CN214223261U

CN214223261U - Outdoor machine of air conditioner

Info

Publication number: CN214223261U
Application number: CN202022893868.2U
Authority: CN
Inventors: 刘乃桐; 陈维涛; 詹镇江; 余东东; 李跃飞
Original assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-09-17
Anticipated expiration: 2030-12-03
Also published as: US20230160584A1; EP4130588A4; WO2022116610A1; EP4130588A1

Abstract

The utility model discloses an air condensing units, air condensing units includes casing, heat exchanger, wind wheel, motor and support, the casing has first chamber and the air outlet that communicates with first chamber, the heat exchanger is established at first intracavity and is linked to each other with the casing, the heat exchanger includes relative first portion and second portion each other on the horizontal direction, minimum distance between first portion and the second portion is S, the support is established at first intracavity and is linked to each other with the casing, the support is located the top of heat exchanger, the motor is located first intracavity and establishes on the support, the wind wheel is located first intracavity and links to each other with the motor, the diameter of wind wheel is D, the first portion of support is relative with the heat exchanger on the upper and lower direction, the first portion of support is L1 with the minimum distance of heat exchanger on the upper and lower direction, when S < D, L1 satisfies: l1 is more than or equal to 0 and less than or equal to 0.15D. The utility model discloses an air condensing units can reduce because the improper amount of wind loss and the pneumatic noise that causes of cooperation between heat exchanger and the support, improves heat transfer performance.

Description

Outdoor machine of air conditioner

Technical Field

The utility model relates to a technical field of the air conditioner heat transfer, more specifically relates to an air condensing units.

Background

In the related art, the outdoor unit of the air conditioner arranges a fan module above the heat exchanger, the fan module comprises a wind wheel, a motor, a bracket and a wind guide ring, and a mesh enclosure is arranged at an upper opening of a shell of the outdoor unit of the air conditioner to ensure the safety of the fan module.

The outdoor unit of the air conditioner is required to maintain low operation noise and high pneumatic efficiency while ensuring high air volume. However, in the related art, due to improper design among the heat exchanger, the wind wheel, the motor, the bracket, the wind guide ring and the mesh enclosure, air volume loss and aerodynamic noise are easily caused.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides an air condensing units, this air condensing units can reduce because air loss and the pneumatic noise that the cooperation between heat exchanger, wind wheel, motor, support, wind-guiding circle and the screen panel improper caused, improves heat transfer performance.

According to the utility model discloses air condensing units includes: the air conditioner comprises a shell, a first air inlet and a second air inlet, wherein the shell is provided with a first cavity and an air outlet communicated with the first cavity; the heat exchanger is arranged in the first cavity and comprises a first part and a second part which are opposite to each other in the horizontal direction, and the minimum distance between the first part and the second part is S; the fan assembly comprises a wind wheel, a motor and a support, the support is arranged in the first cavity and connected with the shell, the support is positioned above the heat exchanger, the motor is positioned in the first cavity and arranged on the support, the wind wheel is positioned in the first cavity and connected with the motor, and the diameter of the wind wheel is D; the first part of the bracket is opposite to the heat exchanger in the up-down direction, the minimum distance between the first part of the bracket and the heat exchanger in the up-down direction is L1, and when S < D, L1 satisfies: l1 is more than or equal to 0 and less than or equal to 0.15D.

According to the utility model discloses outdoor unit of air conditioner includes the casing, heat exchanger and fan subassembly are all established in the casing, the heat exchanger includes first portion and the second portion relative each other in the horizontal direction, and the minimum distance between first portion and the second portion is S, the fan subassembly includes the support, establish the motor on the support and the wind wheel that links to each other with the motor, the diameter of wind wheel is D, wherein, a part of support is located the heat exchanger directly over, the minimum distance between a part of this support and the top of heat exchanger is L1, when S < D, L1 satisfies: l1 is more than or equal to 0 and less than or equal to 0.15D. The minimum distance L1 between a part of the bracket and the top end of the heat exchanger in the outdoor unit of the air conditioner satisfies the following condition: when L1 is more than or equal to 0 and less than or equal to 0.15D, and when cold air in the shell flows to the outside, the cold air cannot generate speed loss, the air exhaust quantity and efficiency of the wind wheel can be improved, and the noise of the wind wheel is reduced.

In some embodiments, L1 satisfies when S ≧ D: l1 is more than or equal to 0 and less than or equal to 0.05D.

In some embodiments, the minimum distance between the wind wheel and the bracket in the up-down direction is L2, and L2 satisfies: l2 is more than or equal to A1 and less than or equal to A1+50mm, wherein A1 is a first preset value.

In some embodiments, 20mm ≦ A1 ≦ 55 mm.

In some embodiments, the outdoor unit of an air conditioner further includes a mesh enclosure, the air outlet is disposed at the upper end of the casing, the wind wheel is opposite to the air outlet in the vertical direction, the mesh enclosure is disposed at the air outlet and connected to the casing, and a blocking ratio of the mesh enclosure is σ, and σ satisfies: sigma is more than or equal to 0.12 and less than or equal to 0.15.

In some embodiments, σ satisfies: 0.133 is less than or equal to sigma and less than or equal to 0.137, and the mesh enclosure comprises: a plurality of first ribs arranged parallel to each other and spaced apart in a first horizontal direction, and a plurality of second ribs arranged parallel to each other and spaced apart in a second horizontal direction, each of the first ribs being perpendicular to each of the second ribs, each of the first ribs being arranged crosswise to each of the second ribs so as to form a grid; a plurality of third ribs, each of said third ribs being located between two adjacent of said first ribs in said first horizontal direction, each of said third ribs being parallel to each of said first ribs, each of said third ribs being perpendicular to each of said second ribs; a plurality of fourth ribs, each of said fourth ribs being located between two adjacent ones of said second ribs in said second horizontal direction, each of said fourth ribs being parallel to each of said second ribs, each of said fourth ribs being perpendicular to each of said first ribs; each of the first ribs and the second ribs has a diameter of 5mm or more and less than 7 mm, and each of the third ribs and the fourth ribs has a diameter of 2 mm or more and less than 3 mm.

In some embodiments, the minimum distance between the wind wheel and the mesh enclosure in the up-down direction is L3, and L3 satisfies: l3 is more than or equal to A2 and less than or equal to 150mm, wherein A2 is a second preset value.

In some embodiments, A2 is ≧ 90 mm.

In some embodiments, the outdoor unit of an air conditioner further includes an air guide ring, the air guide ring is disposed in the first cavity, the air guide ring is connected to the casing and sleeved on the wind wheel, an upper end of the air guide ring is located above an upper end of the wind wheel, a minimum distance between the air guide ring and the wind wheel in a radial direction of the wind wheel is L4, and L4 satisfies: l4 is more than 0 and less than or equal to 0.02D.

In some embodiments, L4 satisfies: l4 is more than or equal to 0.013D and less than or equal to 0.017D.

Drawings

Fig. 1 is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 2 is a front view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 3 is a plan view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 4 is another plan view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 5 is a perspective view of a heat exchanger in an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 6 is a schematic view of a mesh enclosure in an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 7 is a schematic view of a mesh enclosure in an outdoor unit of an air conditioner according to another embodiment of the present invention.

Fig. 8 is a linear relationship between L1 and the amount of discharged air in the outdoor unit of the air conditioner according to the embodiment of the present invention.

Fig. 9 shows a linear relationship between L1 and noise in the outdoor unit of the air conditioner according to the embodiment of the present invention.

Reference numerals:

the air conditioner outdoor unit 100, the casing 1, the heat exchanger 2, the first portion 21, the second portion 22, the third portion 23, the fan assembly 3, the bracket 31, the first portion 311, the motor 32, the wind wheel 33, the mesh enclosure 4, the first ribs 41, the second ribs 42, the third ribs 43, the fourth ribs 44, and the air guide ring 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 7, an outdoor unit 100 of an air conditioner according to an embodiment of the present invention includes a casing 1, a heat exchanger 2, and a fan assembly 3. The housing 1 has a first chamber 11 and an air outlet 12 communicating with the first chamber 11.

The heat exchanger 2 is disposed in the first chamber 11, and the heat exchanger 2 is connected to the peripheral wall and the bottom plate of the casing 1. The heat exchanger 2 comprises a first portion 21 (e.g. the left side of the heat exchanger 2 in fig. 5) and a second portion 22 (e.g. the right side of the heat exchanger 2 in fig. 5) opposite to each other in the horizontal direction, the minimum distance between the first portion 21 and the second portion 22 being S.

The fan assembly 3 includes a wind wheel 33, a motor 32, and a bracket 31. The support 31 is arranged in the first cavity 11 and connected with the shell 1, the support 31 is positioned above the heat exchanger 2, the motor 32 is positioned in the first cavity 11 and arranged on the support 31, the wind wheel 33 is positioned in the first cavity 11 and connected with the motor 32, and the diameter of the wind wheel 33 is D.

The first portion 311 of the holder 31 is opposed to the heat exchanger 2 in the up-down direction, i.e., the first portion 311 of the holder 31 is located directly above the heat exchanger 2. The minimum distance between the first part 311 of the bracket 31 and the heat exchanger 2 in the up-down direction is L1, and when S < D, L1 satisfies: l1 is more than or equal to 0 and less than or equal to 0.15D.

The minimum distance S is the minimum of all distances from any point on the first portion 21 to any point on the second portion 22. The minimum distance L1 is the minimum of all distances from any point on the heat exchanger 2 to any point on the first portion 311 of the bracket 31.

After entering the first chamber 11, the outside air exchanges heat with the heat exchanger 2. The heat-exchanged air is discharged out of the first chamber 11 by the wind wheel 33. According to the utility model discloses air condensing units 100 is through making 0 be less than or equal to L1 be less than or equal to 0.15D to make the air through the heat exchange can not produce the speed loss when flowing through wind wheel 33 and support 31 (fan subassembly 3), so that can make wind wheel 33 have higher volume of airing exhaust and efficiency, and reduce wind wheel 33's noise effectively.

Therefore, the outdoor unit 100 of the present invention has advantages of high air discharge capacity and low noise.

As shown in fig. 1 to 7, an outdoor unit 100 of an air conditioner according to an embodiment of the present invention includes a casing 1, a heat exchanger 2, and a fan assembly 3.

As shown in fig. 1, the casing 1 is substantially rectangular parallelepiped, and the casing 1 has a bottom plate, a top plate, a left side plate, a right side plate, a front end plate, and a rear end plate. The first chamber 11 is substantially square in cross-section. The heat exchanger 2 is generally U-shaped, and the heat exchanger 2 includes a first portion 21, a second portion 22, and a third portion 23, wherein the first portion 21 and the second portion 22 are opposed to each other in the left-right direction, and the third portion 23 is connected between the first portion 21 and the second portion 22. The heat exchanger 2 is arranged in the first cavity 11, the first part 21 is connected with a left side plate of the shell 1, the second part 22 is connected with a right side plate of the shell 1, the third part 23 is connected with a front end plate (or a rear end plate) of the shell 1, and the lower ends of the first part 21, the second part 22 and the third part 23 are connected with a bottom plate of the shell 1.

Wherein the inner surface of the first portion 21 and the inner surface of the second portion 22 are substantially parallel, and the minimum distance between the inner surface of the first portion 21 and the inner surface of the second portion 22 is S. The inner surface of the first portion 21 refers to a surface of the first portion 21 adjacent to the middle of the first chamber 11, i.e., the inner surface of the first portion 21 refers to a surface of the first portion 21 adjacent to the second portion 22 in the horizontal direction. The inner surface of the second portion 22 refers to a surface of the second portion 22 adjacent to the middle of the first chamber 11, i.e., the inner surface of the second portion 22 refers to a surface of the second portion 22 adjacent to the first portion 21 in the horizontal direction.

For example, when the first portion 21 and the second portion 22 are opposed to each other in the left-right direction, the inner surface of the first portion 21 is the right side surface of the first portion 21, and the inner surface of the second portion 22 is the left side surface of the second portion 22.

It will be appreciated that the first chamber 11 is generally square in cross-section and the inner surface of the third portion 23 refers to the surface of the third portion 23 adjacent the middle of the first chamber 11. The inner surface of the third portion 23 is substantially parallel to the front end surface (or the rear end surface) of the housing 1, and the minimum distance Sa between the inner surface of the third portion 23 and the front end surface (or the rear end surface) of the housing 1 is greater than S, where Sa is the minimum of all distances from any point on the third portion 23 to any point on the front end surface of the housing 1.

In the outdoor unit 100 of the present application, the casing 1 is provided with vent holes in the peripheral wall thereof connected to the heat exchanger 2, and external hot air enters the casing 1 through the vent holes in the casing 1 to exchange heat with the heat exchanger 2. The heat exchanged air flows upwards towards the fan assembly 3 and is discharged from the first chamber 11 by the wind wheel 33.

The holder 31 is substantially square, the holder 31 being arranged in the first chamber 11, the holder 31 being located above the heat exchanger 2. Wherein the first part 311 of the bracket 31 (i.e. the edge part of the bracket 31) is located right above the heat exchanger 2, the minimum distance between the first part 311 of the bracket 31 and the top end of the heat exchanger 2 is L1, and when S < D, L1 satisfies: l1 is more than or equal to 0 and less than or equal to 0.15D.

In some embodiments, as shown in FIG. 2, L1 satisfies when S ≧ D: l1 is more than or equal to 0 and less than or equal to 0.05D, and after entering the first cavity 11, the outside air exchanges heat with the heat exchanger 2. The heat-exchanged air is discharged out of the first chamber 11 by the wind wheel 33. According to the utility model discloses air condensing units 100 is through making 0 be less than or equal to L1 be less than or equal to 0.05D to make the air through the heat exchange can not produce the speed loss when flowing through wind wheel 33 and support 31 (fan subassembly 3), so that can make wind wheel 33 have higher volume of airing exhaust and efficiency, and reduce wind wheel 33's noise effectively.

As shown in fig. 8 to 9, the relationship between L1 and the discharge amount and the noise in the outdoor unit 100 of the air conditioner according to the embodiment is as follows:

with the gradual increase of L1, the air discharge quantity gradually increases, and the noise gradually decreases.

In some embodiments, as shown in fig. 2, the minimum distance between the wind wheel 33 and the support 31 in the up-down direction is L2, and the minimum distance L2 is the minimum of all distances from any point on the wind wheel 33 to any point on the support 31. L2 satisfies: l2 is more than or equal to A1 and less than or equal to A1+50mm, wherein A1 is a first preset value. Therefore, the airflow between the wind wheel 33 and the bracket 31 has enough space for dissipation, namely, the sufficient space between the wind wheel 33 and the bracket 31 is used for dissipating the heat exchanged air, thereby effectively weakening the noise generated by the interaction between the airflow and the wind wheel 33, and simultaneously, the gap between the wind wheel 33 and the bracket 31 is also beneficial to improving the air exhaust amount of the wind wheel 33, so that the wind wheel 33 can not collide with the bracket 31 even if vibrating and deflecting in the rotating process, and the safe operation of the wind wheel 33 is ensured

In some embodiments, 20mm ≦ A1 ≦ 55 mm.

When A1 is 20mm, L2 is 20mm or more and 70mm or less, namely the minimum distance from the wind wheel 33 to the support 31 is 20mm, so that the wind wheel 33 does not collide with the support 31 even if the wind wheel 33 vibrates and deflects in the rotating process, and the wind wheel 33 is ensured to run more safely. In the up-down direction, the maximum vertical distance from the lowest point on the wind wheel 33 to the bracket 31 is 70mm, so that the whole height of the motor assembly 3 is effectively reduced while the safe operation of the wind wheel 33 is ensured, the installation space of the motor assembly 3 is saved, and the production cost of the air conditioner outdoor unit 100 is reduced.

When A1 is 55mm, L2 is 55mm or more and 125mm or less, namely the minimum vertical distance from the lowest point on the wind wheel 33 to the bracket 31 is 55mm, so that the air flow between the wind wheel 33 and the bracket 31 has enough space for dissipation, and the noise generated by the interaction between the air flow and the wind wheel 33 is effectively reduced.

Preferably, the cross section of the bracket 31 in the up-down direction may be designed to be circular, elliptical, semicircular or arc, wherein the arc part protrudes downward, that is, the arc surface corresponds to the discharging direction of the cold wind, thereby reducing the blockage of the bracket 31 to the cold wind, keeping the flow velocity of the cold wind constant, and facilitating the improvement of the air discharging efficiency of the outdoor unit 100 of the air conditioner.

In some embodiments, as shown in fig. 1 to 7, the outdoor unit 100 further includes a mesh enclosure 4, the air outlet 12 is disposed at an upper end of the casing 1, for example, the air outlet 12 is disposed on a top plate of the casing 1, the wind wheel 33 is opposite to the air outlet 12 in an up-down direction, that is, the wind wheel 33 is disposed in the first cavity 11, and the wind wheel 33 is located right below the air outlet 12.

The screen panel 4 is established in 12 departments of air outlet and links to each other with casing 1, and the jam ratio of screen panel 4 is sigma, and sigma satisfies: 0.12 ≦ σ ≦ 0.15, where σ is defined as: assuming that the frame area of the mesh panel 4 is S1 and the void area in the mesh panel 4 is S2, σ is (S1-S2) ÷ S1, and therefore, the blockage ratio of the mesh panel 4 is σ, i.e., the ratio of the void area on the mesh panel 4 to the frame area of the mesh panel 4 is 1- σ. The frame area S1 is the area of the area surrounded by the frame of the mesh enclosure 4.

Further, the smaller the σ value, the larger the void area on the mesh 4, the better the ventilation effect, but at the same time the structural strength of the mesh 4 will be lower. Conversely, the larger the σ value, the higher the structural strength of the mesh panel 4, but the smaller the void area on the mesh panel 4, the lower the ventilation effect. Therefore, when setting the clogging ratio σ of the mesh panel 4, it is necessary to ensure both the structural strength of the mesh panel 4 and the ventilation effect of the mesh panel 4. When σ is more than or equal to 0.12 and less than or equal to 0.15, the mesh enclosure 4 not only ensures the structural strength, prolongs the service life of the mesh enclosure 4, but also ensures the ventilation effect, improves the air exhaust efficiency of the outdoor unit 100 of the air conditioner, and improves the heat exchange effect.

In some embodiments, σ satisfies: sigma is more than or equal to 0.133 and less than or equal to 0.137, and the structural strength and the ventilation effect of the mesh enclosure 4 are better.

In some embodiments, as shown in fig. 6, mesh enclosure 4 includes a plurality of first ribs 41, a plurality of second ribs 42, a plurality of third ribs 43, and a plurality of fourth ribs 44.

A plurality of first ribs 41 are arranged parallel to each other and spaced apart in a first horizontal direction (e.g., the left-right direction shown in fig. 6), a plurality of second ribs 42 are arranged parallel to each other and spaced apart in a second horizontal direction (e.g., the front-rear direction shown in fig. 6), each first rib 41 is perpendicular to each second rib 42, and each first rib 41 is arranged to intersect each second rib 42 so as to form a grid.

Each third rib 43 is located between two adjacent first ribs 41 in the first horizontal direction, and in particular, a plurality of third ribs 43 may be provided between two first ribs 41, i.e. the plurality of third ribs 43 equally divides the gap between two first ribs 41. Each third rib 43 is parallel to each first rib 41 and each third rib 43 is perpendicular to each second rib 42.

Each fourth rib 44 is located between two adjacent second ribs 42 in the second horizontal direction, specifically, a plurality of fourth ribs 44 may be provided between two second ribs 42, that is, the plurality of fourth ribs 44 equally divide the gap between two second ribs 42. Each fourth rib 44 is parallel to each second rib 42 and each fourth rib 44 is perpendicular to each first rib 41.

Wherein the diameter of each of first ribs 41 and second ribs 42 is greater than or equal to 5mm and less than 7 mm, the diameter of each of third ribs 43 and fourth ribs 44 is greater than or equal to 2 mm and less than 3 mm, preferably, the diameter of first ribs 41 and second ribs 42 is the same, and the diameter of third ribs 43 and fourth ribs 44 is the same.

It will be appreciated that first ribs 41 and second ribs 42 are coarse ribs relative to third ribs 43 and fourth ribs 44. First rib 41 and second rib 42 mutually perpendicular intersect, the skeleton of screen panel 4 is constituteed to first rib 41 and second rib 42, third rib 43 and fourth rib 44 mutually perpendicular intersect, and third rib 43 establishes between adjacent first rib 41, fourth rib 44 establishes between adjacent second rib 42, therefore, third rib 43 and fourth rib 44 further subdivide the net on screen panel 4, make the pore size on screen panel 4 diminish, outside debris can't enter into the inside of casing 1 through screen panel 4, the safe operation of wind wheel 33 has been guaranteed promptly, the incident has been reduced.

Meanwhile, the thick ribs (the first ribs 41 and the second ribs 42) effectively improve the structural strength of the mesh enclosure 4, and the thin ribs (the third ribs 43 and the fourth ribs 44) effectively reduce the blocking ratio sigma of the mesh enclosure 4, improve the pore area on the mesh enclosure 4, and contribute to improving the ventilation effect of the mesh enclosure 4.

In other embodiments, as shown in fig. 7, the mesh enclosure 4 may also be circular, the first ribs 41 and the second ribs 42 are arranged to intersect in the radial direction of the mesh enclosure 4, the third ribs 43 are circular, and the third ribs 43 are connected to the first ribs 41 and the second ribs 42, respectively. The fourth ribs 44 are arranged along the radial direction of the mesh enclosure 4, and the fourth ribs 44 are connected to the plurality of third ribs 43, respectively.

In some embodiments, as shown in fig. 2, the minimum distance between the wind wheel 33 and the mesh enclosure 4 in the up-down direction is L3, and the minimum distance L3 is the minimum value of all distances from any point on the wind wheel 33 to any point on the mesh enclosure 4. L3 satisfies: l3 is more than or equal to A2 and less than or equal to 150mm, wherein A2 is a second preset value, and therefore the mesh enclosure 4 can protect the wind wheel 33 from entering the shell 1 and colliding with the wind wheel 33 by external impurities.

In some embodiments, a2 is greater than or equal to 90mm, and when a2 is greater than or equal to 90mm, L3 is greater than or equal to 90mm and less than or equal to 150mm, the wind wheel 33 does not affect the outside of the mesh enclosure 4 and the shell 1.

In some embodiments, as shown in fig. 1 to 7, the outdoor unit 100 of the air conditioner further includes a wind guiding ring 5, the wind guiding ring 5 is disposed in the first cavity 11, the wind guiding ring 5 is connected to the casing 1 and sleeved on the wind wheel 33, an upper end of the wind guiding ring 5 is located above an upper end of the wind wheel 33, a minimum distance between the wind guiding ring 5 and the wind wheel 33 in a radial direction of the wind wheel 33 is L4, and L4 satisfies: l4 is more than 0 and less than or equal to 0.02D.

It can be understood that, in the horizontal plane, the outermost side of the wind wheel 33 is approximately circular, the inner surface of the wind guiding ring 5 is also circular, the two circles are concentric circles, and the minimum distance L4 is the difference between the radii of the two concentric circles.

Specifically, when wind-guiding circle 5 is not provided, the cross section of first chamber 11 is roughly square, and wind wheel 33 is established in first chamber 11, and at this moment, wind wheel 33 is when rotatory, and the distance between the inside surface of casing 1 to the outside on wind wheel 33 is different, and the air current that wind wheel 33 drove can produce different flow directions because the distance between the inside surface of casing 1 is different to the outside on wind wheel 33 in the flow process, and the air current that wind wheel 33 drove can interfere between self, leads to the noise, and can influence the stability of wind wheel 33.

When the air guide ring 5 is arranged, the air guide ring 5 is approximately annular, the air guide ring 5 is arranged in the first cavity 11, the air guide ring 5 is sleeved on the wind wheel 33, and the air guide ring 5 and the wind wheel 33 are coaxially arranged, so that the distance between each point on the outermost side of the wind wheel 33 and the inner surface of the air guide ring 5 is equal to each other in the radial direction of the wind wheel 33, namely the flow direction of the air flow driven by the wind wheel 33 is consistent, interference among the air flows is avoided, the noise of the air conditioner outdoor unit 100 is favorably reduced, and the stability of the wind wheel 33 is favorably improved.

When L4 is more than 0 and less than or equal to 0.02D, the airflow hardly generates backflow and vortex in the wind wheel 33 and the wind guide ring 5, so that the airflow can be discharged out of the shell 1 more quickly.

In some embodiments, L4 satisfies: l4 is more than or equal to 0.013D and less than or equal to 0.017D, at the moment, the airflow driven by the wind wheel 33 can not generate backflow and vortex between the wind guide ring 5 and the wind wheel 33, and the matching effect between the wind guide ring 5 and the wind wheel 33 is better.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

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

the air conditioner comprises a shell, a first air inlet and a second air inlet, wherein the shell is provided with a first cavity and an air outlet communicated with the first cavity;

the heat exchanger is arranged in the first cavity and comprises a first part and a second part which are opposite to each other in the horizontal direction, and the minimum distance between the first part and the second part is S;

the fan assembly comprises a wind wheel, a motor and a support, the support is arranged in the first cavity and connected with the shell, the support is positioned above the heat exchanger, the motor is positioned in the first cavity and arranged on the support, the wind wheel is positioned in the first cavity and connected with the motor, and the diameter of the wind wheel is D;

the first part of the bracket is opposite to the heat exchanger in the up-down direction, the minimum distance between the first part of the bracket and the heat exchanger in the up-down direction is L1, and when S < D, L1 satisfies: l1 is more than or equal to 0 and less than or equal to 0.15D.

2. The outdoor unit of claim 1, wherein L1 satisfies, when S ≧ D: l1 is more than or equal to 0 and less than or equal to 0.05D.

3. The outdoor unit of claim 1, wherein the wind wheel is spaced apart from the bracket by a minimum distance L2 in the vertical direction, and L2 satisfies: l2 is more than or equal to A1 and less than or equal to A1+50mm, wherein A1 is a first preset value.

4. The outdoor unit of claim 3, wherein A1 is 20mm or more and 55mm or less.

5. The outdoor unit of claim 1, further comprising a mesh enclosure, wherein the air outlet is formed at an upper end of the casing, the wind wheel is opposite to the air outlet in an up-down direction, the mesh enclosure is formed at the air outlet and connected to the casing, and a blocking ratio of the mesh enclosure is σ, and σ satisfies: sigma is more than or equal to 0.12 and less than or equal to 0.15.

6. The outdoor unit of claim 5, wherein σ satisfies: 0.133 is less than or equal to sigma and less than or equal to 0.137, and the mesh enclosure comprises: a plurality of first ribs, a plurality of second ribs, a plurality of third ribs and a plurality of fourth ribs, the plurality of first ribs being disposed parallel to each other and spaced apart in a first horizontal direction, the plurality of second ribs being disposed parallel to each other and spaced apart in a second horizontal direction, each first rib being perpendicular to each second rib, each first rib being disposed crosswise to each second rib so as to form a grid, each third rib being located between two adjacent first ribs in the first horizontal direction, each third rib being parallel to each first rib, each third rib being perpendicular to each second rib, each fourth rib being located between two adjacent second ribs in the second horizontal direction, each fourth rib being parallel to each second rib, each of the fourth ribs is perpendicular to each of the first ribs, a diameter of each of the first ribs and the second ribs is greater than or equal to 5mm and less than 7 mm, and a diameter of each of the third ribs and the fourth ribs is greater than or equal to 2 mm and less than 3 mm.

7. The outdoor unit of claim 6, wherein the minimum distance between the wind wheel and the mesh cover in the up-down direction is L3, and L3 satisfies: l3 is more than or equal to A2 and less than or equal to 150mm, wherein A2 is a second preset value.

8. The outdoor unit of claim 7, wherein A2 is 90mm or more.

9. The outdoor unit of claim 1, further comprising an air guide ring, wherein the air guide ring is disposed in the first cavity, the air guide ring is connected to the casing and sleeved on the wind wheel, an upper end of the air guide ring is located above an upper end of the wind wheel, a minimum distance between the air guide ring and the wind wheel in a radial direction of the wind wheel is L4, and L4 satisfies: l4 is more than 0 and less than or equal to 0.02D.

10. The outdoor unit of claim 9, wherein L4 satisfies: l4 is more than or equal to 0.013D and less than or equal to 0.017D.