is connected to the connecting section and extends away from the first side along the thickness direction of the panel. The longitudinal limiting section is connected to the extension section and is disposed parallel to the first side. The side of the longitudinal limiting section away from the panel is a longitudinal limiting surface. Multiple longitudinal limiting surfaces are flush along the thickness direction of the panel and abut against the positioning frame.

[0024] Based on the above embodiments, the connecting segment is disposed in close contact with the first side, increasing the contact area between the first side and the connecting segment. The extension segment extends toward the mesh cover to extend the longitudinal limiting segment to a suitable position. The longitudinal limiting segment abuts against the mesh cover to limit the position of the mesh cover in the thickness direction of the panel.

[0025] In some embodiments of this application, the positioning frame has a second receiving groove on the side away from the cover body, and the outdoor unit also includes a plurality of second connecting parts. The second connecting parts include a second force-applying part and a second connecting part that are connected to each other. The second connecting part passes through the positioning frame and the transverse positioning part from the bottom wall of the second receiving groove to fix the positioning frame and the positioning part; the second force-applying part is located in the second receiving groove.

[0026] Based on the above embodiments, after the second connector connects the positioning frame and the horizontal positioning part, the second force-applying part of the second connector is located in the second receiving groove. The user will not be able to observe the second connector from the front of the outdoor unit, which improves the aesthetics of the outdoor unit.

[0027] In some embodiments of this application, the outdoor unit further includes a fan wheel, and the mesh cover has a first air outlet area corresponding to the fan wheel. During the rotation of the fan wheel, the area swept by the orthographic projection of the fan wheel on the mesh cover overlaps with the first air outlet area. The mesh cover has multiple first air outlet openings in the first air outlet area, and the ratio of the sum of the areas of the multiple first air outlet openings to the area of ​​the first air outlet area is S1, wherein 3 / 4≤S1≤7 / 8.

[0028] Based on the mesh cover of the present application embodiment, within this range, the first air outlet opening occupies a larger area of ​​the first air outlet region, which can reduce the obstruction of the airflow by the mesh cover, that is, enhance the air outlet performance of the mesh cover, and make the mesh cover have sufficient solid structure in the first air outlet region to improve the structural strength of the mesh cover in the first air outlet region.

[0029] In some embodiments of this application, the distance between the edge of the first air outlet and the edge of the adjacent first air outlet is M, where 1mm≤M≤2mm.

[0030] Based on the above embodiments, there is a sufficient solid structure between adjacent first air outlet openings to enhance the structural strength of the mesh cover in the first air outlet area.

[0031] In some embodiments of this application, the ratio of the dimension of the first air outlet area in the length direction of the mesh cover to the length of the mesh cover is K, where 1 / 2 ≤ K ≤ 3 / 4.

[0032] Based on the above embodiments, within this range, the size of the first air outlet area in the length direction of the mesh cover is limited to a reasonable range, so that the mesh cover has a sufficient air outlet range in its own length direction, without the size of the first air outlet area in the length direction of the mesh cover being too large, which would cause the airflow through the mesh cover to be too dispersed in the length direction of the mesh cover.

[0033] In some embodiments of this application, the ratio of the height of the first air outlet area in the height direction of the mesh cover to the height of the mesh cover is H, where 7 / 10 ≤ H ≤ 3 / 4.

[0034] Based on the above embodiments, within this range, the length of the first air outlet area in the height direction of the mesh cover is limited to a reasonable range, so that the mesh cover has sufficient air outlet range in its own height direction, without the first air outlet area being too long in the height direction of the mesh cover, causing the airflow through the mesh cover to be too dispersed in the height direction of the mesh cover.

[0035] In some embodiments of this application, adjacent first air outlets are aligned along the length of the mesh cover, and adjacent first air outlets are staggered along the height of the mesh cover.

[0036] Based on the above embodiments, the first air outlet openings are evenly arranged in the first air outlet area.

[0037] In some embodiments of this application, the first air outlet area includes a structural sub-area and an air outlet sub-area.

[0038] The structural sub-region overlaps with the hub of the wind turbine along the axial direction of the wind turbine; the air outlet sub-region surrounds the periphery of the structural sub-region, and the air outlet sub-region overlaps with the area occupied by the wind turbine blades when the wind turbine rotates along the axial direction of the wind turbine, with the first air outlet opening arranged within the air outlet sub-region.

[0039] Based on the above embodiments, and since the orthographic projection of the structural sub-region along the axial direction of the wind turbine on the wind turbine coincides with at least a portion of the hub of the wind turbine, and since the wind volume generated by the wind turbine at the hub position is extremely small, the structural sub-region has little impact on the air outlet capacity of the hood, but can significantly improve the structural strength of the hood in the first air outlet area; and the orthographic projection of the air outlet sub-region along the axial direction of the wind turbine on the wind turbine coincides with the blades of the wind turbine, but does not affect the air outlet capacity of the hood in the first air outlet area at all.

[0040] In some embodiments of this application, the mesh cover also has a second air outlet area surrounding the first air outlet area, and the mesh cover has a plurality of second air outlet openings in the second air outlet area, wherein the density of the first air outlet openings is greater than the density of the second air outlet openings.

[0041] Based on the above embodiments, the further the second air outlet area is from the axis of the impeller, the less airflow it can receive. Therefore, the mesh cover still has a large air outlet demand in the second air outlet area near the first air outlet area, and a large number of second air outlet openings are needed to ensure that the mesh cover still has good air outlet performance in the second air outlet area near the first air outlet area. When the mesh cover has a small or no air outlet demand in the second air outlet area far from the first air outlet area, fewer or no second air outlet openings can be set, making the structure of the mesh cover more reasonable. It also achieves good structural strength of the mesh cover in its own edge area, so the mesh cover can be fixed to the housing of the HVAC equipment through its own edge area.

[0042] In some embodiments of this application, the farther the second air outlet is from the edge of the first air outlet area, the smaller the cross-sectional area of ​​a single second air outlet.

[0043] Based on the above embodiments, the further the second air outlet area is from the axis of the impeller, the less airflow it can receive. Therefore, the mesh cover still has a large air outlet demand in the second air outlet area near the first air outlet area. The cross-section of the second air outlet opening has a large cross-section to ensure that the mesh cover still has good air outlet performance in the second air outlet area near the first air outlet area. When the mesh cover has little or no air outlet demand in the second air outlet area far from the first air outlet area, a second air outlet opening with a small cross-sectional area can be provided or no second air outlet opening can be provided, making the structure of the mesh cover more reasonable. It also satisfies the requirement that the mesh cover has good structural strength in its own edge area, so the mesh cover can be fixed to the housing of the HVAC equipment through its own edge area.

[0044] In some embodiments of this application, the housing has an air outlet, and the first air outlet area is projected onto the air outlet along the axial direction of the air outlet.

[0045] In some embodiments of this application, the housing includes a main body and a hinge portion. The main body is fixedly connected to the panel and surrounds an electrical cavity with the panel. The main body has a maintenance opening communicating with the electrical cavity. The hinge portion is rotatably connected to the main body and can cover the maintenance opening.

[0046] Based on the above embodiments, after opening the hinge, users or maintenance personnel can repair the parts inside the electrical cavity through the maintenance opening without disassembling the mesh cover.

[0047] In some embodiments of this application, the maintenance opening is provided on any side wall of the housing distributed along the length of the panel.

[0048] Based on the above embodiments, the front side of the outdoor unit is usually used to install a mesh cover, and the rear side is usually set against the wall. The maintenance opening is opened on any side wall distributed along the length of the panel of the housing, making reasonable use of the existing structure of the housing. Attached Figure Description

[0049] Figure 1 is a schematic diagram of the structure of the outdoor unit in one embodiment of this application;

[0050] Figure 2 is a schematic diagram of the outdoor unit shown in Figure 1 after the mesh cover has been removed;

[0051] Figure 3 is a schematic diagram of the structure after the pre-assembled component and the first connector are connected in one embodiment of this application;

[0052] Figure 4 is an enlarged schematic diagram of the structure after the pre-assembled parts and the suspension frame are connected in one embodiment of this application;

[0053] Figure 5 is a structural diagram of the outdoor unit shown in Figure 2 after removing the hinge, pre-assembled parts and positioning parts;

[0054] Figure 6 is a schematic diagram of the connection structure of the pre-installed component, the hanging frame, the positioning component, the positioning frame and the panel in one embodiment of this application.

[0055] Figure 7 is a schematic diagram of part A in Figure 6;

[0056] Figure 8 is a partial structural schematic diagram of the positioning element in one embodiment of this application;

[0057] Figure 9 is another structural schematic diagram of the outdoor unit in one embodiment of this application;

[0058] Figure 10 is a schematic diagram of the structure of the mesh cover in one embodiment of this application;

[0059] Figure 11 is a schematic diagram of the structure of part B in Figure 10.

[0060] Explanation of reference numerals in the attached drawings: 10. Mesh cover; 11. First air outlet area; 111. Structural sub-area; 112. Air outlet sub-area; 1121. First air outlet opening; 12. Suspension frame; 121. Limiting groove; 122. First receiving groove; 13. Positioning frame; 131. Second receiving groove; 14. Second air outlet area; 141. Second air outlet opening; 15. Cover body; 151. Ventilation opening; 20. Housing assembly; 21. Housing; 2. Main body; 24. Maintenance opening; 212. Hinge; 22. Panel; 221. First side; 222. First card interface; 223, second card interface; 23, air outlet; 30, pre-assembled part; 31, first connecting part; 3, first main body sub-part; 312, first card connector part; 32, suspension part; 33, limiting part; 40, first connecting piece; 50, positioning piece; 51, second connecting part; 5, second main body sub-part; 5111, connecting section; 5112, extension section; 5113, longitudinal limiting section; 512, second card connector part; 52, lateral positioning part; 521, lateral positioning surface; 60, second connecting piece; 6, electrical cavity. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0062] The mesh cover is a component of the outdoor unit of the air conditioner. The mesh cover needs to be installed on the casing of the outdoor unit with screws. During installation, the mesh cover needs to be moved manually to align the connecting holes on the mesh cover with the connecting holes on the outdoor unit, and then fixed with screws. During this operation, the mesh cover has a certain weight, which makes the disassembly and assembly of the mesh cover and the casing troublesome.

[0063] To solve the above-mentioned technical problems, please refer to Figures 1 and 2. This application provides an outdoor unit that facilitates the user's disassembly and assembly of the 10 rows of the mesh cover.

[0064] Referring to Figures 1 and 2, the outdoor unit includes a grille 10, a housing assembly 20, and a pre-installed component 30. The housing assembly 20 includes a housing 21 and a panel 22 connected to each other. The panel 22 is disposed opposite to the grille 10 and has a first side 221 facing the grille 10. The pre-installed component 30 is installed on the first side 221 and is arranged along the length direction of the panel 22. The grille 10 is slidably connected to the pre-installed component 30 so that the grille 10 can move relative to the panel 22 along the length direction of the panel 22. The length direction of the panel 22 is consistent with the AA axis direction in Figures 1 and 2.

[0065] The main function of the outdoor unit is to expel indoor heat to the outside through refrigerant circulation, while simultaneously releasing cool air into the room, thereby controlling room temperature and humidity. Outdoor units are typically installed in residential or commercial air conditioning systems and consist of a compressor, fan, refrigerant, electrical components, etc., connected to the indoor unit via refrigerant pipes to form a complete air conditioning system. There are various types of outdoor units, including wall-mounted, cabinet-style, and ducted types, which can be selected according to different usage needs.

[0066] It is understood that the panel 22 in this embodiment is the front panel 22 of the outdoor unit. The panel 22 is located on the housing 21. In addition to its sealing and air-proofing functions, the panel 22 also serves to protect and prevent rainwater and debris from entering the interior of the outdoor unit, thereby protecting the electrical components inside the outdoor unit.

[0067] Based on the outdoor unit of this application embodiment, during assembly of the outdoor unit's housing assembly 20 and mesh cover 10, the pre-installed component 30 is first fixed to the first side 221 of the panel 22, and then the mesh cover 10 is slidably connected to the pre-installed component 30. The user can slide the mesh cover 10 left and right to adjust the relative position of the mesh cover 10 and the panel 22. After adjusting the mesh cover 10 to a suitable position, the mesh cover 10 is fixedly connected to the pre-installed component 30 to limit the relative position of the mesh cover 10 and the panel 22. During this process, the user does not need to manually stabilize the mesh cover 10.

[0068] Referring to Figures 2, 3, and 4, the pre-assembled component 30 includes a first connecting part 31, a suspension part 32, and a limiting part 33. The first connecting part 31 is mounted on the first side surface 221. The suspension part 32 is connected to the first connecting part 31 and extends towards the mesh cover 10 along the thickness direction of the panel 22. The limiting part 33 is connected to the suspension part 32 and extends away from the first connecting part 31 along the height direction of the panel 22. The mesh cover 10 includes a cover body 15 and a suspension frame 12. The suspension frame 12 is fixed to the top of the cover body 15 and is suspended from the suspension part 32. The suspension frame 12 has a limiting groove 121 and is suspended to the suspension part 32. The limiting part 33 is located within the limiting groove 121. The height direction of the panel 22 is consistent with the BB axis direction in Figures 1 and 2, and the thickness direction of the panel 22 is consistent with the CC axis direction in Figures 1 and 2.

[0069] The first connecting part 31 is used to connect with the first side 221 of the panel 22 to achieve a fixed connection between the pre-assembled part 30 and the panel 22. The connection method between the first connecting part 31 and the panel 22 is not limited in this application embodiment. For example, it can be glued, bolted, welded, snapped, etc. For example, please refer to Figures 3, 4 and 5. In some embodiments of this application, the panel 22 is provided with a first snap-fit ​​interface 222. The first connecting part 31 includes a first main body sub-part 3 and a first snap-fit ​​sub-part 312. The first main body sub-part 3 is connected to the suspension part 32. The second snap-fit ​​sub-part 512 is connected to the first main body sub-part 3 and snapped into the first snap-fit ​​interface 222. That is, the fixed connection between the first connecting part 31 and the panel 22 is achieved by snap-fit. Of course, on the basis of the snap-fit ​​between the first main body sub-part 3 and the panel 22, the first main body sub-part 3 and the panel 22 can still be further reinforced by gluing, connecting via connectors, welding or snap-fit. In this embodiment of the application, there can be multiple first card interfaces 222 and multiple first card connectors 312, and multiple first card interfaces 222 and multiple first card connectors 312 can be arranged along the length direction of the panel 22.

[0070] The suspension part 32 is used to suspend the net cover 10. It can be understood that the extension direction of the suspension part 32 (the thickness direction of the panel 22) is set at a 90° angle with the first side 221. After extending towards the net cover 10 along the thickness direction of the panel 22, the suspension part 32 protrudes from the first side 221. Thus, the net cover 10 can be suspended on the suspension part 32 by placing the upper edge of the net cover 10 on the suspension part 32, which makes it easy for the net cover 10 to be suspended on the suspension part 32.

[0071] The limiting part 33 is used to restrict the movement of the mesh cover 10 relative to the pre-installed part 30 along the thickness direction of the mesh cover 10, and to prevent the mesh cover 10 from falling off the suspension part 32. In this embodiment, the limiting part 33 extends away from the first connecting part 31 along the height direction of the panel 22. After the limiting part 33 is in the limiting groove 121, the mesh cover 10 can keep the limiting part 33 in the limiting groove 121 under its own weight, so as to prevent the mesh cover 10 from falling off the pre-installed part 30. Moreover, the cooperation between the limiting part 33 and the groove wall of the limiting groove 121 can guide the mesh cover 10 when it slides relative to the pre-installed part 30 along the length direction of the panel 22. In some embodiments of this application, the limiting part 33 and the groove wall of the limiting groove 121 are slidably connected along the length direction of the panel 22.

[0072] Referring to Figures 2 and 6, in some embodiments of this application, the suspension portion 32 extends along the length direction of the panel 22, enabling the suspension frame 12 to slide relative to the pre-installed component 30 along the length direction of the panel 22.

[0073] The cover body 15 has multiple ventilation openings so that the airflow generated by the outdoor unit can flow to the outside of the outdoor unit. In this embodiment, the shape, size and material of the cover body 15 are not limited. Optionally, the cover body 15 is configured as a rectangular sheet metal part, and the hanging frame 12 is fixed to the upper edge of the cover body 15.

[0074] Referring to Figures 6 and 7, in some embodiments of this application, the suspension frame 12 has a first receiving groove 122 on the side opposite to the cover body 15. The outdoor unit also includes multiple first connectors 40. Each first connector 40 includes a first force-applying part and a first connecting part that are connected to each other. The first connecting part passes through the bottom wall of the first receiving groove 122 through the suspension frame 12 and the suspension part 32 to fix the suspension frame 12 and the suspension part 32. The first force-applying part is located within the first receiving groove 122. After the first connector 40 connects the suspension frame 12 and the suspension part 32, the first force-applying part of the first connector 40 is located within the first receiving groove 122. The user will not be able to observe the first connector 40 from the front of the outdoor unit, thus improving the aesthetics of the outdoor unit.

[0075] To facilitate the assembly and disassembly of the mesh cover 10, the first connector 40 typically has a first force-applying portion for maintenance personnel to apply external force to the first connector 40. This first force-applying portion is usually exposed on the outside of the outdoor unit to allow maintenance personnel to apply external force, such as the head of a screw or stud, or the head of a rivet. To facilitate the disassembly of the mesh cover 10 and the pre-assembled component 30, in some embodiments of this application, the first connector 40 is configured as a screw. The threaded portion of the screw connects both the positioning frame 13 and the lateral positioning portion 52, while the screw head is located within the first receiving groove 122. Similarly, when the first connector 40 is configured as a rivet, the rivet head is located within the first receiving groove 122, while the rivet body connects both the positioning frame 13 and the lateral positioning portion 52.

[0076] Referring to Figures 2 and 8, in some embodiments of this application, the outdoor unit further includes a positioning member 50, which is arranged along the height direction of the panel 22 and installed on the first side 221 of the panel 22; the mesh cover 10 also includes a positioning frame 13, which is arranged along the height direction of the panel 22 and fixedly connected to the cover body 15, and the positioning frame 13 abuts against the positioning member 50. During the sliding process of the mesh cover 10 relative to the pre-installed component 30 along the length direction of the panel 22, the mesh cover 10 is aligned with the panel 22 after the positioning frame 13 abuts against the positioning member 50. At this time, the user can fix the pre-installed component 30 and the hanging frame 12 through the first connecting member 40.

[0077] The positioning element 50 is used to define the position of the mesh cover 10 relative to the panel 22. In this embodiment, the shape of the positioning element 50 is not limited, as long as the positioning element 50 abuts against the positioning frame 13 when the mesh cover 10 and the panel 22 are aligned.

[0078] The positioning frame 13 is used to protect the structure of the cover body 15. As the mesh cover 10 moves relative to the panel 22, the two sides of the mesh cover 10 distributed along the length direction of the panel 22 need to contact and connect with the positioning member 50. Therefore, the positioning frame 13 with stronger structural strength is provided to contact and connect with the positioning member 50 to protect the structure of the cover body 15.

[0079] Referring to Figure 2, in some embodiments of this application, there are two positioning elements 50, which are respectively arranged on the two sides of the panel 22 along the length direction; there are two positioning frames 13, which are fixed on the two sides of the mesh cover 10 along the length direction of the panel 22, and the positioning frames 13 abut against the corresponding positioning elements 50.

[0080] The two positioning elements 50 can more accurately position the mesh cover 10, and the two positioning elements 50 can be connected to the positioning frames 13 on both sides of the cover body 15 along the length of the panel 22.

[0081] In conjunction with the ventilation opening 151 provided on the cover body 15 for ventilation, in order to prevent the positioning frame 13 from affecting the ventilation performance of the cover body 15, in this embodiment of the application, when there is one positioning member 50 and one positioning frame 13, the positioning frame 13 is fixed to any side of the cover body 15 distributed along the length direction of the panel 22, and when there are two positioning frames 13, the positioning frames 13 are respectively fixed to both sides of the cover body 15 distributed along the length direction of the panel 22.

[0082] Referring to Figures 2 and 8, in some embodiments of this application, the positioning member 50 includes a second connecting part 51 and a lateral positioning part 52. The second connecting part 51 is fixedly connected to the panel 22. The lateral positioning part 52 is connected to the second connecting part 51 and extends away from the first side 221 along the thickness direction of the panel 22. The lateral positioning part 52 has a lateral positioning surface 521, which abuts against the positioning frame 13.

[0083] The second connecting part 51 is used to connect with the first side 221 of the panel 22 to achieve a fixed connection between the positioning member 50 and the panel 22. This application embodiment does not limit the connection method between the second connecting part 51 and the panel 22, such as bonding, bolting, welding, snap-fitting, etc. For example, referring to Figures 2 and 8, in some embodiments of this application, the panel 22 has a second snap-fit ​​interface 223, and the second connecting part 51 includes a second main body sub-part 5 and a second snap-fit ​​sub-part 512. The second main body sub-part 5 is connected to the transverse positioning part 52; the second snap-fit ​​sub-part 512 is connected to the second main body sub-part 5 and snap-fitted into the second snap-fit ​​interface 223, that is, the fixed connection between the second connecting part 51 and the panel 22 is achieved by snap-fitting. Of course, based on the snap-fitting of the second main body sub-part 5 and the panel 22, the second main body sub-part 5 and the panel 22 can still be further reinforced by bonding, connecting via connectors, welding, or snap-fitting. In this embodiment of the application, there can be multiple second card interfaces 223 and multiple second card connectors 512, and multiple second card interfaces 223 and multiple second card connectors 512 can be arranged along the height direction of the panel 22.

[0084] Referring to Figure 8, in some embodiments of this application, the second main body sub-part 5 includes a connecting section 5111, an extension section 5112, and a longitudinal limiting section 5113. The connecting section 5111 is disposed in contact with the first side surface 221 and connected to the second snap-fit ​​sub-part 512. The extension section 5112 is connected to the connecting section 5111 and extends away from the first side surface 221 along the thickness direction of the panel 22. The longitudinal limiting section 5113 is connected to the extension section 5112 and is disposed parallel to the first side surface 221. The side of the longitudinal limiting section 5113 away from the panel 22 is a longitudinal limiting surface. Multiple longitudinal limiting surfaces are flush along the thickness direction of the panel 22 and abut against the positioning frame 13.

[0085] The connecting segment 5111 is fitted to the first side 221, so that there is a larger contact area between the connecting segment 5111 and the panel 22. When the positioning member 50 is subjected to external force, the connecting segment 5111 exerts less pressure on the panel 22. When the second main body sub-part 5 is connected to the panel 22 by means of bonding, connection via connector, etc., the panel 22 is connected to the connecting segment 5111.

[0086] The longitudinal limiting section 5113 is used to limit the position of the mesh cover 10 in the thickness direction of the panel 22. After the mesh cover 10 abuts against the longitudinal limiting surface of the longitudinal limiting section 5113 in the thickness direction of the panel 22, the maintenance personnel can determine the position of the mesh cover 10 in the thickness direction of the panel 22.

[0087] In some embodiments of this application, the first main body sub-part 3 also includes a connecting section 5111, an extension section 5112, and a longitudinal limiting section 5113. In this case, the pre-installed part 30 and the two positioning parts 50 simultaneously position the mesh cover 10 in the thickness direction of the panel 22.

[0088] Referring to Figures 6 and 7, in some embodiments of this application, the positioning frame 13 has a second receiving groove 131 on the side away from the cover body 15. The outdoor unit also includes a plurality of second connectors 60. The second connectors 60 include a second force-applying part and a second connecting part that are connected to each other. The second connecting part passes through the bottom wall of the second receiving groove 131 through the positioning frame 13 and the lateral positioning part 52 to fix the positioning frame 13 and the positioning part 50. The second force-applying part is located in the second receiving groove 131.

[0089] Similarly, after the second connector 60 connects the positioning frame 13 and the lateral positioning part 52, the second force-applying part of the second connector 60 is located in the second receiving groove 131. The user will not be able to observe the second connector 60 from the front of the outdoor unit, which improves the aesthetics of the outdoor unit.

[0090] In this embodiment, the second connector 60 is the same as the first connector 40 in size, shape and material, and the second receiving groove 131 is the same as the first receiving groove 122 in structure, shape and size.

[0091] Referring to Figures 2 and 5, in some embodiments of this application, the housing 21 includes a main body 2 and a hinge 212. The main body 2 is fixedly connected to the panel 22, and the main body 2 and the panel 22 surround an electrical cavity 6. The main body 2 has a maintenance opening 24 communicating with the electrical cavity 6. The hinge 212 is rotatably connected to the main body 2 and can cover the maintenance opening 24.

[0092] The maintenance opening 24 is used for maintenance personnel to repair the internal parts of the outdoor unit. When the outdoor unit needs maintenance, the maintenance personnel can open the hinge 212 and then repair the internal parts of the outdoor unit through the maintenance opening 24 without disassembling the mesh cover 10 and the panel 22, which facilitates the maintenance of the outdoor unit. It can be understood that the larger the opening area of ​​the maintenance opening 24, the easier it is for maintenance personnel to repair the internal parts of the outdoor unit.

[0093] The hinge portion 212 is used to cover the maintenance opening 24 to improve the sealing performance of the outdoor unit in the working state. In the embodiments of this application, the shape and size of the hinge portion 212 are not limited. It can be understood that the shape and size of the hinge portion 212 should meet the requirement that the hinge portion 212 can cover the maintenance opening 24 to improve the sealing performance of the outdoor unit. Optionally, in some embodiments of this application, the main body portion 2 is fully open on both sides along the length direction of the panel 22 (without side panels) to form the maintenance opening 24, so that the opening area of ​​the maintenance opening 24 is larger. The hinge portion 212 is hinged to the main body portion 2 via a hinge.

[0094] In some embodiments of this application, the maintenance opening 24 is provided on any sidewall of the housing 21 distributed along the length of the panel 22.

[0095] It is understandable that the front of the outdoor unit is usually equipped with a mesh cover 10, and the rear of the outdoor unit is usually set against the wall after the outdoor unit is installed. The maintenance opening 24 is opened on any side wall of the housing 21 along the length of the panel 22, which makes reasonable use of the existing structure of the housing 21 and facilitates the maintenance of the outdoor unit.

[0096] In some embodiments of this application, there are two maintenance openings 24 and two hinges 212. The two maintenance openings 24 are respectively opened on two side walls of the housing 21 distributed along the length of the panel 22. The two hinges 212 are hinged to the main body 2 and can respectively cover the corresponding maintenance openings 24. At this time, maintenance personnel can perform maintenance on the outdoor unit through the two maintenance openings 24.

[0097] Please refer to Figures 10 and 11. The outdoor unit provided in this embodiment also includes a fan wheel (not shown in the figure). The mesh cover 10 has a first air outlet area 11 corresponding to the fan wheel. During the rotation of the fan wheel, the area swept by the orthographic projection of the fan wheel on the mesh cover 10 overlaps with the first air outlet area 11. The mesh cover 10 has a plurality of first air outlet openings 1121 in the first air outlet area 11. The ratio of the sum of the areas of the plurality of first air outlet openings 1121 to the area of ​​the first air outlet area 11 is S1, wherein 3 / 4≤S1≤7 / 8. For example, S1 is equal to 3 / 4, 4 / 5, 5 / 6, etc.

[0098] Based on the mesh cover 10 of this application embodiment, within this range, the first air outlet opening 1121 occupies a larger area of ​​the first air outlet region 11, which can reduce the obstruction of airflow by the mesh cover 10, that is, enhance the air outlet performance of the mesh cover 10, and make the mesh cover 10 have sufficient solid structure in the first air outlet region 11 to improve the structural strength of the mesh cover 10 in the first air outlet region 11.

[0099] The wind turbine in this embodiment is used to convert mechanical energy or electrical energy into wind energy to generate airflow. It is understood that the wind turbine in this embodiment is a horizontal axis wind turbine. The mesh cover 10 can be located on the low-pressure side or the high-pressure side of the wind turbine (when the mesh cover 10 is located on the low-pressure side of the wind turbine, the airflow direction is from the mesh cover 10 toward the wind turbine; when the mesh cover 10 is located on the high-pressure side of the wind turbine, the airflow direction is from the wind turbine toward the mesh cover 10), and is arranged perpendicular to the wind direction of the horizontal axis wind turbine. At this time, the airflow generated by the horizontal axis wind turbine will flow perpendicularly toward the mesh cover 10.

[0100] The mesh cover 10 is typically placed at the air inlet or outlet 23 of HVAC equipment that generates airflow to guide and homogenize the airflow generated by the HVAC equipment, and to protect users from damage to the internal components of the HVAC equipment. It is understood that the mesh cover 10 has a certain thickness, meaning it has a first side and a second side facing away from each other. Therefore, in this embodiment, the first air outlet opening 1121 has the same cross-section perpendicular to its own axis, and the sum of the cross-sections formed by the first air outlet opening 1121 within any cross-section perpendicular to the axis of the impeller of the mesh cover 10 accounts for the same percentage of the first air outlet area 11.

[0101] The first air outlet area 11 is used to guide and homogenize the airflow generated by the HVAC equipment. Since the shape of the area formed by the impeller during rotation is circular, in some embodiments of this application, the shape of the first air outlet area 11 is configured as circular corresponding to the shape formed by the rotation of the impeller; however, it is understood that the shape of the first air outlet area 11 can be arbitrarily set and is not limited to the above-mentioned circular shape.

[0102] During the rotation of the impeller, the area swept by the orthographic projection of the impeller onto the mesh cover 10 overlaps with the first air outlet area 11. This ensures that all airflow generated during the impeller's rotation can be received by the first air outlet area 11, thereby effectively improving airflow performance. For example, when the first air outlet area 11 is configured as a circle, its diameter is equal to the diameter of the impeller, and the two are coaxially arranged. In this case, the area of ​​the first air outlet area 11 is minimized while ensuring good ventilation of the mesh cover 10, thus reducing the processing area of ​​the first air outlet area 11.

[0103] The first air outlet 1121 is used to guide and homogenize the airflow in the first air outlet area 11. It can be understood that the percentage of the first air outlet 1121 in the first air outlet area 11 is determined by the density of the first air outlet 1121 (the density in this embodiment is a generalized density; specifically, in this embodiment, it refers to quantitative density, i.e., the number of first air outlets 1121 per unit area of ​​the first air outlet area 11) and the area of ​​the first air outlet area 11 occupied by a single first air outlet 1121.

[0104] It is understandable that when the density of the first air outlet 1121 is greater, the area occupied by a single first air outlet 1121 in the first air outlet area 11 is smaller, and the first air outlet area 11 has a better effect on the uniformity of airflow; when the density of the first air outlet 1121 is smaller, the area occupied by a single first air outlet 1121 in the first air outlet area 11 is larger, and the mesh cover 10 has less wind resistance to airflow at the first air outlet 1121.

[0105] To balance the airflow homogenization effect and airflow performance of the mesh cover 10 in the first air outlet area 11, in some embodiments of this application, the distance between the edge of the first air outlet opening 1121 and the edge of the adjacent first air outlet opening 1121 is M, 1mm≤M≤2mm, for example, M equals 1.2mm, 1.4mm, 1.6mm or 1.8mm, etc. The interval between the edges of the adjacent first air outlet openings 1121 is within this range, which limits the density of the first air outlet openings 1121, ensures the airflow homogenization effect of the mesh cover 10 in the first air outlet area 11, and provides sufficient solid structure between the adjacent first air outlet openings 1121 to improve the structural strength of the mesh cover 10 in the first air outlet area 11.

[0106] Meanwhile, in some embodiments of this application, the area of ​​the cross-section of the first air outlet 1121 perpendicular to its own axis is S, 95mm². 2 ≤S2≤227mm 2 For example, S equals 100mm 2 120mm 2 140mm 2 160mm 2 180mm 2 200mm 2 Or 220mm 2 The area of ​​the cross-section of the first air outlet 1121 perpendicular to its own axis is within this range, which improves the air outlet performance of the mesh cover 10 in the first air outlet area 11.

[0107] In some embodiments of this application, the first air outlet 1121 is configured as a circular through hole. In this case, the diameter of the first air outlet 1121 is D, 11mm≤D≤17mm, for example, D equals 12mm, 13mm, 14mm, 15mm or 16mm, etc. The circular through hole facilitates the processing of the first air outlet 1121.

[0108] In some embodiments of this application, the ratio of the dimension of the first air outlet region 11 in the length direction of the mesh cover 10 to the length of the mesh cover 10 is K, where 1 / 2 ≤ K ≤ 3 / 4. Within this range, the dimension of the first air outlet region 11 in the length direction of the mesh cover 10 is limited to a reasonable range, ensuring that the mesh cover 10 has sufficient air outlet range in its own length direction without making the dimension of the first air outlet region 11 in the length direction of the mesh cover 10 too large, which would cause the airflow through the mesh cover 10 to be too dispersed in the length direction of the mesh cover 10. The length direction of the mesh cover 10 is consistent with the length direction of the panel 22, which can be seen in the AA axis direction in Figures 1, 2, 5, 9, and 10.

[0109] In some embodiments of this application, the ratio of the height of the first air outlet region 11 to the height of the mesh cover 10 along its height direction is H, where 7 / 10 ≤ H ≤ 3 / 4. Within this range, the length of the first air outlet region 11 in the height direction of the mesh cover 10 is limited to a reasonable range, ensuring that the mesh cover 10 has sufficient air outlet range in its own height direction without making the height of the first air outlet region 11 too long in the height direction of the mesh cover 10, thus preventing the airflow through the mesh cover 10 from being too dispersed in the height direction of the mesh cover 10. The height direction of the mesh cover 10 is consistent with the height direction of the panel 22, which can be seen in the BB axis direction in Figures 1, 2, 5, 9, and 10.

[0110] In some embodiments of this application, adjacent first air outlet openings 1121 along the length direction of the mesh cover 10 are aligned, and adjacent first air outlet openings 1121 along the height direction of the mesh cover 10 are staggered, so that the first air outlet openings 1121 are evenly arranged in the first air outlet area 11, thereby improving the uniformity of airflow in the first air outlet area 11 by the mesh cover 10. It is understood that the first air outlet openings 1121 can be arranged in any way in the first air outlet area 1.

[0111] In some embodiments of this application, the first air outlet region 11 includes an air outlet sub-region 112 and a structural sub-region 111. The structural sub-region 111 overlaps at least partially with the hub of the wind turbine along the axial direction of the wind turbine. The air outlet sub-region 112 surrounds the periphery of the structural sub-region 111 and covers the blades of the wind turbine along the axial direction of the wind turbine. The first air outlet opening 1121 is arranged in the air outlet sub-region 112.

[0112] Furthermore, since the orthographic projection of the structural sub-region 111 along the axis of the wind turbine coincides with at least a portion of the hub of the wind turbine, and since the wind volume generated by the wind turbine at the hub position is extremely small, the structural sub-region 111 has little impact on the air outlet capacity of the mesh cover 10, but can significantly improve the structural strength of the mesh cover 10 in the first air outlet area 11; while the orthographic projection of the air outlet sub-region 112 along the axis of the wind turbine coincides with the blades of the wind turbine, but does not affect the air outlet capacity of the mesh cover 10 in the first air outlet area 11 at all.

[0113] It is understood that the structural sub-region 111 in this embodiment can be set to any shape, as long as the structural sub-region 111 overlaps with the hub of the wind turbine along the axis of the wind turbine, so as to ensure that the structural sub-region 111 does not affect the air outlet performance of the air outlet cover 10; at the same time, the structural sub-region 111 can also be used to attach labels, etc.

[0114] Given that the first air outlet area 11 is set to be circular, it can be understood that the air outlet sub-area 112 is set to be annular, with the outer contour of the air outlet sub-area 112 being circular and the inner contour corresponding to the structure sub-area 111.

[0115] In some embodiments of this application, the mesh cover 10 further has a second air outlet area 14 surrounding the first air outlet area 11. The mesh cover 10 has a plurality of second air outlet openings 141 in the second air outlet area 14, and the density of the first air outlet openings 1121 is greater than the density of the second air outlet openings 141.

[0116] In this embodiment of the application, the mesh cover 10 also has a plurality of third air outlet openings (not shown in the figure) that are simultaneously located in the first air outlet area 11 and the second air outlet area 14. The third air outlet opening can be exactly the same as the first air outlet opening 1121, or can be exactly the same as the adjacent second air outlet opening 141. For example, if most of the area of ​​the third air outlet opening is located in the first air outlet area 11, then the third air outlet opening can be exactly the same as the second air outlet opening 141.

[0117] It is understandable that the airflow is mainly homogenized and guided through the first air outlet area 11 of the mesh cover 10. However, after setting the second air outlet area 14 around the first air outlet area 11, the air outlet capacity of the mesh cover 10 can be further enhanced, and a small amount of airflow can be guided to the periphery. In addition, the further the second air outlet area 14 is from the axis of the impeller, the less airflow it can receive. Therefore, the mesh cover 10 still has a large air outlet demand in the second air outlet area 14 near the first air outlet area 11, and a large number of second air outlet openings 141 are required to ensure that the mesh cover 10 still has good air outlet performance in the second air outlet area 14 near the first air outlet area 11. The mesh cover 10 has a small or no air outlet demand in the second air outlet area 14 far from the first air outlet area 11, so fewer or no second air outlet openings 141 can be set, making the structure of the mesh cover 10 more reasonable and ensuring that the mesh cover 10 has good structural strength in its own edge area. The mesh cover 10 can then be fixed to the shell 21 through its own edge area.

[0118] Similarly, the above effect can also be achieved by reducing the area of ​​the cross-section of the second air outlet 141 perpendicular to its own axis. Therefore, in some embodiments of this application, the farther the second air outlet 141 is from the edge of the first air outlet region 11, the smaller the area of ​​the cross-section of the second air outlet 141 perpendicular to its own axis. Alternatively, both the density and the area of ​​the cross-section of the second air outlet 141 can be reduced simultaneously.

[0119] It should be noted that in this embodiment, the first air outlet area 11 coincides with the area occupied by the wind turbine when it rotates, along the axial direction of the wind turbine.

[0120] Furthermore, the housing 21 is provided with an air outlet 23, and the impeller is rotatably connected to the housing 21. The first air outlet area 11 coincides with the air outlet 23 along the axis of the impeller, and the air outlet 23 coincides with the impeller along the axis of the impeller. In some embodiments of this application, both the air outlet 23 and the first air outlet area 11 are configured as circles, and the air outlet 23, the first air outlet area 11, and the impeller are coaxially arranged, and the diameters of the air outlet 23, the first air outlet area 11, and the impeller are equal.

[0121] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0122] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An outdoor unit, wherein, include: Netting; A housing assembly, the housing assembly including a housing and a panel connected to each other, the panel being disposed opposite to the mesh cover, the panel having a first side facing the mesh cover; as well as, A pre-assembled component is mounted on the first side and arranged along the length of the panel. The mesh cover is slidably connected to the pre-assembled component so that the mesh cover can move relative to the panel along the length of the panel.

2. The outdoor unit as described in claim 1, wherein, The pre-assembled component includes a first connecting part, a hanging part, and a limiting part. The first connecting part is installed on the first side. The hanging part is connected to the first connecting part and extends toward the mesh cover along the thickness direction of the panel. The limiting part is connected to the hanging part and extends away from the first connecting part along the height direction of the panel. The mesh cover includes a cover body and a suspension frame. The suspension frame is fixed to the top of the cover body and has a limiting groove. The suspension frame is suspended from the suspension part. The limiting part is located within the limiting groove.

3. The outdoor unit as described in claim 2, wherein, The suspension portion extends along the length of the panel.

4. The outdoor unit as described in claim 2, wherein, The suspension frame has a first receiving groove on the side opposite to the cover body, and the outdoor unit also includes: A plurality of first connectors, each first connector including a first force-applying part and a first connecting part connected to each other, the first connecting part passing through the bottom wall of the first receiving groove through the suspension frame and the suspension part to fix the suspension frame and the suspension part; the first force-applying part is located in the first receiving groove.

5. The outdoor unit as described in claim 2, wherein, The panel has a first card interface, and the first connecting part includes: The first main body sub-part is connected to the suspension part; and The first card connector is connected to the first main body and is snapped into the first card interface.

6. The outdoor unit as described in any one of claims 1-5, wherein, The outdoor unit also includes a positioning component, which is arranged along the height direction of the panel and installed on the first side of the panel. The mesh cover includes a cover body and a positioning frame. The positioning frame is arranged along the height direction of the panel and is fixedly connected to the cover body. The positioning frame abuts against the positioning element.

7. The outdoor unit as described in claim 6, wherein, The number of positioning elements is two, and the two positioning elements are respectively arranged on both sides of the panel along the length direction; the number of positioning frames is two, and the two positioning frames are fixed on both sides of the mesh cover along the length direction of the panel, and the positioning frames abut against the corresponding positioning elements.

8. The outdoor unit as described in claim 6, wherein, The positioning element includes: The second connecting part is fixedly connected to the panel. A lateral positioning part is provided, which is connected to the second connecting part and extends away from the first side along the thickness direction of the panel. The lateral positioning part has a lateral positioning surface, which abuts against the positioning frame.

9. The outdoor unit as described in claim 8, wherein, The panel is provided with a second card interface, and the second connecting part includes: The second main body sub-part is connected to the lateral positioning part; and The second card connector is connected to the main body and is snapped into the second card interface.

10. The outdoor unit as described in claim 9, wherein, The second main body sub-part includes: The connecting segment is fitted to the first side and connected to the second snap-fit ​​part; An extension segment, connected to the connecting segment, extends away from the first side along the thickness direction of the panel; and A longitudinal limiting segment is connected to the extension segment and is arranged parallel to the first side. The side of the longitudinal limiting segment away from the panel is a longitudinal limiting surface. Multiple longitudinal limiting surfaces are flush with the thickness direction of the panel and abut against the positioning frame.

11. The outdoor unit as described in claim 8, wherein, Each of the positioning frames has a second receiving groove on the side opposite to the cover body, and the outdoor unit also includes: Multiple second connectors, each second connector including a second force-applying part and a second connecting part connected to each other, the second connecting part passing through the bottom wall of the second receiving groove through the positioning frame and the lateral positioning part to fix the positioning frame and the positioning member; the second force-applying part is located in the second receiving groove.

12. The outdoor unit as described in any one of claims 1-5 and 7-11, wherein, It also includes a wind turbine, and the mesh cover has a first air outlet area corresponding to the wind turbine. During the rotation of the wind turbine, the area swept by the orthographic projection of the wind turbine on the mesh cover overlaps with the first air outlet area. The mesh cover has multiple first air outlet openings in the first air outlet area. The ratio of the sum of the areas of the multiple first air outlet openings to the area of ​​the first air outlet area is S1, where 3 / 4≤S1≤7 / 8.

13. The outdoor unit as described in claim 12, wherein, The distance between the edge of the first air outlet and the edge of the adjacent first air outlet is M, where 1mm ≤ M ≤ 2mm.

14. The outdoor unit as described in claim 12, wherein, The ratio of the dimension of the first air outlet area in the length direction of the mesh cover to the length of the mesh cover is K, where 1 / 2 ≤ K ≤ 3 / 4.

15. The outdoor unit as described in claim 12, wherein, The ratio of the height of the first air outlet area in the height direction of the mesh cover to the height of the mesh cover is H, where 7 / 10 ≤ H ≤ 3 / 4.

16. The outdoor unit as described in claim 12, wherein, The mesh cover is aligned with the first air outlet along its length and staggered along its height.

17. The outdoor unit as described in claim 16, wherein, The first air outlet area includes: A structural sub-region, which overlaps with the hub of the wind turbine along the axial direction of the wind turbine; and, The air outlet sub-area surrounds the periphery of the structural sub-area. The air outlet sub-area overlaps with the area occupied by the wind turbine blades when the wind turbine rotates along the axial direction of the wind turbine. The first air outlet opening is arranged in the air outlet sub-area.

18. The outdoor unit as described in any one of claims 13-17, wherein, The mesh cover also has a second air outlet area surrounding the first air outlet area. The mesh cover has multiple second air outlet openings in the second air outlet area, and the density of the first air outlet openings is greater than the density of the second air outlet openings.

19. The outdoor unit as described in claim 18, wherein, The farther the second air outlet is from the edge of the first air outlet area, the smaller the cross-sectional area of ​​a single second air outlet.

20. The outdoor unit as described in any one of claims 13-17 and 19, wherein, The housing has an air outlet; The first air outlet area is projected onto the air outlet along the axial direction of the air outlet.

21. The outdoor unit as described in claim 1, wherein, The housing includes: The main body is fixedly connected to the panel and surrounds an electrical cavity with the panel. The main body has a maintenance opening communicating with the electrical cavity. A hinge portion is rotatably connected to the main body portion and is capable of sealing the maintenance opening.

22. The outdoor unit as described in claim 21, wherein, The maintenance opening is located on any side wall of the housing distributed along the length of the panel.

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