Fan mechanism and air conditioner outdoor unit

Abstract

The invention discloses a draught fan mechanism which comprises draught fans and draught fan supports, and the draught fans are connected to the two adjacent draught fan supports. The cross section of the fan support is of a C-shaped groove structure, the fan support comprises a first top plate, a first side plate and a first bottom plate which are of an integrated structure, the first top plate comprises a fan connecting section and an end connecting section, and the spacing distance between the fan connecting section and the first bottom plate is larger than the spacing distance between the end connecting section and the first bottom plate. The first side plate is provided with a protruding pressing rib. According to the draught fan mechanism, the requirement for supporting stability of the draught fan is met, reliable supporting of the draught fan is guaranteed, the structure is simple, the size is small, and the machining cost is low. The invention further discloses the air conditioner outdoor unit.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner outdoor units, and particularly relates to a fan mechanism and an air conditioner outdoor unit. Background Art

[0002] In air conditioner outdoor unit products, especially in large-capacity shell products of top-blowing outdoor units, the whole machine has a large demand for air volume. The fan of the air conditioner outdoor unit is fixed on the fan bracket, and the fan drives the fan to rotate to perform heat exchange on the evaporator or condenser of the air conditioner outdoor unit. The fan bracket needs to have sufficient strength to support and fix the air supply components such as the fan and the fan, as well as other components associated with the outdoor unit, so as to ensure the reliability and stability of the operation of the outdoor unit. During the stress process, the fan bracket is prone to deformation and cracking, and it is necessary to add a reinforcing iron bracket for reinforcement, resulting in a large number of components, high mold opening costs, and complex production.

[0003] In the prior art, the fan mechanism, such as Figure 1 shown, includes a cross beam 01, a fan 02 and a fan bracket 03. The fan bracket 03 is of an integral structure. The fan bracket 03 is a relatively large structural member, with a large volume, a large amount of raw material required for the plate, corresponding high mold opening costs, a relatively large volume of the mold, and the need for large-tonnage equipment to process, resulting in high costs. Summary of the Invention

[0004] In view of this, the present invention provides a fan mechanism, which meets the requirements of the support stability of the fan, ensures the reliable support of the fan, has a simple structure, a small volume, and low processing costs.

[0005] The present invention also provides an air conditioner outdoor unit.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fan mechanism includes a fan and a fan bracket, and the fan is connected to two adjacent fan brackets;

[0008] The cross-section of the fan bracket is a C-shaped groove structure, including an integrally formed first top plate, a first side plate and a first bottom plate. The first top plate includes a fan connection section and an end connection section. The distance between the fan connection section and the first bottom plate is greater than the distance between the end connection section and the first bottom plate. A raised rib is provided on the first side plate.

[0009] Optionally, the raised rib is arranged parallel to the first bottom plate, the length of the raised rib is not less than the length of the fan connection section, and the setting position of the raised rib corresponds to the setting position of the fan connection section;

[0010] The raised rib protrudes into the groove cavity of the fan bracket.

[0011] Optionally, a wind guiding flange is provided at the bottom of the fan bracket. The length direction of the wind guiding flange extends along the length direction of the fan bracket, and the wind guiding flange is inclined from the windward side to the leeward side in the width direction;

[0012] The wind guiding flange is connected to a side of the first bottom plate away from the first side plate.

[0013] Optionally, the groove openings of the two fan brackets for supporting the same fan are arranged with their openings facing away from each other.

[0014] Optionally, first connection end plates are provided at both ends of the first top plate, and the first connection end plates are formed by bending the ends of the first top plate;

[0015] Second connection end plates are provided at both ends of the first bottom plate, and the second connection end plates are formed by bending the ends of the first bottom plate. The second connection end plates are attached to the outer sides of the first connection end plates.

[0016] Optionally, a first connection through hole for connecting the fan is provided on the first top plate, a second connection through hole for connecting with the second connection end plate is provided on the first connection end plate, a third connection through hole for connecting with the first connection end plate is provided on the second connection end plate, and the second connection through hole and the third connection through hole are arranged correspondingly.

[0017] Optionally, the fan mechanism further includes a first cross beam and a second cross beam. One end of the fan bracket is connected to the first cross beam, and the other end is connected to the second cross beam;

[0018] The fan bracket, the first cross beam and the second cross beam are all integrally formed by sheet metal;

[0019] The cross sections of the first cross beam and the second cross beam are both C-shaped grooves;

[0020] The first cross beam includes a second top plate, second side plates and a second bottom plate which are of an integral structure, and the width of the second top plate is smaller than the width of the second bottom plate;

[0021] The second cross beam includes a third top plate, third side plates and a third bottom plate which are of an integral structure, and the width of the third top plate is smaller than the width of the third bottom plate;

[0022] The groove openings of the first cross beam and the second cross beam are arranged opposite to each other.

[0023] Optionally, a first flanging limiting hole for limiting the fan bracket is provided on the second bottom plate, and a second flanging limiting hole for limiting the fan bracket is provided on the third bottom plate. The first flanging limiting hole and the second flanging limiting hole are arranged staggeredly, and the fan bracket is arranged between the first flanging limiting hole and the second flanging limiting hole.

[0024] Optionally, a first claw is provided at a position near the end of the second side plate. The first claw is used to cooperate with a first clamping hole on the support frame of the air conditioner outdoor unit, and the first claw is hooked in the first clamping hole.

[0025] A fourth connection through hole for connecting with the support frame is provided on the upper part and / or the lower part of the first claw.

[0026] A second claw is provided at a position near the end of the third side plate. The second claw is used to cooperate with a second clamping hole on the support frame of the air conditioner outdoor unit, and the second claw is hooked in the second clamping hole.

[0027] A fifth connection through hole for connecting with the support frame is provided on the upper part and / or the lower part of the second claw.

[0028] It can be seen from the above technical solutions that the fan mechanism provided by the present invention includes a fan and a fan bracket. The fan bracket includes an integrally formed first top plate, first side plate, and first bottom plate. The height of the position where the first top plate is used to connect the fan is greater than the height of other positions, so that the fan bracket is a variable cross-section frame body with a high middle and low ends. The fan is connected to the position with high structural strength of the fan bracket. At the same time, a raised rib is provided on the first side plate, thereby improving the structural strength of the fan bracket, meeting the support stability requirements of the fan, and ensuring the reliable support of the fan. The fan mechanism of the present invention only uses two fan brackets to support the fan, has a simple structure, a small volume, requires less sheet metal, and has a small volume of the sheet metal mold and low processing cost.

[0029] The present invention also provides an air conditioner outdoor unit, including a support frame, and a fan mechanism is connected to the support frame. The fan mechanism is the above-mentioned fan mechanism. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1Schematic diagram of the structure of the fan mechanism in the prior art;

[0032] Figure 2 Schematic diagram of the structure of the fan mechanism provided by an embodiment of the present invention from one angle;

[0033] Figure 3 Schematic diagram of the structure of the fan mechanism provided by an embodiment of the present invention from another angle;

[0034] Figure 4 Schematic diagram of the structure of the fan bracket provided by an embodiment of the present invention from one angle;

[0035] Figure 5 Schematic diagram of the structure of the fan bracket provided by an embodiment of the present invention from another angle;

[0036] Figure 6 Schematic diagram of the structure of the fan bracket provided by an embodiment of the present invention from yet another angle;

[0037] Figure 7 is Figure 6 Schematic diagram of the structure of part A in;

[0038] Figure 8 Schematic diagram of the structure of the first top plate provided by an embodiment of the present invention;

[0039] Figure 9 Schematic diagram of the partial structure of the fan mechanism provided by an embodiment of the present invention;

[0040] Figure 10 Schematic diagram of the structure of the first cross beam provided by an embodiment of the present invention;

[0041] Figure 11 Schematic diagram of the partial enlarged structure of the end of the first cross beam provided by an embodiment of the present invention;

[0042] Figure 12 Schematic diagram of the partial enlarged structure of the end of the second cross beam provided by an embodiment of the present invention;

[0043] Figure 13 Schematic diagram of the structure of the fan mechanism installed on the support frame provided by an embodiment of the present invention;

[0044] Figure 14 is Figure 13 Schematic diagram of the structure of part B in.

[0045] Wherein:

[0046] 01, cross beam, 02, fan, 03, fan bracket,

[0047] 1, first cross beam,

[0048] 101. First flanging limit hole, 102. Second side plate, 103. Second bottom plate, 104. First claw, 105. Fourth connection through hole, 106. Second top plate,

[0049] 2. Fan,

[0050] 3. Fan bracket,

[0051] 301. First top plate, 3011. Fan connection section, 3012. Connection inclined plate, 3013. End connection section, 302. First side plate, 303. First connection end plate, 304. Second connection through hole, 305. Air guiding flanging, 306. First bottom plate, 307. Second connection end plate, 308. Third connection through hole, 309. Protruding rib, 310. First connection through hole, 311. Connection nut,

[0052] 4. Second cross beam,

[0053] 401. Second flanging limit hole, 402. Third side plate, 403. Third bottom plate, 404. Second claw, 405. Fifth connection through hole, 406. Third top plate,

[0054] 5. Support frame, 501. Sixth connection through hole, 502. Second clamping hole. Detailed implementation mode

[0055] The present invention discloses a fan mechanism, which meets the requirements of the support stability of the fan, ensures the reliable support of the fan, has a simple structure, a small volume and a low processing cost.

[0056] The present invention also provides an outdoor unit of an air conditioner.

[0057] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0058] Refer to Figures 2 to 14 , the fan mechanism of the present invention includes a fan 2 and a fan bracket 3, and the fan 2 is connected to two adjacent fan brackets 3. The cross section of the fan bracket 3 is a C-shaped groove structure, and the fan bracket 3 includes an integrally formed first top plate 301, a first side plate 302 and a first bottom plate 306. The first top plate 301 includes a fan connection section 3011 and an end connection section 3013. As Figure 8 shown, the distance between the fan connection section 3011 and the first bottom plate 306 is greater than the distance between the end connection section 3013 and the first bottom plate 306, and the difference between the two distances is H. AsFigure 9 As shown, the structural strength of the position where the fan 2 is connected to the fan support 3 is improved. To improve the structural strength of the first side plate 302 of the fan support 3, a raised rib 309 is provided on the first side plate 302.

[0059] Among them, the fan connection section 3011 is the connection part between the first top plate 301 and the fan 2, and the end connection section 3013 is the part connected to the support structure of the fan support 3. The fan connection section 3011 and the end connection section 3013 are connected by a connecting inclined plate 3012. One end of the fan connection section 3011 and the connecting inclined plate 3012 is connected by an arc structure, and the other end of the connecting inclined plate 3012 and the end connection section 3013 are connected by an arc structure, thereby reducing the existence of stress concentration structures, reducing the difficulty of integral molding, having better structural strength, and the fan support 3 is not easily deformed.

[0060] The fan mechanism of the present invention includes a fan 2 and a fan support 3. The fan support 3 includes an integral structure of a first top plate 301, a first side plate 302, and a first bottom plate 306. The height of the position of the first top plate 301 for connecting the fan 2 is greater than the height of other positions, so that the fan support 3 is a variable cross-section frame body with a high middle and low ends. The fan 2 is connected to a position with relatively high structural strength of the fan support 3. At the same time, a raised rib 309 is provided on the first side plate 302, thereby improving the structural strength of the fan support 3, meeting the support stability requirements of the fan 2, and ensuring the reliable support of the fan 2. The fan mechanism of the present invention only uses two fan supports 3 to support the fan 2, has a simple structure, a small volume, requires less sheet metal, has a small volume of the sheet metal mold, and a low processing cost.

[0061] Specifically, as Figure 4 shown, the raised rib 309 is arranged parallel to the first bottom plate 306, the length of the raised rib 309 is not less than the length of the fan connection section 3011, and the setting position of the raised rib 309 corresponds to the setting position of the fan connection section 3011. Here, the correspondence means that their central positions correspond, not a limitation on their lengths. Further, as Figures 4 to 6 shown, the raised rib 309 protrudes into the cavity of the fan support 3. There is one raised rib 309, and the length direction of the raised rib 309 is arranged along the length direction of the fan support 3.

[0062] In order to improve the stability and smoothness of the air flow and avoid the generation of turbulence in the air flow of the fan beside the fan support 3, a wind guiding flange 305 is provided at the bottom of the fan support 3. The length direction of the wind guiding flange 305 extends along the length direction of the fan support 3, and the wind guiding flange 305 is inclined from the windward side to the leeward side in the width direction. The wind guiding flange 305 is connected to one side of the first bottom plate 306 away from the first side plate 302. Among them, the length of the wind guiding flange 305 is greater than the diameter of the fan 2, so that the wind guiding flange 305 can better guide the flow direction of the air flow. In an embodiment, the wind guiding flange 305 is provided on the mutually remote sides of the two fan supports 3 that support the fan 2, so as to facilitate guiding more air flow. The wind guiding flange 305 is bent and inclined from the side away from the main body of the fan support 3 to the side of the top of the fan support 3 in the width direction. By providing the wind guiding flange 305 at the bottom of the fan support 3 and arranging the wind guiding flange 305 along the fan support 3, the air blown out by the fan is guided, so that the air flow flows along the guiding direction of the wind guiding flange 35, ensuring the stability and smoothness of the air flow, avoiding the generation of turbulence in the air flow of the fan beside the fan support 3, effectively reducing the noise of the fan, reducing the abnormal noise during the operation of the whole machine, and improving the use comfort of the outdoor unit of the air conditioner.

[0063] In an embodiment, the slot openings of the two fan supports 3 for supporting the same fan 2 are arranged back to back, and the wind guiding flange 305 is arranged at the edge of the first bottom plate 306 away from the first side plate 302, so as to facilitate the integral sheet metal forming of the wind guiding flange 305 and the main body structure of the fan support 3, with convenient processing and high production efficiency.

[0064] In order to facilitate the connection with the fan 2, a first connection through hole 310 for connecting the fan 2 is provided on the first top plate 301, and the fan 2 is connected to the fan support 3 through a first bolt connected in the first connection through hole 310.

[0065] In order to facilitate the connection with the support structure of the fan support 3 and improve the structural strength of the fan support 3 at the same time, first connection end plates 303 are provided at both ends of the first top plate 301, and the first connection end plates 303 are formed by bending the ends of the first top plate 301. Correspondingly, second connection end plates 307 are provided at both ends of the first bottom plate 306, and the second connection end plates 307 are formed by bending the ends of the first bottom plate 306, and the second connection end plates 307 are attached to the outside of the first connection end plates 303. Among them, a second connection through hole 304 for connecting with the second connection end plate 307 is provided on the first connection end plate 303, and a third connection through hole 308 for connecting with the first connection end plate 303 is provided on the second connection end plate 307. The second connection through hole 304 and the third connection through hole 308 are arranged correspondingly. A connecting nut 311 is fixedly connected to one end of the second connection through hole 304 close to the first bottom plate 306, as Figure 7As shown, the connecting nut 311 is welded to the end of the second connecting through-hole 304. The tail end of the second bolt passes through the support structure of the fan bracket 3, the third connecting through-hole 308 and the second connecting through-hole 304 in sequence and then is connected to the connecting nut 311.

[0066] The fan mechanism of the present invention further includes a first cross beam 1 and a second cross beam 4. One end of the fan bracket 3 is connected to the first cross beam 1, and the other end is connected to the second cross beam 4. The fan bracket 3 is connected to the first cross beam 1 and the second cross beam 4 through a first bolt. The fan bracket 3, the first cross beam 1 and the second cross beam 4 are all integrally formed by sheet metal. The first cross beam 1 and the second cross beam 4 are the support structures of the fan bracket 3 for supporting the fan bracket 3. The end of the air guiding flanging 305 extends to a position close to the cross beam, so as to have a better air guiding effect.

[0067] In order to improve the structural reliability of the cross beam and facilitate sheet metal forming, the cross sections of the first cross beam 1 and the second cross beam 4 are both C-shaped grooves. Specifically, as Figure 10 and Figure 11 shown, the first cross beam 1 includes a second top plate 106, second side plates 102 and a second bottom plate 103 which are of an integral structure. In order to facilitate the connection between the fan bracket 3 and the first cross beam 1, the width of the second top plate 106 is smaller than the width of the second bottom plate 103, as Figure 11 shown. Similarly, the second cross beam 4 includes a third top plate 406, third side plates 402 and a third bottom plate 403 which are of an integral structure. In order to facilitate the connection between the fan bracket 3 and the second cross beam 4, as Figure 12 shown, the width of the third top plate 406 is smaller than the width of the third bottom plate 403. The groove openings of the first cross beam 1 and the second cross beam 4 are arranged oppositely.

[0068] In order to limit the relative position between the fan bracket 3 and the cross beam before connection, a first flanging limit hole 101 for limiting the fan bracket 3 is provided on the second bottom plate 103, and a second flanging limit hole 401 for limiting the fan bracket 3 is provided on the third bottom plate 403, as Figure 3As shown, the first flanging limit hole 101 and the second flanging limit hole 401 are arranged staggeredly, and the fan bracket 3 is placed between the first flanging limit hole 101 and the second flanging limit hole 401. The interval distance between the first flanging limit hole 101 and the second flanging limit hole 401 is slightly larger than the width of the connecting end of the fan bracket 3, so as to realize the pre-positioning of the installation position of the fan bracket 3. The first flanging limit hole 101 and the second flanging limit hole 401 are directly formed during die stamping, without extra processes and will not increase costs. Two first flanging limit holes 101 are provided on the first cross beam 1, and two second flanging limit holes 401 are provided on the second cross beam 4. One end of each fan bracket 3 corresponds to a first flanging limit hole 101, and the other end corresponds to a second flanging limit hole 401. The fan bracket 3 is placed between the first flanging limit hole 101 and the second flanging limit hole 401. The flange of the first flanging limit hole 101 is higher than the plate surface of the second bottom plate 103, and the flange of the second flanging limit hole 401 is higher than the plate surface of the third bottom plate 403, so as to realize the positioning of the fan bracket 3.

[0069] In order to facilitate the limit of the installation of the cross beam, a first claw 104 is provided at a position near the end of the second side plate 102. The first claw 104 is used to cooperate with a first card hole (not shown in the figure) on the support frame 5 of the air conditioner outdoor unit. The first claw 104 is hooked in the first card hole to limit the degree of freedom of the first cross beam 1. In one embodiment, in order to facilitate the fixing of the first cross beam 1, fourth connection through holes 105 for connecting with the support frame 5 are provided on the upper and lower parts of the first claw 104, as Figure 11 shown. In other embodiments, only the upper or lower part of the first claw 104 is provided with a fourth connection through hole 105 for connecting with the support frame 5. A second claw 404 is provided at a position near the end of the third side plate 402. Referring to Figure 12 and Figure 14 shown, the second claw 404 is used to cooperate with a second card hole 502 on the support frame 5 of the air conditioner outdoor unit. The second claw 404 is hooked in the second card hole 502. In one embodiment, as Figure 12 shown, fifth connection through holes 405 for connecting with the support frame 5 are provided on the upper and lower parts of the second claw 404. In other embodiments, only the upper or lower part of the second claw 404 is provided with a fifth connection through hole 405 for connecting with the support frame 5.

[0070] Correspondingly, sixth connection through holes 501 are provided at positions on the support frame 5 corresponding to the fourth connection through holes 105 and the fifth connection through holes 405. The support frame 5 and the cross beam are connected by a connecting piece connected in the fourth connection through hole 105 and the fifth connection through hole 405. The connecting piece can be a connecting bolt or a screw.

[0071] For the fan mechanism of the present invention, the first cross beam 1, the second cross beam 4 and the fan support 3 are all sheet metal parts and are formed by die stamping. The fan support 3 is a variable cross-section frame body with a higher middle and lower ends at both ends, that is, the distance between the middle of the first top plate 301 and the first bottom plate 306 is greater than the distance between both ends of the first top plate 301 and the first bottom plate 306. The fan 2 is connected to the middle of the fan support 3, that is, connected to the middle of the first top plate 301. At the same time, a raised bead 309 is provided on the first side plate 302, thereby improving the structural strength of the fan support 3 and thus improving the structural strength of the installation position of the fan 2.

[0072] At both ends of the first top plate 301, first connection end plates 303 are integrally formed. At both ends of the first bottom plate 306, second connection end plates 307 are integrally formed. After the first connection end plate 303 and the second connection end plate 307 are attached, they are connected by a connecting piece, so that the end part of the fan support 3 becomes a closed structure, thereby improving the strength of the overall components of the fan support 3 and effectively improving the structural stability of the fan support 3. A wind guiding flanging 305 is provided at the bottom of the fan support 3. By providing the wind guiding flanging 305, not only the strength of the fan support 3 is improved, but also the flow direction of the air flow can be guided, and the risk of air flow generating turbulence on the side of the fan support 3 is reduced.

[0073] The cross-sections of the first cross beam 1 and the second cross beam 4 are C-shaped cross-sections, which are formed by die stamping and flanging, improving the overall strength of the first cross beam 1 and the second cross beam 4 and ensuring the stability of the overall structure. By providing a first flanging limit hole 101 on the first cross beam 1 and a second flanging limit hole 401 on the second cross beam 4, the first flanging limit hole 101 and the second flanging limit hole 401 are arranged in cooperation, and both protrude from their respective installation surfaces, serving as a rough positioning of the fan support 3 and improving the assembly efficiency.

[0074] The fan mechanism of the present invention includes four fan supports 3, a first cross beam 1, a second cross beam 4 and a fan 2. The fan supports 3 are fixed to the cross beam with connecting pieces to form a frame, and the fan 2 is fixed to the fan support 3 with bolts to form a fan mechanism. The fan mechanism of the present invention has low development cost, is easy to produce and operate, has good structural stability, directly forms a wind guiding structure, the wind guiding flanging 305 during die forming, and the fan support 3 and the cross beam are set in a split and universal manner, reducing the die development cost and the production cost of components. At the same time, the component versatility is improved, the assembly production complexity is reduced, the abnormal noise during the operation of the whole machine is reduced, and the use comfort is improved.

[0075] The present invention also provides an outdoor unit of an air conditioner, including a support frame 5, and a fan mechanism is connected to the support frame 5, and the fan mechanism is the above-mentioned fan mechanism.

[0076] In the description of this solution, it should be understood that the orientation or positional relationships indicated by terms such as "upper", "lower", "vertical", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this solution.

[0077] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this solution, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0078] In this specification, the various embodiments are described in a progressive manner, and the key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0079] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fan mechanism, characterized in that, It includes a fan and a fan bracket, and the fan is connected to two adjacent fan brackets; The cross-section of the fan bracket is a C-shaped groove structure, which includes an integrally structured first top plate, first side plate and first bottom plate. The first top plate includes a fan connection section and an end connection section. The distance between the fan connection section and the first bottom plate is greater than the distance between the end connection section and the first bottom plate. A raised rib is provided on the first side plate.

2. The fan mechanism according to claim 1, characterized in that, The raised rib is arranged parallel to the first bottom plate, the length of the raised rib is not less than the length of the fan connection section, and the setting position of the raised rib corresponds to the setting position of the fan connection section; The raised rib protrudes into the cavity of the fan bracket.

3. The fan mechanism according to claim 1 or 2, characterized in that, A wind guiding flanging is provided at the bottom of the fan bracket. The length direction of the wind guiding flanging extends along the length direction of the fan bracket, and the wind guiding flanging is inclined from the windward side to the leeward side in the width direction; The wind guiding flanging is connected to the side of the first bottom plate away from the first side plate.

4. The fan mechanism according to claim 1 or 2, characterized in that, The groove openings of the two fan brackets for supporting the same fan are arranged back to back.

5. The fan mechanism according to claim 1, characterized in that, First connection end plates are provided at both ends of the first top plate, and the first connection end plates are formed by bending the ends of the first top plate; Second connection end plates are provided at both ends of the first bottom plate, and the second connection end plates are formed by bending the ends of the first bottom plate. The second connection end plates are attached to the outside of the first connection end plates.

6. The blower mechanism according to claim 5, characterized in that, First connection through holes for connecting the fan are provided on the first top plate, second connection through holes for connecting with the second connection end plates are provided on the first connection end plates, third connection through holes for connecting with the first connection end plates are provided on the second connection end plates, and the second connection through holes and the third connection through holes are arranged correspondingly.

7. The fan mechanism according to claim 1, characterized in that The fan mechanism further includes a first cross beam and a second cross beam. One end of the fan bracket is connected to the first cross beam, and the other end is connected to the second cross beam; The fan bracket, the first cross beam and the second cross beam are all integrally formed by sheet metal; The cross-sections of the first cross beam and the second cross beam are both C-shaped grooves; The first cross beam includes an integrally structured second top plate, second side plate and second bottom plate, and the width of the second top plate is less than the width of the second bottom plate; The second cross beam includes an integrally structured third top plate, third side plate and third bottom plate, and the width of the third top plate is less than the width of the third bottom plate; The groove openings of the first cross beam and the second cross beam are arranged opposite to each other.

8. The fan mechanism according to claim 7, wherein, First flanging limit holes for limiting the fan bracket are provided on the second bottom plate, second flanging limit holes for limiting the fan bracket are provided on the third bottom plate, the first flanging limit holes and the second flanging limit holes are arranged staggeredly, and the fan bracket is arranged between the first flanging limit holes and the second flanging limit holes.

9. The fan mechanism according to claim 7, characterized in that, First claws are provided at positions near the ends of the second side plates. The first claws are used to cooperate with first holes on the support frame of the air conditioner outdoor unit, and the first claws are hooked into the first holes; The upper part and / or the lower part of the first claw are / is provided with a fourth connection through hole for connecting with the support frame; A second claw is arranged at a position close to the end of the third side plate. The second claw is used for being cooperatively arranged with a second clamping hole on the support frame of the outdoor unit of the air conditioner, and the second claw is hung in the second clamping hole; The upper part and / or the lower part of the second claw are / is provided with a fifth connection through hole for connecting with the support frame.

10. An outdoor unit of an air conditioner, comprising a support frame, wherein a fan mechanism is connected to the support frame, and is characterized in that, The fan mechanism is the fan mechanism according to any one of claims 1-9.

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