CN218864346U - Outdoor unit of air conditioner and air conditioning system - Google Patents

Abstract

The utility model relates to an air conditioner technical field, concretely relates to outer machine of air-conditioner and air conditioning system. The utility model provides an outdoor machine of air-conditioner includes first heat exchanger, base and second heat exchanger, first heat exchanger is the U-shaped, and first heat exchanger is installed and is formed one side open-ended on the base and hold the chamber, and the second heat exchanger sets up at the opening part, and when the outdoor machine of air-conditioner was operated, the air current in the outside entered into behind the second heat exchanger heat transfer of the three lateral wall of first heat exchanger and opening part and holds the intracavity, under the prerequisite that does not change the outdoor machine volume of air-conditioner, provides bigger return air area, and the reinforcing return air volume, and then can reduce the air current blocking phenomenon, reduce the flow instability in wind channel inner flow field, promote fan operating efficiency, reduce the eddy current noise.

Description

Outdoor unit of air conditioner and air conditioning system

Technical Field

The utility model relates to an air conditioner technical field, concretely relates to outer machine of air-conditioner and air conditioning system.

Background

The air conditioner generally includes indoor set and off-premises station, the off-premises station includes the low pressure jar, a compressor, the cross valve, outdoor heat exchanger, fan isotructure, outdoor heat exchanger is U-shaped and side direction setting on the chassis, the upside of U-shaped outdoor heat exchanger forms the air outlet, set up the wind channel subassembly in air outlet department, outdoor heat exchanger, form one side open-ended between chassis and the wind channel subassembly and hold the chamber, the three lateral wall face of U-shaped outdoor heat exchanger is for and holds the air intake of chamber intercommunication, the air current in the outside is under the suction effect of wind channel subassembly, after the outdoor heat exchanger heat transfer, enter into and hold the chamber, and the wind channel subassembly through the air outlet discharges. However, the existing U-shaped outdoor heat exchanger has the defects of three-side air inlet, small air inlet area, small air inlet amount, large wind resistance, uneven flow of a flow field in an air channel and influence on the operation efficiency of an air channel assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the existing U-shaped outdoor heat exchanger has the disadvantages of three-side air inlet, small air inlet area, small air inlet amount, large wind resistance, uneven flow field in an air channel and influence on the operation efficiency of an air channel assembly.

In order to solve the technical problem, an embodiment of the utility model provides an outdoor unit of air conditioner, include: the heat exchanger comprises a first heat exchanger, a base and a second heat exchanger; the first heat exchanger is U-shaped, the first heat exchanger is installed on the base, a containing cavity with an opening at one side is formed between the first heat exchanger and the base, and the second heat exchanger is arranged at an opening of the containing cavity.

According to the utility model discloses an embodiment, the outer machine of air-conditioner still includes automatically controlled box, automatically controlled box is located the downside of second heat exchanger.

According to the utility model discloses an embodiment, the opening that holds the chamber includes the first installing zone that is located the upper portion and the second installing zone that is located the lower part, the second heat exchanger is fixed in first installing zone, automatically controlled box corresponds the second installing zone sets up.

According to the utility model discloses an embodiment, automatically controlled box covers the second installing zone, just automatically controlled box can rotate in order to open or close the second installing zone.

According to the utility model discloses an embodiment, automatically controlled box is equipped with two, two automatically controlled box all corresponds the second installing zone sets up, and two form between the automatically controlled box with hold the maintenance clearance of chamber intercommunication.

According to the utility model discloses an embodiment, the outer machine of air-conditioner still includes the access panel, the access panel covers the second installing zone, automatically controlled box is located the inboard of access panel.

According to the utility model discloses an embodiment, the outer machine of air-conditioner still includes automatically controlled box, automatically controlled box is located the upside of first heat exchanger.

According to the utility model discloses an embodiment, the outer machine of air-conditioner still includes the wind channel subassembly, the wind channel subassembly includes fan and water conservancy diversion circle, the upper end of first heat exchanger forms the air outlet, the water conservancy diversion circle is located the air outlet upside and with the air outlet intercommunication, the fan is located in the water conservancy diversion circle.

According to the utility model discloses an embodiment, work as automatically controlled box is located during the first heat exchanger upside, automatically controlled box is equipped with two, and two automatically controlled box is located the relative both sides of water conservancy diversion circle.

According to the utility model discloses an embodiment, the upper end of first heat exchanger is equipped with the upper cover, the upper cover first heat exchanger with form one side open-ended between the base hold the chamber, on cover seted up with hold the air outlet of chamber intercommunication, the water conservancy diversion circle corresponds the position of air outlet is located on covering.

According to the utility model discloses an embodiment, the second heat exchanger is flat.

An embodiment of another aspect of the present invention provides an air conditioning system, including an air conditioner indoor unit, and the air conditioner outdoor unit according to the above embodiments.

The utility model has the advantages that: the embodiment of the utility model provides a first heat exchanger of fan package, base and second heat exchanger, first heat exchanger is the U-shaped, and first heat exchanger is installed and is formed one side open-ended on the base and hold the chamber, and the second heat exchanger sets up at the opening part, and when the outer machine of air-conditioner was operated, the air current in the outside entered into after the second heat exchanger heat transfer of the three lateral wall of first heat exchanger and opening part and holds the intracavity, under the prerequisite that does not change the outer machine volume of air-conditioner, provides bigger return air area, and the reinforcing return air volume, and then can reduce the air current blocking phenomenon, reduce the flow instability in wind channel inner flow field, promote fan operating efficiency, reduce the eddy current noise.

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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

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

fig. 2 is a schematic structural view illustrating a panel for removing an access panel of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating an outdoor unit of an air conditioner according to another embodiment of the present invention;

fig. 4 is a schematic structural view of an outdoor unit of an air conditioner according to still another embodiment of the present invention;

fig. 5 is a perspective view of a fan according to an embodiment of the present invention;

fig. 6 is a top view of a fan according to an embodiment of the present invention;

fig. 7 is a bottom view of a fan according to an embodiment of the present invention;

fig. 8 is a front view of a fan according to an embodiment of the present invention;

FIG. 9 is a schematic view of the air duct assembly.

An icon: 1-an air conditioner outdoor unit; 11-a first heat exchanger; 111-a containment chamber; 112-access panel; 12-a second heat exchanger; 13-an electronic control box; 14-a compressor; 15-a low pressure tank; 16-a base; 17-upper cover; 18-a fan; 181-a hub; 182-fan blades; 183-first fairing; 1831-first rectifying surface; 1832-leading wing; 184-a second fairing; 1841-second rectifying surface; 1842-rear guide wing; 19-a flow guide ring; 191-a second guide vane; 192-rear fixed block; 193-second guide ring.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understandable, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description, and without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides an outdoor unit 1 for an air conditioner, including: a first heat exchanger 11, a base 16 and a second heat exchanger 12; the first heat exchanger 11 is U-shaped, the first heat exchanger 11 is installed on a base 16, an accommodating cavity 111 with an opening at one side is formed between the first heat exchanger 11 and the base 16, and the second heat exchanger 12 is arranged at the opening of the accommodating cavity 111.

An outdoor heat exchanger of an outdoor unit of an existing air conditioner is U-shaped, the outdoor heat exchanger is laterally arranged on a base 16, an accommodating cavity 111 with an opening at one side is formed in the outdoor heat exchanger, air outside the outdoor heat exchanger is exhausted from an air outlet after exchanging heat through the outdoor heat exchanger under the driving of an air duct assembly, and air flow exchanges heat with the outdoor heat exchanger when passing through the outdoor heat exchanger to take away heat or cold of the outdoor heat exchanger, wherein three side walls of the U-shaped outdoor heat exchanger serve as air inlets, the air inlet amount is insufficient, the problem of air flow blockage exists, and the uniformity of an air duct flow field is influenced. In the outdoor unit 1 of air conditioner provided by this embodiment, the second heat exchanger 12 is disposed at the opening of the first heat exchanger 11, and the outside air flows enter the accommodating cavity 111 after heat exchange through the three side walls of the first heat exchanger 11 and the second heat exchanger 12 at the opening, so as to provide a larger return air area and enhance the return air volume on the premise of not changing the volume of the outdoor unit 1 of air conditioner, thereby reducing the air flow blockage, reducing the flow instability of the flow field in the air duct, improving the operation efficiency of the fan 18, and reducing the eddy noise.

As shown in fig. 1 and 2, in this embodiment, the outdoor unit 1 further includes an electronic control box 13, the electronic control box 13 is disposed at a lower side of the second heat exchanger 12, the electronic control box 13 of the conventional outdoor unit 1 is disposed at an upper end of an opening of the outdoor heat exchanger, an air outlet of the outdoor unit 1 is also disposed at an upper side, an air flow enters the accommodating cavity 111 after heat exchange by the heat exchanger, and when the accommodating cavity 111 flows to the air outlet at the upper side, the electronic control box 13 may block the air flow, so that a flow field in the accommodating cavity 111 is affected. In this embodiment, the second heat exchanger 12 is disposed at the upper end, and the electronic control box 13 is disposed at the lower side of the second heat exchanger 12, that is, the installation position of the electronic control box 13 moves downward, so that the influence of the electronic control box 13 on the flow field in the accommodating cavity 111 can be reduced, the air flow circulation efficiency of the outdoor unit 1 can be improved, and the performance of the outdoor unit 1 can be further improved.

According to an embodiment of the present invention, as shown in fig. 1 and fig. 2, the opening of the accommodating cavity 111 includes a first mounting area located at an upper portion and a second mounting area located at a lower portion, the second heat exchanger 12 is fixed to the first mounting area, and the electronic control box 13 is disposed corresponding to the second mounting area; the height of the opening is consistent with that of the first heat exchanger 11, the second heat exchanger 12 is arranged at the top end of the opening, and the area of the opening where the second heat exchanger 12 is arranged is a first mounting area; the second heat exchanger 12 is flat, the top end of the second heat exchanger 12 is flush with the top end of the first heat exchanger 11, and the left end and the right end of the second heat exchanger 12 are respectively connected with the first heat exchangers 11 on the two sides of the opening, so that the second heat exchanger 12 covers the first installation area. The opening is located at the lower side of the first installation area to form a second installation area, the second installation area may completely cover an opening space at the lower side of the first installation area, the second installation area may also be an opening space only covering a part of the lower side of the first installation area, that is, the opening of the accommodating cavity 111 may have other maintenance areas communicated with the accommodating cavity 111 besides the first installation area and the second installation area, only the area covered by the second heat exchanger 12 is the first installation area, and the area corresponding to the electronic control box 13 is the second installation area. The second installation area may be disposed at the bottom of the opening, or may be disposed in the middle of the opening, and the second installation area may also be adjacent to the first installation area, that is, the electronic control box 13 may be disposed adjacent to the second heat exchanger 12.

Optionally, as shown in fig. 2, in this embodiment, the electronic control box 13 and the second heat exchanger 12 are arranged at an interval, and a certain interval is also provided between the electronic control box 13 and the base 16, that is, the electronic control box 13 is arranged in an open middle region, and an overhaul region communicated with the accommodating cavity 111 is formed between the electronic control box 13, the second heat exchanger 12, and the base 16. In order to ensure the relative sealing performance of the accommodating cavity 111 and prevent external rain, dust or solid from entering the accommodating cavity 111 and damaging the components such as the compressor 14 in the accommodating cavity 111, as shown in fig. 1 and 4, the outdoor unit 1 further includes a service panel 112, and the service panel 112 covers the opening except for the second heat exchanger 12 and prevents rain and the like from entering the accommodating cavity 111. When the components in the accommodating cavity 111 need to be overhauled, the overhaul panel 112 can be opened, and then the components in the accommodating cavity 111 can be repaired or replaced through the electric control box 13 and the second heat exchanger 12 and the overhaul region between the electric control box 13 and the base 16.

As shown in fig. 2, in this embodiment, the electronic control box 13 can rotate, in an assembly state, the electronic control box 13 covers the second installation area, when the components in the accommodating chamber 111 need to be repaired or replaced, the access panel 112 is opened, the electronic control box 13 is rotated, the second installation area is opened, at this time, the second installation area and the access area are all in an open state, that is, the opening of the accommodating chamber 111 is in an open state except for the area of the second heat exchanger 12, and other areas are all in an open state, so that an operator can repair or replace the components in the accommodating chamber 111 through the space of the second installation area and the access area, the operation space is larger, and the operator can more conveniently repair or replace the components.

As shown in fig. 2, the end of one side wall of the electronic control box 13 is rotatably connected to one first heat exchanger 11 through a hinge, and the other end of the electronic control box 13 can rotate around the hinge to open or close the second installation area; certainly, in this embodiment, the electronic control box 13 may also be rotated by other manners, for example, a shaft seat is disposed on the base 16, a shaft hole is disposed on the shaft seat, a rotating shaft is fixed on one side of the electronic control box 13, and the electronic control box 13 is rotated by the rotating fit between the rotating shaft and the shaft hole, so as to open or close the second installation area of the electronic control box 13.

According to another embodiment of the present invention, as shown in fig. 3, there are two electric control boxes 13, two electric control boxes 13 are disposed corresponding to the second installation area, and an overhaul gap communicated with the accommodating cavity 111 is formed between the two electric control boxes 13; in this embodiment, automatically controlled box 13 is equipped with two, and two automatically controlled boxes 13 all correspond the second installing zone sets up, and form the maintenance clearance in the position that corresponds the second installing zone between two automatically controlled boxes 13, overhaul the clearance and hold chamber 111 intercommunication, when needing to overhaul the component that holds in chamber 111, open earlier the access panel 112 that is located the outside, then the operation personnel just can maintain or change the component that holds in chamber 111 through the maintenance clearance between two automatically controlled boxes 13, and it is more convenient to operate. Optionally, in this embodiment, the two electronic control boxes 13 are both of a flat plate structure, and the two electronic control boxes 13 are respectively disposed on two opposite sides of the bottom of the opening, that is, one side edge of each electronic control box 13 is respectively connected to the corresponding side wall of the first heat exchanger 11, in this embodiment, one large electronic control box 13 is separately disposed into two small electronic control boxes 13, and the two electronic control boxes 13 are disposed near the edge of the opening of the second heat exchanger 12, so that interference of the electronic control boxes 13 on a flow field generated in the accommodating cavity 111 by the air duct assembly can be reduced, and an air outlet effect is improved. Preferably, as shown in fig. 3, in this embodiment, two electronic control boxes 13 are disposed at the bottom of the accommodating cavity 111 and correspond to the second installation area, and the access panel 112 covers the second installation area, that is, the access panel 112 covers all areas of the opening except the first installation area, so as to achieve the sealing and blocking effects with the accommodating cavity 111.

According to another embodiment of the present invention, as shown in fig. 4, the outdoor unit 1 further includes an electric control box 13, and the electric control box 13 is disposed on the upper side of the first heat exchanger 11; in this embodiment, automatically controlled box 13 does not set up in holding chamber 111, and it is also that automatically controlled box 13 does not lie in the wind channel, consequently can avoid automatically controlled box 13 to flow field production in the wind channel to automatically controlled box 13 sets up and holds the chamber 111 outside, when overhauing automatically controlled box 13, need not open and hold chamber 111, overhauls more conveniently. In addition, because automatically controlled box 13 does not set up at the opening part that holds chamber 111 or hold in the chamber 111, consequently when overhauing components such as compressor 14 that hold in the chamber 111, only need open access panel 112, then just can overhaul the component that holds in the chamber 111 through the opening of second heat exchanger 12 downside, avoided the hindrance of automatically controlled box 13, overhaul the space bigger, overhaul and connect more conveniently.

According to the utility model discloses an embodiment, the outdoor machine 1 of air-conditioner still includes the wind channel subassembly, and the wind channel subassembly includes fan 18 and water conservancy diversion circle 19, the upper end of first heat exchanger 11 forms the air outlet, water conservancy diversion circle 19 is located the air outlet upside and with the air outlet intercommunication, fan 18 is located in the water conservancy diversion circle 19. When the outdoor unit 1 of the air conditioner operates, the fan 18 rotates, the air flow enters the accommodating cavity 111 after heat exchange through the first heat exchanger 11 and the second heat exchanger 12 from the outside, and then is discharged from the air outlet at the upper side, and the fan 18 provides kinetic energy for the circulation of the air flow. Optionally, as shown in fig. 4, when the electronic control box 13 is disposed on the upper side of the first heat exchanger 11, two electronic control boxes 13 are disposed, and the two electronic control boxes 13 are located on two opposite sides of the flow guide ring 19; in this embodiment, one large electronic control box 13 is replaced by two small electronic control boxes 13, so that the size of the electronic control box 13 can be reduced, the length of the electronic control box 13 is prevented from exceeding the length or width of the first heat exchanger 11, that is, the electronic control box 13 cannot exceed the range of the first heat exchanger 11 when being installed on the upper side of the first heat exchanger 11, the electronic control box 13 is prevented from occupying other spaces, and the volume of the whole machine is reduced; of course, in this embodiment, the two electronic control boxes 13 may also not be symmetrically disposed about the air guiding ring 19, for example, the two electronic control boxes 13 are disposed on the same side of the air guiding ring 19, which can also achieve the purpose of moving the electronic control boxes 13 out of the accommodating cavity 111 to reduce interference with the flow field in the accommodating cavity 111.

As shown in fig. 1 to 4, an upper cover 17 is disposed at an upper end of the first heat exchanger 11, the accommodating cavity 111 with an opening at one side is formed among the upper cover 17, the first heat exchanger 11 and the base 16, an air outlet communicated with the accommodating cavity 111 is disposed on the upper cover 17, and a position of the deflector ring 19 corresponding to the air outlet is disposed on the upper cover 17; the upper end of the accommodating cavity 111 is sealed by the upper cover 17, so that the airflow can only flow out through the air outlet and pass through the fan 18; optionally, in this embodiment, a shell is disposed outside the first heat exchanger 11, the shell is a sheet metal part, and the first heat exchanger 11 is protected by the shell, where the shell is in a bracket form or a grid form, so that the airflow can pass through the shell and enter the accommodating cavity 111 through the first heat exchanger 11.

According to an embodiment of the present invention, as shown in fig. 2 and 3, the outdoor unit 1 further includes a compressor 14, a low pressure tank 15 and a four-way valve, wherein the compressor 14, the low pressure tank 15 and the four-way valve are all disposed in the accommodating chamber 111. The second installation area corresponds to the installation position of the compressor 14, and the outdoor unit 1 of the air conditioner mainly maintains the compressor 14, so that the second installation area corresponds to the position of the compressor 14, when the compressor 14 needs to be overhauled, only the overhauling plate 112 needs to be opened, and then the electric control box 13 is rotated or the compressor 14 is directly maintained and replaced from the overhauling gap between the two electric control boxes 13, so that the operation is more convenient.

As shown in fig. 5 to 8, in this embodiment, the fan 18 includes a hub 181 and a fan blade 182, a plurality of fan blades 182 are disposed on a circumferential outer side wall of the hub 181, and the plurality of fan blades 182 are disposed on a circumferential outer wall of the hub 181 at intervals; as shown in fig. 5 to 8 and the drawings, the hub 181 is cylindrical, the outer wall of the cylindrical rotating hub 181 is connected with a plurality of blades 182, and the blades 182 are distributed at intervals in the circumferential direction of the hub 181. The fan blades 182 are substantially fan-shaped, one end of the fan blades 182 connected with the outer wall of the hub 181 is narrow, and the other opposite end is wide; the hub 181 drives the fan blades 182 to rotate, so as to drive the air from the air inlet side to the air outlet side, and the heat of the first heat exchanger 11 and the second heat exchanger 12 is taken away by the air flow.

As shown in fig. 5, 7 and 8, a first rectifying mechanism 183 is disposed on the air inlet side of the hub 181, and a first rectifying surface 1831 is formed on the surface of the first rectifying mechanism 183, wherein the first rectifying surface 1831 may be a curved surface or a planar structure. Because the first rectifying surface 1831 is formed on the first rectifying mechanism 183, after the airflow entering from the air inlet side of the hub 181 contacts the first rectifying surface 1831, the airflow is adsorbed on the first rectifying surface 1831 due to the coanda effect and flows along the first rectifying surface 1831, so that the flow field at the hub 181 is better, the incoming flow at the hub 181 is rectified by utilizing the coanda effect, the aerodynamic separation at the air outlet side of the axial flow fan 18 is reduced, the energy loss is reduced, the work is enhanced, and the operating efficiency of the fan 18 is improved.

As shown in fig. 5, 7 and 8, the first fairing 183 is further provided with a leading wing 1832, and the leading wing 1832 is used for guiding the airflow to the trailing edge of the fan blade 182; when the fan 18 operates, the hub 181 drives the fan blades 182 to rotate, the airflow enters from the air inlet side and flows out from the air outlet side, the hub 181 also drives the front guide wings 1832 to rotate synchronously, the front guide wings 1832 rotate to drive the airflow to do work, the front guide wings 1832 guide the airflow to impact the tail edge of the fan blades 182, so as to enhance the kinetic energy at the tail edge of the fan blades 182, slow down the pneumatic separation phenomenon at the tail edge of the fan blades 182, reduce the pneumatic separation energy loss, improve the work efficiency of the fan blades 182, enhance the work capacity of the fan blades 182, and further enhance the overall performance of the fan 18.

According to an embodiment of the present invention, as shown in fig. 5 and 7, N1 leading wings 1832 are provided, N fan blades 182 are provided, N1 is greater than or equal to N, and N1 is an integer multiple of N; that is, the number of the front guiding wings 1832 is greater than or equal to the number of the blades 182, each blade 182 corresponds to at least one front guiding wing 1832 on the air inlet side, and the front guiding wings 1832 guide the air flow to the tail edge of the corresponding blade 182, so that each blade 182 can enhance the kinetic energy at the tail edge, slow down the aerodynamic separation phenomenon at the tail edge of the blade 182, and reduce the aerodynamic separation energy loss. As shown in fig. 5, 7 and 8, in this embodiment, four fan blades 182 are provided, and four leading wings 1832 are provided, that is, N1= N, each fan blade 182 corresponds to one leading wing 1832, and kinetic energy at a trailing edge of each fan blade 182 can be enhanced by the corresponding leading wing 1832, so as to slow down a situation of aerodynamic separation at the trailing edge, thereby enhancing work capacity of the fan blade 182.

According to the utility model discloses an embodiment, wheel hub 181 is cylindricly, the distance of the epitaxial rotation orbit of fan blade 182 to wheel hub 181 axis is R, preceding wing 1832 is epitaxial to be rotated the orbit extremely the distance of wheel hub 181 axis is R1, and 0.1R < R1 < R.

According to an embodiment of the present invention, the first rectifying surface 1831 has a gradually increasing sectional area in a direction from the air inlet side to the air outlet side; in this embodiment, the surface area of the first rectification surface 1831 is gradually increased from the air outlet side to the air inlet side, that is, from the air inlet side to the air outlet side, and is inclined from the middle to the outside, so that after contacting the first rectification surface 1831, the airflow can move on the hub 181 toward the air outlet side along the first rectification surface 1831, and further a better flow field can be formed near the hub 181, so that the airflow at the air outlet side is more uniform, energy loss is reduced, work is enhanced, and the operating efficiency of the fan 18 is improved.

According to an embodiment of the present invention, as shown in fig. 5 to 8, the first rectifying mechanism 183 is bullet-shaped, that is, the first rectifying surface 1831 is a smooth curved surface structure, so that the coanda effect of the airflow on the first rectifying surface 1831 is better, the airflow is subjected to a smaller wind resistance when flowing, and the energy loss can be reduced.

According to another embodiment of this embodiment, the first rectifying mechanism 183 is in a drop shape, that is, the first rectifying mechanism 183 is in an elliptical-like structure, and the first rectifying surface 1831 is also in a curved surface structure, which can also achieve the purpose of improving the flow field of the hub 181 through the first rectifying surface 1831.

According to another embodiment of the present invention, the first rectifying mechanism 183 is a hemisphere, and the sphere is cut along any plane to form a structure, and at this time, the first rectifying surface 1831 is a circular arc surface, so that the airflow flows more smoothly on the first rectifying surface 1831.

In the above embodiment of the present invention, as shown in fig. 8, the end of the first fairing 183 connected to the hub 181 is circular and is coaxially disposed with the hub 181, the end of the first fairing 183 connected to the hub 181 is circular and has a radius D, and the radius of the hub 181 is D, and 0.9d is restricted to "D" 1.1d; optionally, in this embodiment, D = D, that is, the radius of the hub 181 is equal to the radius of the end of the first rectifying mechanism 183 connected to the hub 181, so that when the airflow flows from the first rectifying surface 1831 to the surface of the hub 181, the flow is smoother; of course, in this embodiment, the radius of the hub 181 may also be slightly larger or smaller than the radius of the first fairing 183 near the end of the hub 181, which also can achieve the purpose of the airflow flowing from the first fairing surface 1831 to the surface of the hub 181.

According to an embodiment of the present invention, as shown in the drawings, the height of the first rectifying mechanism 183 is h,0.6d is restricted to h or restricted to 3d, preferably, in this embodiment, the height of h = d, that is, the height of the first rectifying mechanism 183 is equal to the radius of the first rectifying mechanism 183, and then the first rectifying mechanism 183 is similar to a hemisphere, so that the wall-attached effect of the airflow is better; in this embodiment, the first fairing 183 is preferably sharp and long to avoid a flat and wide shape (i.e. the height h of the first fairing 183 is much smaller than the radius d of the first fairing 183), so as to better enable the airflow to flow along the first fairing surface 1831.

According to an embodiment of the present invention, as shown in fig. 5, fig. 6 and fig. 8, a rear guiding wing 1842 is disposed at one end of the air outlet side of the hub 181. When the hub 181 rotates, the rear guide wings 1842 are driven to rotate synchronously, and the rear guide wings 1842 drive the airflow to do work at the air outlet end of the hub 181, so that the backflow generated at the air outlet end of the hub 181 is inhibited, the work-doing capacity of the fan blades 182 is enhanced, the system efficiency is improved, and the noise is reduced.

According to an embodiment of the present invention, as shown in fig. 5 and 6, the rear guide wing 1842 is provided with N2, the fan blade 182 is provided with N, N2 is greater than or equal to N, and N2 is an integer multiple of N. That is, the number of the rear guide wings 1842 is greater than or equal to the number of the fan blades 182, each fan blade 182 corresponds to at least one rear guide wing 1842 on the air outlet side, and the back flow and the energy loss generated at the air outlet end of the hub 181 are reduced by the rear guide wings 1842 acting. As shown in fig. 5 and 6, in the present embodiment, there are four fan blades 182, and there are four rear guide vanes 1842, that is, N2= N, and each fan blade 182 corresponds to one rear guide vane 1842. Of course, in this embodiment, the number of the rear guide wings 1842 corresponding to each fan blade 182 may also be two, three, four, and the like, that is, N2 is twice, three times, four times, and the like of N.

As shown in fig. 6 and 8, the hub 181 is cylindrical, the distance from the extending rotation track of the fan blade 182 to the axis of the hub 181 is R, and the distance from the extending rotation track of the rear guide wing 1842 to the axis of the hub 181 is R2, where R2 is greater than 0.2R and less than 0.5R.

According to an embodiment of the present invention, as shown in fig. 5, fig. 6 and fig. 8, the second fairing 184 is disposed at one end of the air outlet side of the hub 181, and the rear guide wing 1842 is disposed on the second fairing 184. The surface of the second rectification mechanism 184 forms a second rectification surface 1841, and the sectional area of the second rectification mechanism 184 in the direction from the air inlet side to the air outlet side is gradually reduced. The rear guide wing 1842 is installed by arranging the second rectification mechanism 184, and meanwhile, a second rectification surface 1841 is formed on the surface of the second rectification mechanism 184, so that through the wall attachment effect, the airflow can flow along the second rectification surface 1841, and the uniformity of the airflow at the air outlet end of the fan 18 is adjusted. In this embodiment, the second rectifying mechanism 184 and the first rectifying mechanism 183 have the same structure, and therefore, the specific structure thereof can refer to the first rectifying mechanism 183 in the above embodiment. Of course, in the present application, the rear guide wing 1842 may also be directly connected to the air outlet end of the hub 181, and the function of rectifying the air through the rear guide wing 1842 can also be achieved.

According to an embodiment of the present invention, as shown in fig. 9, the air duct assembly further includes a first guide vane (not shown in the figure) and a second guide vane 191, the first guide vane is disposed on the air inlet side of the fan 18, and the second guide vane 191 is disposed on the air outlet side of the fan 18; the first guide vane is arranged to rectify the airflow before entering the fan blade 182, adjust the angle of the airflow emitted to the surface of the fan blade 182 and change the included angle of the impact fan blade 182, so that the working efficiency of the whole air duct assembly can be improved, and the energy loss is reduced; the second guide vane 191 is arranged on the air outlet side of the guide ring 19, so that the circumferential speed of air flow on the air outlet side can be converted into the axial speed, the static pressure resistance can be improved, the work efficiency is improved, and the noise is reduced.

According to an embodiment of the present invention, the air duct assembly further includes a first guide ring (not shown), a second guide ring 193, a front fixing block (not shown), and a rear fixing block 192; the front fixed block is arranged in the first guide ring, the first guide ring is arranged at an air inlet of the fan 18, one end of the first guide vane is connected with the front fixed block, and the other end of the first guide vane is connected with the first guide ring; the rear fixed block 192 is arranged in the second guide ring 193, the second guide ring 193 is arranged at the air outlet of the fan 18, one end of the second guide vane 191 is connected with the rear fixed block 192, and the other end of the second guide vane is connected with the second guide ring 193. In this embodiment, the first guide vane is fixed by the first guide ring, the second guide vane 191 is fixed by the second guide ring 193, the first guide ring and the second guide ring 193 may be integrated with the guide ring 19 or split, and then the first guide ring and the second guide ring 193 are fixed to the guide ring 19 by welding screws.

The utility model also provides an air conditioning system, including air conditioner indoor unit, still include above-mentioned arbitrary embodiment the outer machine of air conditioner 1, air conditioner indoor unit includes indoor heat exchanger, indoor fan isotructure. Since the outdoor unit 1 has better heat exchange performance, the operation performance of the entire air conditioning system can be improved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (12)

1. An outdoor unit for an air conditioner, comprising: a first heat exchanger (11), a base (16) and a second heat exchanger (12);

the heat exchanger is characterized in that the first heat exchanger (11) is U-shaped, the first heat exchanger (11) is installed on the base (16), a containing cavity (111) with one side opened is formed between the first heat exchanger (11) and the base (16), and the second heat exchanger (12) is arranged at an opening of the containing cavity (111).

2. The outdoor unit of claim 1, further comprising an electric control box (13), wherein the electric control box (13) is located at a lower side of the second heat exchanger (12).

3. The outdoor unit of claim 2, wherein the opening of the receiving chamber (111) includes a first mounting area at an upper portion and a second mounting area at a lower portion, the second heat exchanger (12) is fixed to the first mounting area, and the electric control box (13) is disposed corresponding to the second mounting area.

4. The outdoor unit of claim 3, wherein the electric control box (13) covers the second installation area, and the electric control box (13) can be rotated to open or close the second installation area.

5. The outdoor unit of claim 3, wherein there are two electrical control boxes (13), two electrical control boxes (13) are disposed corresponding to the second mounting area, and an access gap communicating with the accommodating chamber (111) is formed between the two electrical control boxes (13).

6. The outdoor unit of claim 5, further comprising an access panel (112), wherein the access panel (112) covers the second installation area, and wherein the electric control box (13) is located inside the access panel (112).

7. The outdoor unit of claim 1, further comprising an electric control box (13), wherein the electric control box (13) is disposed on an upper side of the first heat exchanger (11).

8. The outdoor unit of any one of claims 2 to 7, further comprising an air duct assembly, wherein the air duct assembly comprises a fan (18) and a deflector (19), an air outlet is formed at an upper end of the first heat exchanger (11), the deflector (19) is disposed at an upper side of the air outlet and is in communication with the air outlet, and the fan (18) is disposed in the deflector (19).

9. The outdoor unit of claim 8, wherein when the electric control box (13) is disposed on the upper side of the first heat exchanger (11), two electric control boxes (13) are disposed, and the two electric control boxes (13) are disposed on opposite sides of the deflector (19).

10. The outdoor unit of claim 8, wherein an upper cover (17) is disposed at an upper end of the first heat exchanger (11), the accommodating cavity (111) with one side open is formed among the upper cover (17), the first heat exchanger (11) and the base (16), an air outlet communicated with the accommodating cavity (111) is formed on the upper cover (17), and the position of the deflector corresponding to the air outlet is disposed on the upper cover (17).

11. The outdoor unit of any one of claims 1 to 7, wherein the second heat exchanger (12) has a flat plate shape.

12. An air conditioning system comprising an indoor unit of an air conditioner, further comprising the outdoor unit of an air conditioner according to any one of claims 1 to 11.

Images