An installation structure of a mesh cover and an air conditioner

Abstract

The present invention provides an installation structure for a mesh cover, which includes a mesh cover body and a top cover plate. The mesh cover body is installed on the top cover plate through a connecting member. An extension part is provided on the mesh cover body, and an extension mating part is provided on the top cover plate. The extension part is arranged above the extension mating part, and the extension part is displaced relative to the extension mating part for being arranged in a fitting or separated manner with the extension mating part. For the installation structure of the mesh cover according to the present invention, firstly, when no external force is applied, the extension part and the extension mating part are separated, reducing the contact noise between the mesh cover and the top cover plate and preventing abrasion; secondly, when an external force is applied, the extension part and the extension mating part are fitted, and the extension mating part generates an upward bearing capacity for the extension part, increasing the strength of the mesh cover and preventing the mesh cover from being deformed excessively and scraping against the wind blade to damage the wind blade; thirdly, the use of the connecting member is reduced, improving the installation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of air conditioners, and more particularly, to an installation structure of a grille and an air conditioner. Background Art

[0002] At present, the wire mesh grille is commonly used to protect the fan blades of the top-outlet air conditioner outdoor unit. However, the wire mesh grille has low stiffness itself. After a long time, the grille will deform and collapse, which will even affect the normal operation of the fan blades, lose the function of protecting the fan blades, and even damage the blades (at this time, the projection of the grille on the chassis does not coincide with the cover plate). When the grille contacts the top cover plate surface, although the collapse does not affect the operation of the fan blades, it will cause a relatively large contact noise between the grille and the cover plate surface (at this time, the projection of the grille on the chassis coincides with the cover plate).

[0003] At present, although the relatively many connecting pieces used for installing the grille of the outdoor unit can ensure the strength, the assembly efficiency is low, and the contact noise between the grille and the top cover plate is relatively large; although using fewer connecting pieces for installing the grille improves the assembly efficiency and reduces the contact noise between the grille and the top cover plate, the strength of the grille is relatively poor, and the grille is easily deformed under force.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] The object of the present invention is to provide an installation structure of a grille and an air conditioner to solve the problems in the prior art that although using relatively many connecting pieces for installing the grille of the outdoor unit can ensure the strength, the assembly efficiency is low, and the contact noise between the grille and the top cover plate is relatively large; although using fewer connecting pieces for installing the grille improves the assembly efficiency and reduces the contact noise between the grille and the top cover plate, the strength of the grille is relatively poor, and the grille is easily deformed under force.

[0006] To achieve the above object, the technical solution of the present invention is realized as follows:

[0007] An installation structure of a grille, the installation structure of the grille includes a grille body and a top cover plate. The grille body is installed on the top cover plate through a connecting piece. An extension part is provided on the grille body, and an extension matching part is provided on the top cover plate. The extension part is arranged above the extension matching part, and the extension part is displaced relative to the extension matching part for being attached to or separated from the extension matching part.

[0008] An installation structure of a wire mesh cover according to this embodiment. First, when no external force is applied, the extension part and the extension mating part are separated, reducing the contact noise between the wire mesh cover and the top cover plate and preventing wear. Second, when an external force is applied, the extension part and the extension mating part are in contact, and the extension mating part generates an upward bearing force on the extension part, increasing the strength of the wire mesh cover, preventing excessive deformation of the wire mesh cover from scraping against the wind blade and damaging the wind blade, and improving the installability. Third, the arrangement of the extension part and the extension mating part reduces the use of connecting parts and improves the installation efficiency.

[0009] Further, the extension part and the extension mating part are separated, and the separation distance D between the extension part and the extension mating part satisfies: D≥3mm.

[0010] This setting can ensure that when no external force is applied, the contact noise between the wire mesh cover and the top cover plate is reduced and wear is prevented.

[0011] Further, the extension part and the extension mating part are in contact, and the contact length L between the extension part and the extension mating part satisfies: 30mm≤L≤40mm.

[0012] This setting can ensure that when an external force is applied, the extension mating part generates an upward bearing force on the extension part, increasing the strength of the wire mesh cover, preventing excessive deformation of the wire mesh cover from scraping against the wind blade and damaging the wind blade, and improving the installability.

[0013] Further, the extension part includes an extension body section and an inclined connection section. One end of the inclined connection section is connected to the extension body section, and the other end of the inclined connection section is connected to the wire mesh cover body.

[0014] This setting can ensure that when no external force is applied, the extension part and the extension mating part are separated, reducing the contact noise between the wire mesh cover and the top cover plate and preventing wear.

[0015] Further, the end of the inclined connection section connected to the extension body section extends upward and away from the center plate of the wire mesh cover body, and the angle α between the inclined connection section and the wire mesh cover body satisfies: 147°≤α≤153°.

[0016] This setting makes the separation distance between the extension part and the extension mating part most appropriate when no external force is applied. On the one hand, it can ensure that when no external force is applied, the extension part and the extension mating part are separated, reducing the contact noise between the wire mesh cover and the top cover plate and preventing wear. On the other hand, it can ensure that the strength of the wire mesh cover is increased when an external force is applied.

[0017] Further, the extension mating part is arranged as a groove.

[0018] This setting has the following advantages: First, it can position and install the extension part, improving the installation efficiency. Second, it further increases the distance from the extension part, further reducing the contact noise between the mesh cover and the top cover plate and preventing wear. Third, the groove positions the extension part, enhancing the strength of the installation structure.

[0019] Furthermore, main ribs are provided on the mesh cover body, and the main ribs are evenly distributed in a circumferential manner on the mesh cover body. One end of the main rib is connected to the central plate, and a first mounting hole is provided at the other end of the main rib. A second mounting hole is provided on the top cover plate, and the first mounting hole, the second mounting hole, and the connecting member cooperate with each other.

[0020] This setting facilitates the connecting member to sequentially pass through the first mounting hole and the second mounting hole to connect the mesh cover and the top cover plate, improving the installation efficiency. On the other hand, it can enhance the installation strength between the mesh cover and the top cover plate.

[0021] Furthermore, a first strengthening structure is provided between two adjacent main ribs, and the extension part is provided on the first strengthening structure.

[0022] This setting can form more stress points between the main ribs on the mesh cover, further strengthening the strength of the installation structure.

[0023] Furthermore, the first strengthening structure is evenly distributed between two adjacent main ribs. The first strengthening structure includes a first reinforcing rib and a second reinforcing rib. The first reinforcing rib is provided on the angular bisector between two adjacent main ribs, and the second reinforcing rib is provided on the angular bisector between the first reinforcing rib and the main rib. The extension part is provided on the first reinforcing rib.

[0024] This setting enables the stress points of the extension part and the stress points of the main rib to be evenly distributed on the mesh cover, further enhancing the strength of the installation structure. On the other hand, it can also improve the overall aesthetics of the mesh cover.

[0025] In the second aspect of the present invention, an air conditioner is proposed, and the air conditioner uses the installation structure of a mesh cover according to any one of the above.

[0026] Compared with the prior art, for the installation structure of a mesh cover according to the present invention, first, when no external force is applied, the extension part and the extension mating part are separated, reducing the contact noise between the mesh cover and the top cover plate and preventing wear. Second, when an external force is applied, the extension part and the extension mating part are in a fitting state, and the extension mating part generates an upward bearing force on the extension part, increasing the strength of the mesh cover, preventing the mesh cover from deforming excessively and rubbing against the fan blade, damaging the fan blade, and improving the installability. Third, the settings of the extension part and the extension mating part reduce the use of connecting members and improve the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic assembly three-dimensional structure diagram of an installation structure of a mesh cover according to an embodiment of the present invention;

[0028] Figure 2 is Figure 1 Enlarged structure diagram of part A in

[0029] Figure 3 Schematic top view structure diagram of an installation structure of a mesh cover according to an embodiment of the present invention;

[0030] Figure 4 is Figure 3 Enlarged structure diagram of part A in

[0031] Figure 5 Schematic top view structure diagram of a mesh cover body of an installation structure of a mesh cover according to an embodiment of the present invention;

[0032] Figure 6 Schematic front view structure diagram of a mesh cover body of an installation structure of a mesh cover according to an embodiment of the present invention;

[0033] Figure 7 is Figure 6 Enlarged structure diagram of part A in

[0034] Explanation of reference numerals:

[0035] 1. Mesh cover body; 11. First installation hole; 12. Extension part; 121. Extension body section; 122. Inclined connection section; 13. Central plate; 14. Main rib; 15. Reinforcement device; 151. First reinforcement structure; 1511. First reinforcement rib; 1512. Second reinforcement rib; 152. Second reinforcement structure; 1521. Third reinforcement rib; 16. Cover body rib; 2. Top cover plate; 21. Second installation hole; 22. Extension fitting part; 23. Third installation hole; 3. Connecting piece. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. In the embodiments of the present invention, the descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] Embodiment 1

[0039] This embodiment provides an installation structure for a mesh cover. As Figures 1-7 shown, the installation structure of the mesh cover includes a mesh cover body 1 and a top cover plate 2. The mesh cover body 1 is installed on the top cover plate 2 through a connecting member 3. As Figure 2 shown, an extension portion 12 is provided on the mesh cover body 1, and an extension mating portion 22 is provided on the top cover plate 2. The extension portion 12 is disposed above the extension mating portion 22. The extension portion 12 can displace relative to the extension mating portion 22, and the extension portion 12 is used to be attached to or separated from the extension mating portion 22.

[0040] For the installation structure of the mesh cover in this embodiment, first, when no external force is applied, the extension portion 12 is separated from the extension mating portion 22, reducing the contact noise between the mesh cover and the top cover plate 2 and preventing wear. Second, when an external force is applied, the extension portion 12 is attached to the extension mating portion 22, and the extension mating portion 22 generates an upward bearing force on the extension portion 12, increasing the strength of the mesh cover, preventing the mesh cover from deforming excessively and scraping against the wind blade, damaging the wind blade, and improving the installability. Third, the arrangement of the extension portion 12 and the extension mating portion 22 reduces the use of the connecting member 3 and improves the installation efficiency.

[0041] Specifically, the extension portion 12 is separated from the extension mating portion 22, and the separation distance D between the extension portion 12 and the extension mating portion 22 is not limited.

[0042] More specifically, the separation distance D between the extension portion 12 and the extension mating portion 22 satisfies: D≥3mm.

[0043] This setting can ensure that when no external force is applied, the contact noise between the mesh cover and the top cover plate 2 is reduced and wear is prevented.

[0044] Preferably, in this embodiment, the value of the separation distance D between the extension portion 12 and the extension mating portion 22 is 3mm.

[0045] This setting has the best effect of reducing the contact noise between the mesh cover and the top cover plate 2 and the best effect of preventing wear when no external force is applied.

[0046] Specifically, the extension portion 12 is attached to the extension mating portion 22, and the attachment length L between the extension portion 12 and the extension mating portion 22 is not limited.

[0047] More specifically, the attachment length L between the extension portion 12 and the extension mating portion 22 satisfies: 30mm≤L≤40mm.

[0048] This setting can ensure that when an external force is applied, the extension mating part 22 generates an upward bearing capacity on the extension part 12, increasing the strength of the mesh cover, preventing the mesh cover from deforming excessively and scraping against the wind blade, damaging the wind blade, and improving the installability.

[0049] Preferably, in this embodiment, the fitting length L between the extension part 12 and the extension mating part 22 is 35 mm.

[0050] This setting can ensure that when an external force is applied, the extension mating part 22 generates the maximum upward bearing capacity on the extension part 12, and the effect of increasing the strength of the mesh cover is optimal.

[0051] Specifically, the extension part 12 includes an extension body segment 121 and an inclined connection segment 122. One end of the inclined connection segment 122 is connected to the extension body segment 121, and the other end of the inclined connection segment 122 is connected to the mesh cover body 1.

[0052] This setting can ensure that the extension part 12 and the extension mating part 22 are separated when no external force is applied, reducing the contact noise between the mesh cover and the top cover plate 2 and preventing wear.

[0053] Specifically, one end of the inclined connection segment 122 connected to the extension body segment 121 extends upward and away from the center plate 13 of the mesh cover body 1. The angle α between the inclined connection segment 122 and the mesh cover body 1 satisfies: 147° ≤ α ≤ 153°.

[0054] This setting makes the separation distance between the extension part 12 and the extension mating part 22 appropriate when no external force is applied. On the one hand, it can ensure that the extension part 12 and the extension mating part 22 are separated when no external force is applied, with a better effect of reducing the contact noise between the mesh cover and the top cover plate 2 and preventing wear; on the other hand, it can ensure that the strength of the mesh cover is good when an external force is applied.

[0055] Preferably, in this embodiment, the angle α between the inclined connection segment 122 and the mesh cover body 1 is 150°. This setting makes the separation distance between the extension part 12 and the extension mating part 22 the most appropriate when no external force is applied. On the one hand, it can further ensure that the extension part 12 and the extension mating part 22 are separated when no external force is applied, with the best effect of reducing the contact noise between the mesh cover and the top cover plate 2; on the other hand, it can ensure that the strength of the mesh cover is the best when an external force is applied.

[0056] Specifically, the extension body segment 121 and the mesh cover body 1 can be arranged in parallel, or the extension body segment 121 and the mesh cover body 1 can be arranged obliquely, and no specific limitation is made.

[0057] Preferably, the extension body section 121 is arranged parallel to the mesh cover body 1. This arrangement can ensure that when no external force is applied, the separation distance between the extension body section 121 and the extension mating part 22 is appropriate and equal everywhere, reducing the contact noise between the mesh cover and the top cover plate 2 and preventing wear.

[0058] Specifically, there are no restrictions on the extension mating part 22. The extension mating part 22 is arranged as a groove or a protrusion, etc.

[0059] Preferably, in this embodiment, the extension mating part 22 is arranged as a groove.

[0060] This arrangement: First, can position and install the extension part 12, improving the installation efficiency; Second, further increases the distance between the extension part 12, further reducing the contact noise between the mesh cover and the top cover plate 2 and preventing wear; Third, the groove plays a role in limiting the extension part 12, improving the strength of the installation structure.

[0061] Specifically, main ribs 14 are arranged on the mesh cover body 1, and the main ribs 14 are evenly distributed in a circumferential manner on the mesh cover body 1. One end of the main rib 14 is connected to the center plate 13, and a first mounting hole 11 is arranged at the other end of the main rib 14. A second mounting hole 21 is arranged on the top cover plate 2, and the first mounting hole 11, the second mounting hole 21 and the connecting piece 3 cooperate with each other.

[0062] This arrangement: On the one hand, it is convenient for the connecting piece 3 to sequentially pass through the first mounting hole 11 and the second mounting hole 21 to connect the mesh cover and the top cover plate 2, improving the installation efficiency; on the other hand, it can improve the installation strength and the balance of the installation structure between the mesh cover and the top cover plate 2.

[0063] Specifically, as Figure 5 shown, the main rib 14 is arranged in the radial direction of the mesh cover body 1, and the main rib 14 is evenly distributed in a circumferential manner with the center plate 13 as the center. This arrangement can improve the installation strength and the balance of the installation structure between the mesh cover and the top cover plate 2.

[0064] Specifically, the shape of the mesh cover body 1 is not specifically limited. The shape of the mesh cover body 1 can be circular, and the shape of the mesh cover body 1 can also be square.

[0065] More specifically, in this embodiment, preferably, as Figure 1 、 Figure 3 and Figure 5 shown, the shape of the mesh cover body 1 is circular. This arrangement is convenient for matching with the fan installed below the mesh cover body 1, which can not only ensure the air outlet effect but also ensure the installation strength.

[0066] Specifically, rib strips 16 are provided on the mesh cover body 1. A plurality of rib strips 16 are provided, and the plurality of rib strips 16 are arranged in a ring shape. The plurality of rib strips 16 are located on the inner side in the radial direction of the mesh cover body 1. The plurality of rib strips 16 are arranged at intervals in the radial direction of the mesh cover body 1, and the rib strips 16 are connected to the main ribs 14.

[0067] Specifically, the number of the main ribs 14 is not limited.

[0068] Specifically, the number of the main ribs 14 is set to be less than six. The number of the main ribs 14 can be set to two, three, four or five.

[0069] This setting can reduce the number of connecting members 3 while ensuring the installation strength, and improve the installation efficiency.

[0070] More specifically, preferably, in this embodiment, as Figure 5 shown, the number of the main ribs 14 can be set to three.

[0071] On the one hand, the three main ribs 14 are arranged in a triangle on the mesh cover, which further improves the structural strength of the mesh cover and ensures the strength of the installation structure; on the other hand, the number of connecting members 3 is reduced, and the installation efficiency is improved.

[0072] Specifically, the position where the main ribs 14 are provided on the mesh cover body 1 is not limited.

[0073] The main ribs 14 are provided on the upper side and / or the lower side of the mesh cover body 1.

[0074] Preferably, in this embodiment, as Figure 2 and Figure 7 shown, the main ribs 14 are provided on the lower side of the mesh cover body 1. This setting can further improve the strength of the mesh cover.

[0075] Specifically, as Figure 4 shown, a reinforcing device 15 is provided on the mesh cover body 1, and the reinforcing device 15 includes a first reinforcing structure 151 and a second reinforcing structure 152.

[0076] Specifically, the position where the first reinforcing structure 151 is provided on the mesh cover body 1 is not limited.

[0077] The first reinforcing structure 151 is provided on the upper side and / or the lower side of the mesh cover body 1.

[0078] Preferably, in this embodiment, as Figure 2 and Figure 7As shown, the first strengthening structure 151 is arranged on the lower side of the mesh cover body 1. This arrangement can, on the one hand, further improve the strength of the mesh cover; on the other hand, the first strengthening structure 151 and the main ribs 14 are arranged on the same side, resulting in a better wind guiding effect, increasing the wind speed and pressure at the air outlet, and making the wind beam more concentrated, which significantly improves the situation of the unit in harsh air inlet and outlet conditions.

[0079] Specifically, as Figure 4 and Figure 5 shown, a second strengthening structure 152 is arranged on the outer side of the mesh cover body 1.

[0080] Specifically, the second strengthening structure 152 is not specifically limited.

[0081] More specifically, as Figure 4 and Figure 5 shown, the second strengthening structure 152 is arranged as a third strengthening rib 1521. The third strengthening rib 1521 is arranged on the outer side of the mesh cover body 1.

[0082] Specifically, as Figure 5 shown, a first strengthening structure 151 is arranged between two adjacent main ribs 14, and the extension part 12 is arranged on the first strengthening structure 151.

[0083] This arrangement can form more stress points between the main ribs 14 on the mesh cover, further strengthening the strength of the installation structure.

[0084] Specifically, the first strengthening structure 151 is evenly distributed between two adjacent main ribs 14. The first strengthening structure 151 includes a first strengthening rib 1511 and a second strengthening rib 1512. The first strengthening rib 1511 is arranged on the angular bisector of two adjacent main ribs 14, the second strengthening rib 1512 is arranged on the angular bisector of the first strengthening rib 1511 and the main rib 14, and the extension part 12 is arranged on the first strengthening rib 1511.

[0085] This arrangement makes the stress points of the extension part 12 and the main rib 14 evenly distributed on the mesh cover, further improving the strength of the installation structure.

[0086] Specifically, as Figure 3 shown, a third installation hole 23 is arranged on the top cover plate 2, and the mesh cover body 1 is matched with the third installation hole 23.

[0087] For the installation structure of the mesh cover, in addition to including the mesh cover body 1 and the top cover plate 2, it also includes other related components. Since the specific structures and specific assembly relationships of the related components are all prior arts, they will not be elaborated here.

[0088] In this embodiment, when the mesh cover body 1 and the top cover plate 2 are installed, first place the mesh cover body 1 on the third installation hole 23, and then rotate the mesh cover body 1 so that the position of the extension part 12 corresponds to the position of the extension mating part 22, and make the position of the first installation hole 11 correspond to the position of the second installation hole 21; finally, pass the connecting piece 3 through the first installation hole 11 and the second installation hole 21 to fix the mesh cover body 1 on the top cover plate 2.

[0089] For the installation structure of a mesh cover described in this embodiment, first, when no external force is applied, the extension part 12 and the extension mating part 22 are separated, reducing the contact noise between the mesh cover and the top cover plate 2 and preventing wear; second, when an external force is applied, the extension part 12 and the extension mating part 22 are in contact, and the extension mating part 22 generates an upward bearing force on the extension part 12, increasing the strength of the mesh cover, preventing the mesh cover from deforming excessively and rubbing against the fan blade, damaging the fan blade, and improving the installability; third, the arrangement of the extension part 12 and the extension mating part 22 reduces the use of the connecting piece 3 and improves the installation efficiency.

[0090] Embodiment 2

[0091] This embodiment provides an air conditioner, and the air conditioner uses the installation structure of a mesh cover described in any one of Embodiments 1.

[0092] For the air conditioner, in addition to including the installation structure of the mesh cover, it also includes other related components such as a compressor. Since the specific structures and specific assembly relationships of its related components are all prior arts, they will not be elaborated here.

[0093] The advantages of the air conditioner and the installation structure of the mesh cover relative to the prior art are the same and will not be elaborated here.

[0094] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope defined by the claims.

Claims

1. An installation structure of a mesh cover, the installation structure of the mesh cover comprising a mesh cover body (1) and a top cover plate (2), and the mesh cover body (1) is installed on the top cover plate (2) through a connecting member (3), characterized in that, An extension part (12) is provided on the wire mesh cover body (1), and an extension mating part (22) is provided on the top cover plate (2). The extension part (12) is arranged above the extension mating part (22), and the extension part (12) is displaced relative to the extension mating part (22) for being attached to or separated from the extension mating part (22). The extension part (12) includes an extension body segment (121) and an inclined connection segment (122). One end of the inclined connection segment (122) is connected to the extension body segment (121), and the other end of the inclined connection segment (122) is connected to the wire mesh cover body (1). The extension mating part (22) is arranged as a groove. Main ribs (14) are provided on the wire mesh cover body (1). A first strengthening structure (151) is provided between two adjacent main ribs (14), and the extension part (12) is provided on the first strengthening structure (151). Cover body ribs (16) are provided on the wire mesh cover body (1). A plurality of the cover body ribs (16) are provided, and the plurality of cover body ribs (16) are arranged in a ring shape.

2. The installation structure of a wire mesh cover according to claim 1, characterized in that, The extension part (12) is separated from the extension mating part (22), and the separation distance D between the extension part (12) and the extension mating part (22) satisfies: D≥3mm.

3. The installation structure of a wire mesh cover according to claim 1, characterized in that, The extension part (12) is attached to the extension mating part (22), and the attachment length L between the extension part (12) and the extension mating part (22) satisfies: 30mm≤L≤40mm.

4. The installation structure of a wire mesh cover according to claim 1, characterized in that, The end of the inclined connection segment (122) connected to the extension body segment (121) extends upward and away from the center plate (13) of the wire mesh cover body (1). The angle α between the inclined connection segment (122) and the wire mesh cover body (1) satisfies: 147°≤α≤153°.

5. The installation structure of a wire mesh cover according to claim 1, characterized in that, The main ribs (14) are evenly distributed in a circumferential manner on the wire mesh cover body (1). One end of the main rib (14) is connected to the center plate (13), and a first mounting hole (11) is provided at the other end of the main rib (14). A second mounting hole (21) is provided on the top cover plate (2), and the first mounting hole (11), the second mounting hole (21), and the connecting member (3) cooperate with each other.

6. The installation structure of a wire mesh cover according to claim 1, characterized in that, The first strengthening structures (151) are evenly distributed between two adjacent main ribs (14). The first strengthening structure (151) includes a first strengthening rib (1511) and a second strengthening rib (1512). The first strengthening rib (1511) is arranged on the angular bisector between two adjacent main ribs (14), and the second strengthening rib (1512) is arranged on the angular bisector between the first strengthening rib (1511) and the main rib (14). The extension part (12) is provided on the first strengthening rib (1511).

7. An air conditioner, characterized in that, The air conditioner uses an installation structure of a wire mesh cover according to any one of claims 1 to 6.

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