CN112944492A

CN112944492A - Outdoor machine of air conditioner

Info

Publication number: CN112944492A
Application number: CN202110187532.0A
Authority: CN
Inventors: 张允峰; 崔银虎; 高越; 郭斌; 宁明辉; 蒋茂灿
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-06-11

Abstract

The invention provides an air conditioner outdoor unit, which comprises a casing; the two fan assemblies are arranged on the top of the shell side by side; and the two air guide hoods correspond to the fan assembly and are connected to the top end of the casing, first convex ribs and second convex ribs are arranged at the assembly gap between the air guide hoods in a staggered mode, and the first convex ribs and the second convex ribs are respectively positioned on the two air guide hoods at the assembly gap. The two air guide sleeves provided by the invention have a matching form of mutual staggered overlapping, so that a matching gap is completely shielded, and an attractive appearance assembly surface is formed; meanwhile, the design can reduce the requirement on the accuracy of the overall dimension of the air guide sleeve, and reduce the manufacturing difficulty and the reject ratio of parts; and the air guide sleeve has simple structure and easy assembly, thereby reducing the product cost while solving the appearance problem.

Description

Outdoor machine of air conditioner

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner outdoor unit.

Background

The existing top air-out type air conditioner outdoor unit is generally provided with two plastic upper covers which are also plastic air guide sleeves and can play a role in guiding air flow of outlet air. However, after the two plastic upper covers are assembled, an assembly gap is inevitably formed between the two plastic upper covers, and the size and uniformity of the assembly gap directly affect the appearance quality of the air conditioner because the assembly gap has the appearance of a product and can be directly seen by human eyes. In order to control the size and uniformity of the assembly gap, a method for strictly controlling the dimensional accuracy of the plastic upper cover in the appearance assembly is generally adopted in the related art, but the method inevitably causes the problems of high difficulty and cost of the plastic upper cover in injection molding and high part reject ratio. Therefore, it is necessary to design a plastic upper cover which has a simple structure, is easy to assemble and can solve the appearance assembly gap.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides an outdoor unit of an air conditioner, including:

a housing;

the two fan assemblies are arranged on the top of the shell side by side; and

two kuppes correspond the fan subassembly is connected the top of casing, assembly gap department between the kuppe is crisscross to be provided with first protruding muscle and the protruding muscle of second, first protruding muscle with the protruding muscle of second is located respectively on two kuppes of assembly gap department.

According to the invention, the first convex rib and the second convex rib are matched, so that a matching form of mutual staggered overlapping is formed between the two air guide hoods, thus an assembly gap is completely shielded, and an attractive appearance assembly surface is formed; meanwhile, the design can reduce the precision requirement on the overall dimension of the air guide sleeve, and reduce the manufacturing difficulty and the reject ratio of parts, thereby reducing the product cost while solving the appearance problem.

According to some embodiments of the present application, the first rib is formed by extending a side wall and a top wall of one of the fairings; the second convex rib is matched with the first convex rib and arranged on the other air guide sleeve, the top surface of the second convex rib is abutted against the bottom surface of the first convex rib, and the outer side wall of the second convex rib is abutted against the inner side surface of the first convex rib. The structure of the air guide sleeve matched with the side wall surface is simple, the assembly is easy, and the production cost is low.

According to some embodiments of the application, one end of the mating sidewall surface of the pod is provided with the first rib and the other end is provided with the second rib. Two kinds of convex ribs are simultaneously arranged on the two air guide sleeves, so that the two air guide sleeves have the completely same structure, the left and right universality problem of parts can be perfectly realized, and the number of the parts and the management cost of the parts can be reduced.

According to some embodiments of the present application, the top end of the pod has a diffuser air outlet. The diffusion type air outlet not only has the function of reducing air outlet noise, but also can solve the problem of rainwater accumulation in the flow guide cover.

According to some embodiments of the application, the diffusion type air outlet comprises a first annular wall with a narrow top and a wide bottom and a second annular wall with a wide top and a narrow bottom, wherein a generatrix of the first annular wall is linear, a generatrix of the second annular wall is arc-shaped, and the second annular wall is fixedly connected to the bottom end of the first annular wall. The first annular wall which is positioned at the top end and has a linear bus can increase the rigidity of the annular wall and ensure the roundness of the air outlet; the second annular wall with the arc-shaped bus can ensure that rainwater can smoothly flow down when flowing into the flow guide cover, so that rainwater is prevented from accumulating.

According to some embodiments of the application, the generatrix of the first annular wall is inclined at an angle of 3 ° to the central axis. The design of this inclination can play the effect of drainage along with the rainwater for the velocity of flow of rainwater further avoids the rainwater in the kuppe to store up.

According to some embodiments of the present application, the outdoor unit of an air conditioner further comprises: the supporting beam is arranged at the top end of the shell and used for supporting the fan assembly; the air guide sleeve comprises a first cover body and a second cover body fixed above the first cover body, the second cover body is of a hollow cylindrical structure, and the top end of the second cover body is connected with a steel wire protective net; the first cover body is buckled on the outer side of the supporting beam, and the second cover body accommodates the axial flow fan in the fan assembly. The design of the supporting beam provides support for the fan assembly on one hand, ensures the stability of thick assembly of the supporting assembly and provides convenience for the installation of the flow guide cover on the other hand; the arrangement of the steel wire protective net can avoid the danger of the fan assembly to users during operation, and ensure the safety of the whole structure; meanwhile, the structural design of the air guide sleeve is beneficial to ensuring the concentricity of the axle center of the air guide sleeve and the axle center of the fan assembly and reducing the quality risk of friction between the inner wall of the air guide sleeve and the axial flow fan.

According to some embodiments of this application, a supporting beam's top edge is equipped with positioning groove, first cover body inside with positioning groove's department of correspondence is equipped with the location buckle, the location buckle with positioning groove cooperation makes the kuppe joint is in support supporting beam is last. The cooperation setting of positioning channel section and location buckle can effectively solve kuppe assembly difficulty, and the eccentric problem in position further promotes the assembly efficiency of kuppe, reduces the equipment cost.

According to some embodiments of this application, the inner wall top circumference of the second cover body is equipped with a plurality of screw posts, the edge cooperation of steel wire protection network the screw post is equipped with the screw, and fastening screw passes in proper order the screw with the screw post will the steel wire protection network is fixed on the second cover body. The design can further strengthen the firmness of the connection between the steel wire protective net and the second cover body, and the safety of the whole machine is ensured.

According to some embodiments of the application, be provided with many strengthening ribs along the outer wall circumference of the second cover body, just the strengthening rib with the screw post corresponds the setting. The rigidity of the air guide sleeve can be increased through the arrangement of the reinforcing ribs, the risk that the air guide sleeve is pulled and deformed by a steel wire protective net is avoided, and the quality risk that the interior of the air guide sleeve is rubbed with the axial flow fan is further reduced; meanwhile, the corresponding arrangement of the reinforcing ribs and the screw columns can ensure that the rigidity of the air guide sleeve is strongest at the position where the air guide sleeve is stressed most, so that the forced deformation of the air guide sleeve is avoided, and the quality reliability of the air guide sleeve is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an outdoor unit of an air conditioner according to the present invention;

FIG. 2 is an exploded view of an outdoor unit of an air conditioner according to the present invention;

FIG. 3 is an assembled view of a conventional pod;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of the pod of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at B1;

FIG. 7 is an enlarged view of a portion of FIG. 5 at B2;

FIG. 8 is a schematic view of the pod assembly of the present invention;

FIG. 9 is a schematic view of the assembled pod of the present invention;

FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9;

FIG. 11 is an enlarged view of a portion of FIG. 10 at D1;

FIG. 12 is an enlarged view of a portion of FIG. 10 at D2;

FIG. 13 is a cross-sectional view of the pod of the present invention;

FIG. 14 is a schematic view showing the structure of a support beam according to the present invention;

FIG. 15 is an enlarged view of a portion of FIG. 14 at E;

FIG. 16 is another perspective view of the pod of the present invention;

FIG. 17 is an enlarged view of a portion of FIG. 16 at F;

fig. 18 is an assembly view of the wire protective net of the present invention;

fig. 19 is a plan view of the assembled air guide sleeve of the wire protection net of the invention.

In the above figures: 01. an air inlet; 02. an air outlet; 1. a housing; 11. a support beam; 2. a fan assembly; 21. an axial flow fan; 3. a pod; 31. a first cover body; 311. fitting the side wall surfaces; 32. a second cover body; 321. a first annular wall; 322. a second annular wall; 323. a third annular wall; 324. a fourth annular wall; 33. a steel wire protective net; 41. a first rib; 42. a second rib; 51. positioning the clamping groove; 52. positioning a buckle; 61. a screw post; 62. a screw hole; 63. fastening screws; 7. reinforcing ribs; 8. and (5) annular ribs.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigerating effect by heat exchange with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit of the air conditioner.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

Fig. 1 is a schematic structural view of an outdoor unit of an air conditioner according to the present invention, and fig. 2 is an exploded schematic structural view of the outdoor unit of the air conditioner according to the present invention. Hereinafter, specific embodiments according to the present application will be described in detail with reference to the accompanying drawings.

The top-outlet air-conditioning outdoor unit of the present embodiment can be applied to a multi-connected air-conditioning unit, and includes a casing 1, two fan assemblies 2, and two air deflectors 3. The shell 1 is a cavity with an opening at the top end, and components such as a compressor, an outdoor heat exchanger, a condenser and the like are assembled in the shell to realize the refrigeration or heating function of the air conditioner; the two air guide sleeves 3 are covered on the top end of the machine shell 1 in parallel; the two fan assemblies 2 are arranged on the top of the casing 1 and are correspondingly accommodated in the air guide sleeve 3.

Furthermore, an air inlet 01 is formed in the side wall of the machine shell 1, an air outlet 02 is formed in the top wall of the air guide sleeve 3, and the air inlet 01 is communicated with the air outlet 02 to form an air duct. The fan assembly 2 is located in the air duct and arranged corresponding to the air outlet 02 to realize the ventilation function of the air conditioner.

According to an embodiment of the present disclosure, the pod 3 includes a first cover 31 and a second cover 32 positioned above the first cover 31. The first cover body 31 is of a rectangular structure, four corners of the rectangular structure are rounded corners, four sides of the rectangular structure are provided with folded edges, the rectangular structure is convenient to mount and fix, an opening is formed in the center of the first cover body 31, and the edge of the opening extends upwards to form a second cover body 32; the second cover 32 is a cavity with an open bottom, and has a hollow cylindrical structure, which is an assembly space of the axial fan 21 in the fan assembly 2.

For example, the air guide sleeve 3 in the embodiment is made of plastic, and the air guide sleeve 3 made of plastic is chemically stable and cannot be corroded; and has good formability, high wear resistance and low processing cost. Adopt plastics kuppe 3 both can play the effect of carrying out the water conservancy diversion to the air-out air current, this plastics kuppe 3 also is air condensing units's outward appearance upper cover simultaneously, and the aesthetic property is high and be favorable to reducing material cost.

FIG. 3 is an assembled view of a conventional pod; FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of the pod of the present invention; FIG. 6 is an enlarged view of a portion of FIG. 5 at B1;

FIG. 7 is an enlarged view of a portion of FIG. 5 at B2; FIG. 8 is a schematic view of the pod assembly of the present invention;

FIG. 9 is a schematic view of the assembled pod of the present invention; FIG. 10 is a cross-sectional view taken along line C-C of FIG. 9; FIG. 11 is an enlarged view of a portion of FIG. 10 at D1; fig. 12 is a partial enlarged view of fig. 10 at D2.

As shown in fig. 3 to 4, the conventional pod 3 is assembled with an assembly gap necessarily existing between two pods 3, and since the assembly gap exists in the appearance of the product and is directly visible to human eyes, the size and uniformity of the assembly gap directly affect the appearance quality of the air conditioner.

In order to control the size and uniformity of the assembly gap, a method of strictly controlling the accuracy of the outer assembly dimension of the pod 3 is generally adopted, but the method inevitably causes the problems of high injection molding difficulty, high cost and high part reject ratio of the pod 3. Tight control of dimensional accuracy is not a good solution.

According to the embodiment of the present disclosure, as shown in fig. 5, the first ribs 41 and the second ribs 42 are respectively disposed at two corners of the top of the first cover 31 mating side wall surface 311 of the two fairings 3, as shown in fig. 6, the first ribs 41 are located at the edges of the top corners of the first cover 31 mating side wall surface 311, and are formed by directly extending the top wall and the side wall of the first cover 31 in a flush manner; as shown in fig. 7, the second rib 42 is disposed in the mating sidewall surface of the first cover 31, is disposed near another top corner edge of the mating sidewall surface of the first cover 31, and is disposed in mating with the first rib 41 of another pod 31, and the second rib 42 has a staggered drop from the corner edge of the mating sidewall surface 311 at that position, forming a step surface.

After the two identical air guiding hoods 3 are assembled, as shown in fig. 8 to 12, the first ribs 41 and the second ribs 42 respectively located on the two air guiding hoods 3 are staggered at the assembling gap. Specifically, the first rib 41 of one of the fairings 3 is fit-assembled with the second rib 42 of the other fairings 3, and the second rib 42 of the one of the fairings 3 is fit-assembled with the first rib 41 of the other fairings 3, so that the top surface of the second rib 42 of one of the fairings 31 is abutted against the bottom surface of the first rib 41 of the other fairings 31, and the outer side surface of the second rib 42 of the one of the fairings 31 is abutted against the inner side surface of the first rib 41 of the other fairings 31, thereby forming a mutual overlapping fit form, completely blocking a fit gap, and forming an attractive appearance assembly surface.

According to the invention, through the matching arrangement of the first convex rib 41 and the second convex rib 42, the requirement on the overall external dimension precision of the air guide sleeve 3 can be properly reduced, and only the dimension precision of the convex ribs needs to be properly controlled. Since the first ribs 41 and the second ribs 42 are small in size and high in dimensional accuracy, it is relatively easy to control the dimensional accuracy of the ribs. Therefore, the difficulty of manufacturing parts and the fraction defective of the parts can be reduced, and the product cost can be reduced while the appearance problem is solved. Meanwhile, as the two air guide sleeves 3 of the air conditioner outdoor unit have the same structure, the problem of left and right universality of parts can be perfectly solved, so that the number of the parts can be reduced, and the part management cost can be reduced.

FIG. 13 is a cross-sectional view of the pod of the present invention. In the present embodiment, the second cover 32 is composed of four parts, as shown in fig. 13, and includes a first annular wall 321 with a narrow top and a wide bottom, a second annular wall 322 with a narrow top and a wide bottom, a cylindrical third annular wall 323, and a fourth annular wall 324 with a narrow top and a wide bottom in sequence from top to bottom. Wherein, the generatrix of the first annular wall 321 and the third annular wall 323 is linear, and the inclination angle between the generatrix of the first annular wall 321 and the central axis may be 3 °, or may be set to other inclination angles, which is not specifically limited in the present application; the generatrix of the second annular wall 322 and the fourth annular wall 324 is arc-shaped, and the second annular wall 322 and the fourth annular wall 324 are smooth arc-shaped walls. The first annular wall 321 and the second annular wall 322 form a diffuser type air outlet of the airflow guiding cover 3.

Furthermore, the four ring walls of the second cover 32 are all fixedly connected, and the joints are in smooth transition.

The top end of the air guide sleeve 3 provided by the invention is an air outlet structure with smooth circular arcs, so that the problem of water accumulation when rainwater flows into the air guide sleeve in rainy days can be solved. The air guide sleeve 3 is provided with a diffusion type air outlet, the air outlet structure has the function of improving air outlet noise, and the first annular wall 321 which is positioned at the top end and has a linear bus can also increase the rigidity of an annular ring so as to ensure the roundness of the air outlet; the second annular wall 322 with the arc-shaped bus can ensure that rainwater can smoothly flow down when flowing into the air guide sleeve 3, so that rainwater is prevented from accumulating.

According to the embodiment of the present disclosure, the top end of the casing 1 is further provided with a supporting beam 11 for supporting the fan assembly 2, and the first cover 31 of the air guide sleeve 3 is fastened on the supporting beam 11. When assembling kuppe 3, need guarantee the concentricity in 3 axles on kuppe and 2 axles on fan subassembly, if concentricity deviation between them is great, then can lead to axial fan 21 in the fan subassembly 2 and the inside production frictional quality risk of kuppe 3, so in order to guarantee the concentricity between the two, reduce the assembly degree of difficulty simultaneously, this embodiment has designed an interior location structure that has accurate locate function in the internally positioned of guide plate 3.

FIG. 14 is a schematic view showing the structure of a support beam according to the present invention; FIG. 15 is an enlarged view of a portion of FIG. 14 at E; FIG. 16 is another perspective view of the pod of the present invention; fig. 17 is a partial enlarged view of fig. 16 at F.

As shown in fig. 14 to 17, in the present embodiment, a positioning slot 51 is provided at the top end edge of the support beam 11, and a positioning buckle 52 corresponding to the positioning slot 51 is provided at the top end of the inner wall of the second cover 32. When assembling the air guide sleeve 3, the positioning buckle 52 is clamped in the positioning clamping groove 51, so that the air guide sleeve 3 and the supporting beam 11 are accurately positioned.

Specifically, the length dimension of the positioning card slot 51 is w1, and the thickness dimension is d 1; the positioning buckle 52 is provided with a length dimension w2 and a thickness dimension d2, which define w 2-w 1 and d 2-d 1, so as to realize accurate positioning of the air guide sleeve 3 and the support beam 11.

According to the invention, through the matching arrangement of the inner positioning structure, the accurate positioning of the air guide sleeve 3 and the supporting beam 11 can be realized, and the concentricity of the axial flow fan 21 and the air guide sleeve 3 is ensured. And the arrangement of the inner positioning structure ensures that no special attention of assembly workers is needed when the air guide sleeve 3 is assembled, only the air guide sleeve 3 needs to be placed on the supporting beam 11, the air guide sleeve 3 can enable the positioning buckle 52 on the air guide sleeve 3 to automatically slide into the positioning clamp groove 51 on the supporting beam 11 under the action of the gravity of the air guide sleeve 3 and the self guiding action of the positioning structure, then when a worker drives a connecting fixing screw, the concentricity of the axial flow fan 21 and the air guide sleeve 3 can be ensured without specially adjusting the position of the plastic upper cover, the design can effectively solve the problem of position eccentricity of the air guide sleeve 3 and the axial flow fan 21, and the assembly difficulty of the air guide sleeve 3 is reduced, so that the assembly efficiency of the air guide sleeve 3 is improved, and the assembly cost is.

Fig. 18 is an assembly view of the wire protective net of the present invention; fig. 19 is a plan view of the assembled air guide sleeve of the wire protection net of the invention.

Because the blower assembly 2 is arranged in the air guide sleeve 3, the axial flow fan 21 in the blower assembly 2 is a moving part, and a steel wire protective net is required to be arranged at the top end of the air guide sleeve 3 for safety. Therefore, the air guide sleeve 3 in the present embodiment further includes a wire protection net 33 provided at the top end of the second cover 32.

Specifically, a plurality of screw columns 61 are circumferentially arranged on the inner wall of the first annular wall 321 at intervals, a plurality of screw holes 62 are formed in the edge of the steel wire protective net 33 corresponding to the plurality of screw columns 61, and when the steel wire protective net 33 is assembled, after the screw holes 62 are aligned with the screw columns 61 one by one, fastening screws 63 penetrate through the screw holes 62 and are assembled into the screw columns 61, so that the steel wire protective net 33 is fastened and connected with the second cover body 32.

Further, the protective steel wire mesh 33 is usually formed by winding steel wires, and since the dimensional accuracy of the steel wire protective mesh 33 is not easy to control, when the steel wire protective mesh 33 with a large dimensional deviation is assembled on the plastic air guide sleeve 3, since the rigidity of the steel wires is greater than the rigidity of the plastic, there is a risk that the steel wire protective mesh 33 pulls and deforms the plastic air guide sleeve 3, and further there is a quality risk that the axial flow fan 21 rubs against the inner wall of the air guide sleeve 3. In order to avoid such a problem, the present embodiment designs a kind of rib 7 on the outer surface of the second cover 32 for supporting the pod 3 to prevent the pod from deforming.

Specifically, as shown in fig. 18 to 19, the present embodiment is provided with a plurality of ribs 7 along the outer circumferential direction of the second cover 32. Since the position of the screw post 61 is the maximum pulling force position of the air guide sleeve 3 when the steel wire protection net 33 is fastened by the fastening screw 63, the reinforcing ribs 7 and the screw posts 61 in the embodiment are arranged in one-to-one correspondence to ensure that the air guide sleeve 3 has the strongest rigidity at the position with the maximum stress, so that the stress deformation of the air guide sleeve 3 can be avoided.

Further, the distance between the outermost side and the innermost side of the reinforcing bead 7 is defined as the thickness of the reinforcing bead 7. Due to the characteristics of the circular arc, the rigidity of the pod 3 at the second annular wall 322 and the fourth annular wall 324 is better than that of the third annular ring 323 in the middle straight line section of the pod 3, so the reinforcing rib 7 in the embodiment is correspondingly designed to be a variable-thickness reinforcing rib with a thick middle part and thin two ends.

Specifically, the thickness of the reinforcing ribs 7 positioned on the second annular wall 322 and the fourth annular wall 324 gradually increases towards the third annular wall 323, and the increasing trend is matched with the radian of the arc-shaped wall; the thickness of the bead 7 at the third annular wall 323 remains constant and the thickness of the portion of the bead 7 has the greatest value. Therefore, the thickness of the reinforcing rib 7 in the embodiment has the characteristics of thick middle and thin two ends, and the reinforcing rib can ensure that the reinforcing rib has the function of strengthening, and simultaneously reduces the difficulty of the plastic injection mold process.

In this embodiment, two annular ribs 8 are disposed at intervals outside the third annular wall 323, and the annular ribs 8 and the reinforcing rib 7 can be integrally injection molded to further enhance the supporting function of the second cover 32 and prevent the deformation of the pod 3.

The air guide sleeve provided by the invention is provided with the diffusion type air outlet, so that the problem of water accumulation in the air guide sleeve in rainy days is effectively solved; the assembly difficulty of the air guide sleeve is effectively reduced by arranging the positioning structure in the air guide sleeve; the injection molding precision requirement of the air guide sleeve is reduced through the matched arrangement of the convex rib structure on the assembly side of the air guide sleeve, the problem of assembly gaps is solved, and the appearance attractiveness of the air conditioner outdoor unit is improved; the air guide sleeve provided by the invention also reduces the risk of stress deformation of the air guide sleeve by arranging the reinforcing ribs at the outer side of the air guide sleeve, and enhances the quality reliability of the air guide sleeve. In addition, the air guide sleeve provided by the invention has the advantages of simple structure, easiness in assembly and low production cost.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. An outdoor unit of an air conditioner, comprising:

a housing;

the two fan assemblies are arranged on the top of the shell side by side; and

2. The outdoor unit of claim 1, wherein the first rib is formed by extending a side wall and a top wall of one of the hoods; the second convex rib is matched with the first convex rib and arranged on the other air guide sleeve, the top surface of the second convex rib is abutted against the bottom surface of the first convex rib, and the outer side wall of the second convex rib is abutted against the inner side surface of the first convex rib.

3. The outdoor unit of claim 1, wherein the first ribs are formed at one end of the fitting sidewall surface of the air guide sleeve, and the second ribs are formed at the other end thereof.

4. The outdoor unit of claim 1, wherein the top end of the louver has a diffuser vent.

5. The outdoor unit of claim 4, wherein the pressure-expanding air outlet includes a first annular wall having a narrow top and a wide bottom and a second annular wall having a wide top and a narrow bottom, a generatrix of the first annular wall is linear, a generatrix of the second annular wall is arc-shaped, and the second annular wall is fixedly connected to a bottom end of the first annular wall.

6. The outdoor unit of claim 5, wherein the generatrix of the first circumferential wall is inclined at an angle of 3 ° with respect to the central axis.

7. The outdoor unit of claim 1, further comprising:

the supporting beam is arranged at the top end of the shell and used for supporting the fan assembly;

the air guide sleeve comprises a first cover body and a second cover body fixed above the first cover body, the second cover body is of a hollow cylindrical structure, and the top end of the second cover body is connected with a steel wire protective net;

the first cover body is buckled on the outer side of the supporting beam, and the second cover body accommodates the axial flow fan in the fan assembly.

8. The outdoor unit of claim 7, wherein a positioning engaging groove is formed at a top edge of the supporting beam, and a positioning engaging buckle is formed at a position corresponding to the positioning engaging groove in the first casing, and the positioning engaging groove cooperates with the positioning engaging groove to engage the air guide sleeve with the supporting beam.

9. The outdoor unit of claim 7, wherein a plurality of screw posts are circumferentially provided at a top end of an inner wall of the second casing, screw holes are provided at edges of the wire mesh, which are engaged with the screw posts, and fastening screws sequentially pass through the screw holes and the screw posts to fix the wire mesh to the second casing.

10. The outdoor unit of claim 9, wherein a plurality of reinforcing ribs are formed along a circumferential direction of the outer wall of the second cover, and the reinforcing ribs are formed to correspond to the screw posts.