CN209944578U - Outdoor unit of air conditioner and air conditioner with outdoor unit - Google Patents
Outdoor unit of air conditioner and air conditioner with outdoor unit Download PDFInfo
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- CN209944578U CN209944578U CN201920777546.6U CN201920777546U CN209944578U CN 209944578 U CN209944578 U CN 209944578U CN 201920777546 U CN201920777546 U CN 201920777546U CN 209944578 U CN209944578 U CN 209944578U
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Abstract
The utility model discloses an off-premises station of air conditioner and have its air conditioner, the off-premises station includes: the air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell; the outdoor heat exchanger is arranged in the shell; the fan assembly is arranged in the shell to drive air to pass through the air inletTowards the air outlet flow, the fan subassembly includes first wind wheel and second wind wheel, and first wind wheel and second wind wheel constitute to the whirlwind wheel, and on the circulation direction of air current, the second wind wheel is located the low reaches of first wind wheel, and the maximum diameter to the whirlwind wheel is D, and D satisfies: d is more than or equal to 400mm and less than or equal to 450 mm; wherein, the rated refrigerating output of air conditioner is Q, and outdoor heat exchanger's heat transfer area is A, satisfies when Q: when Q is not less than 6500W and not more than 8000W, A satisfies: 22m2≤A≤34m2(ii) a When Q satisfies: when Q is not less than 3400W and not more than 5200W, A satisfies: 11.58m2≤A≤17.89m2. The utility model discloses a heat transfer area of outdoor heat exchanger of off-premises station and the rated refrigerating output Q looks adaptation of air conditioner, the efficiency of air conditioner is high, with low costs.
Description
Technical Field
The utility model belongs to the technical field of air treatment device and specifically relates to an off-premises station of air conditioner and air conditioner that has this off-premises station are related to.
Background
The air conditioner outdoor unit generally adopts the axial flow wind wheel, the air quantity demand of the air conditioner outdoor unit is higher and higher along with the higher and higher energy efficiency of the air conditioner, and when the air quantity is increased, the noise can exceed the standard.
In order to reduce noise, the air conditioner outdoor unit can adopt the counter-rotating wind wheel, but the problem that the heat exchange area of the outdoor heat exchanger is not matched with the rated refrigerating capacity Q of the air conditioner exists in the air conditioner outdoor unit adopting the counter-rotating wind wheel in the related technology, so that the energy efficiency of the air conditioner is influenced or the cost of the air conditioner is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an outdoor unit of air conditioner, the heat transfer area of the outdoor heat exchanger of outdoor unit and the rated refrigerating capacity Q looks adaptation of air conditioner, the efficiency of air conditioner is high, with low costs.
The utility model discloses still provide an air conditioner with above-mentioned off-premises station.
According to the utility model discloses outdoor unit of air conditioner of first aspect embodiment, outdoor unit of air conditioner includes: the air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell; the outdoor heat exchanger is arranged in the shell; a fan assembly disposed in the casing to drive air from the casingThe air inlet faces the air outlet to flow, the fan assembly comprises a first wind wheel and a second wind wheel, the first wind wheel and the second wind wheel form a contra-rotating wind wheel, the second wind wheel is located at the downstream of the first wind wheel in the flowing direction of air flow, the maximum diameter of the contra-rotating wind wheel is D, and D meets the following requirements: d is more than or equal to 400mm and less than or equal to 450 mm; wherein, the rated refrigerating output of air conditioner is Q, the heat transfer area of outdoor heat exchanger is A, when Q satisfies: 6500W is not less than Q not more than 8000W, the A satisfies: 22m2≤A≤34m2(ii) a When the Q satisfies: 3400W is not less than Q is not less than 5200W, the A satisfies: 11.58m2≤A≤17.89m2。
According to the utility model discloses air condensing units, outdoor heat exchanger's heat transfer area and the rated refrigerating output Q looks adaptation of air conditioner, the efficiency of air conditioner is high, with low costs.
In addition, according to the utility model discloses air condensing units, can also have following additional technical characterstic:
according to the utility model discloses an embodiment, outdoor heat exchanger includes the heat exchange tube and establishes a plurality of fins on the heat exchange tube, the internal diameter of heat exchange tube is d Q satisfies: 6500W is less than or equal to Q is less than or equal to 8000W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, 25m2≤A≤30m2(ii) a When d is more than or equal to 7.5mm and less than 8.5mm, 23m2≤A≤34m2(ii) a When d is more than or equal to 6.5mm and less than 7.5mm, 22m2≤A≤31.5m2(ii) a When d is more than or equal to 5.5mm and less than 6.5mm, 22m2≤A≤29m2(ii) a When d is more than or equal to 4.5mm and less than 5.5mm, 22m2≤A≤29m2(ii) a When Q satisfies: when Q is not less than 3400W and not more than 5200W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, 13.16m2≤A≤15.79m2(ii) a When d is more than or equal to 7.5mm and less than 8.5mm, 12.11m2≤A≤17.89m2(ii) a When d is more than or equal to 6.5mm and less than 7.5mm, 11.58m2≤A≤16.58m2(ii) a When d is more than or equal to 5.5mm and less than 6.5mm, 11.58m2≤A≤15.26m2(ii) a When d is more than or equal to 4.5mm and less than 5.5mm, 11.58m2≤A≤15.26m2。
Optionally, the length of the heat exchange tube is L, and Q satisfies: 6500W is less than or equal to Q is less than or equal to 8000W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, L is more than or equal to 31m and less than or equal to 34 m; when d is more than or equal to 7.5mm and less than 8.5mm, L is more than or equal to 37m and less than or equal to 40.5 m; when d is more than or equal to 6.5mm and less than 7.5mm, L is more than or equal to 40m and less than or equal to 48 m; when d is more than or equal to 5.5mm and less than 6.5mm, L is more than or equal to 40m and less than or equal to 54 m; when d is more than or equal to 4.5mm and less than 5.5mm, L is more than or equal to 48m and less than or equal to 61 m; when Q satisfies: when Q is not less than 3400W and not more than 5200W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, L is more than or equal to 16.32m and less than or equal to 17.89 m; when d is more than or equal to 7.5mm and less than 8.5mm, L is more than or equal to 19.47m and less than or equal to 21.32 m; when d is more than or equal to 6.5mm and less than 7.5mm, L is more than or equal to 21.05m and less than or equal to 25.26 m; when d is more than or equal to 5.5mm and less than 6.5mm, L is more than or equal to 21.05m and less than or equal to 28.42 m; when d is more than or equal to 4.5mm and less than 5.5mm, L is more than or equal to 25.26m and less than or equal to 32.11 m.
According to the utility model discloses an embodiment, outdoor heat exchanger includes long limit part and minor face part, the one end of long limit part with the one end of minor face part links to each other, long limit part with have the contained angle between the minor face part, the fan subassembly is located long limit part with between the minor face part, perpendicular to long limit part with in the plane of minor face part, outdoor heat exchanger follows the length of the direction at long limit part place is L1, outdoor heat exchanger follows the length of the direction at minor face part place is L2, L1 with L2 satisfies: L1/L2 is more than or equal to 2 and less than or equal to 4.44.
Optionally, 600mm ≦ L1 ≦ 800 mm.
Optionally, L2 is more than or equal to 180mm and less than or equal to 300 mm.
Optionally, the height of the outdoor heat exchanger is H, and H satisfies: h is more than or equal to 490mm and less than or equal to 550 mm.
Alternatively, the short side portion and the long side portion are vertically disposed.
Optionally, a rotation center line of the counter-rotating wheel is perpendicular to the long side portion, a minimum distance between the counter-rotating wheel and the short side portion is M, and M and D satisfy: m is not less than 0.015D and not more than 0.025D.
Optionally, the first wind wheel is located between the second wind wheel and the long edge portion, a distance between a side end surface of the first hub of the first wind wheel facing the second wind wheel and the long edge portion is N, a maximum rotation diameter of the counter-rotating wind wheel is D, and N and D satisfy: n is more than or equal to 0.15D and less than or equal to 0.45D.
According to the utility model discloses an embodiment, the fan subassembly includes: the first motor is connected with the first wind wheel so as to drive the first wind wheel to rotate; and the second motor is connected with the second wind wheel to drive the second wind wheel to rotate.
According to the utility model discloses air conditioner of second aspect embodiment includes: an outdoor unit according to the embodiment of the first aspect of the present invention; the outdoor unit is suitable for being connected with the indoor unit.
According to the utility model discloses the air conditioner is through setting up the basis the utility model discloses the off-premises station of above-mentioned first aspect embodiment for the air conditioner has the whole advantages that above-mentioned outdoor machine has, and here is no longer repeated.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a front view of an outdoor unit according to some embodiments of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
fig. 4 is a plan view of an outdoor unit according to some embodiments of the present invention, wherein the plan view is partially cut away;
fig. 5 is a front view of an outdoor unit according to other embodiments of the present invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;
fig. 7 is a schematic diagram of a relationship between a ratio C of a heat exchange area of an outdoor heat exchanger of an air conditioner to a heat exchange area of an outdoor heat exchanger of the air conditioner in the prior art and a wind speed B of a counter-rotating wind wheel according to an embodiment of the present invention, wherein a rated refrigerating capacity of the air conditioner in the prior art is the same as that of the air conditioner in an embodiment of the present invention but an outdoor unit of the air conditioner is provided with an axial-flow wind wheel;
reference numerals:
the outdoor unit 100 is provided with a refrigerant circuit,
a machine shell 1, an air inlet 1a, an air outlet 1b,
fan assembly 2, first wind wheel 21, first blade 211, first hub 212; a second wind wheel 22, a second blade 221, a first motor 23, a second motor 24,
an outdoor heat exchanger 3, a long side portion 31, a short side portion 32, and a transition section 33.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
An outdoor unit 100 for an air conditioner according to an embodiment of a first aspect of the present invention will be described with reference to fig. 1 to 7.
As shown in fig. 3, an outdoor unit 100 according to an embodiment of the present invention includes: a casing 1, an outdoor heat exchanger 3 and a fan assembly 2.
As shown in fig. 5 and 6, the casing 1 has an air inlet 1a and an air outlet 1b, the outdoor heat exchanger 3 and the fan assembly 2 are both disposed in the casing 1 and between the air inlet 1a and the air outlet 1b, and the fan assembly 2 is configured to drive air to flow from the air inlet 1a toward the air outlet 1 b. Specifically, when the fan assembly 2 works, the air flow can be driven to enter the casing 1 from the air inlet 1a to exchange heat with the outdoor heat exchanger 3, and the air flow after heat exchange is discharged from the air outlet 1 b.
As shown in fig. 4, the wind turbine assembly 2 includes a first wind turbine 21 and a second wind turbine 22, the first wind turbine 21 and the second wind turbine 22 constitute a counter-rotating wind turbine, the second wind turbine 22 is located downstream of the first wind turbine 21 in the flowing direction of the airflow, the maximum diameter of the counter-rotating wind turbine is D, and D satisfies: d is more than or equal to 400mm and less than or equal to 450 mm. Specifically, as shown in fig. 2, the first wind rotor 21 includes a plurality of first blades 211 spaced apart in the circumferential direction thereof, and the second wind rotor 22 includes a plurality of second blades 221 spaced apart in the circumferential direction thereof. In the direction of circulation of the air flow, the second wind wheel 22 may be located downstream of the first wind wheel 21 and the second wind wheel 22 may be spaced apart from the first wind wheel 21. Since the first wind wheel 21 and the second wind wheel 22 can be arranged oppositely in the direction of airflow circulation, the first wind wheel 21 and the second wind wheel 22 can form a contra-rotating wind wheel, that is, the inclination direction of the first blade 211 of the first wind wheel 21 is opposite to that of the second blade 221 of the second wind wheel 22.
When the wind turbine assembly 2 is in operation, the first wind turbine 21 and the second wind turbine 22 rotate, and the rotation directions of the first wind turbine 21 and the second wind turbine 22 may be opposite. Therefore, the airflow circumferential tangential velocity of the blade outlets of the first blades 211 is opposite to the airflow circumferential tangential velocity of the blade outlets of the second blades 221 and can be partially or completely offset, so that approximately pure axial straight airflow can be obtained, that is, most or even all of the air airflow can be blown out along the axial direction of the fan assembly 2, the wind speed of the fan assembly 2 can be increased, the air supply amount and the air supply distance can be increased, and the air supply efficiency of the fan assembly 2 can be improved.
It can be understood that, compared with a single cross-flow wind wheel, axial-flow wind wheel or diagonal-flow wind wheel, the first wind wheel 21 and the second wind wheel 22 in the counter-rotating wind wheel can rotate simultaneously, so that the air supply quantity of the counter-rotating wind wheel is maximum and the air supply efficiency is highest on the premise that the driving assembly consumes the same power. On the premise of meeting the same air supply quantity requirement, the power consumption of the cyclone wheel is lowest. Therefore, the utility model provides a fan subassembly 2 can play the dual function that promotes air supply efficiency and reduce the energy consumption, has extremely strong practicality, and the noise that its produced simultaneously is low. Optionally, first and second wind wheels 21 and 22 may each be axial flow wind wheels.
As will be understood by those skilled in the art, after the fan assembly 2 is adopted, the air volume and the air speed are increased, so that the heat exchange coefficient of the outdoor heat exchanger 3 can be increased. Compared with the prior art, under the prerequisite of getting the same heat transfer volume, the increase of wind speed and amount of wind is favorable to reducing heat transfer area to compare with prior art, under the prerequisite of getting the same heat transfer volume, through adopting fan assembly 2 in this application embodiment, be favorable to reducing outdoor heat exchanger 3's heat transfer area, thereby be favorable to setting up outdoor heat exchanger 3 ground littleer, save the cost.
However, the problem that the heat exchange area of the outdoor heat exchanger is not matched with the rated refrigerating capacity Q of the air conditioner exists in the outdoor unit adopting the counter-rotating wind wheel in the related art, so that the energy efficiency of the air conditioner is influenced or the cost of the air conditioner is increased.
In order to solve the above problems, the inventor researches the influence of the fan assembly 2 on the heat exchange performance of the outdoor heat exchanger 3, and a large number of experiments show that: the rated refrigerating capacity of the air conditioner is Q, the heat exchange area of the outdoor heat exchanger 3 is A, and when Q is satisfied: when Q is not less than 6500W and not more than 8000W, A satisfies: 22m2≤A≤34m2(ii) a When Q satisfies: when Q is not less than 3400W and not more than 5200W, A satisfies: 11.58m2≤A≤17.89m2. At this time, the heat exchange area of the outdoor heat exchanger 3 is matched with the rated refrigerating capacity Q of the air conditioner, and the air conditioner is high in energy efficiency and low in cost.
According to the utility model discloses off-premises station 100, through setting up interval distribution's first wind wheel 21 and second wind wheel 22 on the air current circulation direction, can play the dual function that promotes air supply efficiency and reduce the energy consumption, can promote fan subassembly 2's practicality. And by making Q satisfy: when Q is not less than 6500W and not more than 8000W, A satisfies: 22m2≤A≤34m2(ii) a Q satisfies: when Q is not less than 3400W and not more than 5200W, A satisfies: 11.58m2≤A≤17.89m2The heat exchange area of the outdoor heat exchanger 3 is matched with the rated refrigerating capacity Q of the air conditioner, and the air conditioner is high in energy efficiency and low in cost.
It should be noted that the outdoor heat exchanger 3 includes a heat exchange tube and a plurality of fins disposed on the heat exchange tube, and the heat exchange area a of the outdoor heat exchanger described in this application refers to the sum of the inner surface area of the heat exchange tube and the outer surface area of the fins.
The maximum diameter of the counter-rotor wheel refers to the larger of the diameter of the first rotor wheel 21 and the diameter of the second rotor wheel 22.
In one embodiment of the present invention, the outdoor heat exchanger 3 is a bagDraw the heat exchange tube and establish a plurality of fins on the heat exchange tube, the internal diameter of heat exchange tube is d, satisfies at Q: 6500W is less than or equal to Q is less than or equal to 8000W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, 25m2≤A≤30m2(ii) a When d is more than or equal to 7.5mm and less than 8.5mm, 23m2≤A≤34m2(ii) a When d is more than or equal to 6.5mm and less than 7.5mm, 22m2≤A≤31.5m2(ii) a When d is more than or equal to 5.5mm and less than 6.5mm, 22m2≤A≤29m2(ii) a When d is more than or equal to 4.5mm and less than 5.5mm, 22m2≤A≤29m2(ii) a When Q satisfies: when Q is not less than 3400W and not more than 5200W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, 13.16m2≤A≤15.79m2(ii) a When d is more than or equal to 7.5mm and less than 8.5mm, 12.11m2≤A≤17.89m2(ii) a When d is more than or equal to 6.5mm and less than 7.5mm, 11.58m2≤A≤16.58m2(ii) a When d is more than or equal to 5.5mm and less than 6.5mm, 11.58m2≤A≤15.26m2(ii) a When d is more than or equal to 4.5mm and less than 5.5mm, 11.58m2≤A≤15.26m2. Therefore, the heat exchange area of the outdoor heat exchanger 3 can be better matched with the rated refrigerating capacity Q of the air conditioner, and the air conditioner has high energy efficiency and low cost.
Further, the length of the heat exchange tube is L, and the following requirements are met at Q: 6500W is less than or equal to Q is less than or equal to 8000W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, L is more than or equal to 31m and less than or equal to 34 m; when d is more than or equal to 7.5mm and less than 8.5mm, L is more than or equal to 37m and less than or equal to 40.5 m; when d is more than or equal to 6.5mm and less than 7.5mm, L is more than or equal to 40m and less than or equal to 48 m; when d is more than or equal to 5.5mm and less than 6.5mm, L is more than or equal to 40m and less than or equal to 54 m; when d is more than or equal to 4.5mm and less than 5.5mm, L is more than or equal to 48m and less than or equal to 61 m; when Q satisfies: when Q is not less than 3400W and not more than 5200W: when d is more than or equal to 8.5mm and less than or equal to 9.9mm, L is more than or equal to 16.32m and less than or equal to 17.89 m; when d is more than or equal to 7.5mm and less than 8.5mm, L is more than or equal to 19.47m and less than or equal to 21.32 m; when d is more than or equal to 6.5mm and less than 7.5mm, L is more than or equal to 21.05m and less than or equal to 25.26 m; when d is more than or equal to 5.5mm and less than 6.5mm, L is more than or equal to 21.05m and less than or equal to 28.42 m; when d is more than or equal to 4.5mm and less than 5.5mm, L is more than or equal to 25.26m and less than or equal to 32.11 m. Therefore, the outdoor heat exchanger 3 can be better matched with the rated refrigerating capacity Q of the air conditioner, and the air conditioner has high energy efficiency and low cost.
In an embodiment of the present invention, as shown in fig. 3, the outdoor heat exchanger 3 includes a long side portion 31 and a short side portion 32, one end of the long side portion 31 is connected to one end of the short side portion 32, the long side portion 31 and the short side portion 32 have an included angle, as shown in fig. 4, the fan assembly 2 is located between the long side portion 31 and the short side portion 32, in a plane perpendicular to the long side portion 31 and the short side portion 32, the length of the outdoor heat exchanger 3 in the direction in which the long side portion 31 is located is L1, the length of the outdoor heat exchanger 3 in the direction in which the short side portion 32 is located is L2, L1 and L2 satisfy: L1/L2 is more than or equal to 2 and less than or equal to 4.44. In the course of studying the influence of the fan assembly 2 on the heat exchange performance of the outdoor heat exchanger 3, the inventor surprisingly found that the length L1 of the outdoor heat exchanger 3 and the length L2 of the outdoor heat exchanger 3 satisfy: L1/L2 is more than or equal to 2 and less than or equal to 4.44, the structural size of the outdoor heat exchanger 3 is reasonably optimized, when the fan assembly 2 drives airflow to flow through the outdoor heat exchanger 3, the wind speeds at different positions of the outdoor heat exchanger 3 are distributed more uniformly, the average wind speed of the outdoor heat exchanger 3 and the heat exchange uniformity at different positions of the outdoor heat exchanger 3 are favorably improved, and therefore the heat exchange effect of the outdoor heat exchanger 3 is favorably further improved.
By making the length L1, the length L2 of the outdoor heat exchanger 3 satisfy: L1/L2 is more than or equal to 2 and less than or equal to 4.44, the structural size of the outdoor heat exchanger 3 is reasonably optimized, when the fan assembly 2 drives airflow to flow through the outdoor heat exchanger 3, the wind speeds at different positions of the outdoor heat exchanger 3 are distributed more uniformly, the average wind speed of the outdoor heat exchanger 3 and the heat exchange uniformity at different positions of the outdoor heat exchanger 3 are favorably improved, and therefore the heat exchange effect of the outdoor heat exchanger 3 is favorably further improved.
It should be explained here that the average wind speed of the outdoor heat exchanger 3 is an average value of the sum of wind speeds at different positions of the outdoor heat exchanger 3.
In some embodiments of the present invention, in order to further increase the average wind speed flowing through the outdoor heat exchanger 3 and improve the heat exchange effect of the outdoor heat exchanger 3, 2.5 is equal to or less than L1/L2 is equal to or less than 4. For example, L1/L2 is 2.55, 2.6, 2.71, 2.85, 2.93, 2.95, 2.96, 2.97, 2.98, 2.99, 3.0, 3.1, 3.15, 3.21, 3.28, 3.3, 3.45, 3.55, 3.59, 3.61, 3.68, 3.7, 3.74, 3.76, 3.82, 3.9, 3.94, 4.95, or 3.99.
In some optional embodiments of the present invention, L1 is 600mm or more and 800mm or less. For example, L1 is 630mm, 650mm, 680mm, 710mm, 740mm, 770mm, 790mm, or 795 mm. The inventor finds that, through making L1 be less than or equal to 600mm and less than or equal to 800mm, the wind speed difference at different positions of the outdoor heat exchanger 3 is further reduced, the wind quantity at different positions of the outdoor heat exchanger 3 is more uniformly distributed, the average wind speed of the outdoor heat exchanger 3 is further improved, the heat exchange effect of the outdoor heat exchanger 3 is further improved, and the cost increase caused by the overlarge length of the outdoor heat exchanger 3 is also avoided.
According to some embodiments of the present invention, L2 is less than or equal to 180mm and less than or equal to 300 mm. For example, L2 is 190mm, 200mm, 210mm, 220mm, 230mm, 240mm, 250mm, 260mm, 265mm, 270mm, 275mm, or 280 mm. The inventor finds that, in practical research, the L1 is larger than or equal to 180mm and smaller than or equal to 300mm, so that the wind speed difference at different positions in the width direction of the outdoor heat exchanger 3 is further reduced, the wind quantity at different positions of the outdoor heat exchanger 3 is more uniformly distributed, the average wind speed of the outdoor heat exchanger 3 is further improved, the heat exchange effect of the outdoor heat exchanger 3 is further improved, and the cost increase caused by the overlarge width size of the outdoor heat exchanger 3 is avoided.
In some examples of the present invention, the height of the outdoor heat exchanger 3 is H, and H satisfies: h is more than or equal to 490mm and less than or equal to 550 mm. For example, H is 495mm, 500mm, 505mm, 510mm, 519mm, 525mm, 530mm, 536mm, 540mm, or 547 mm. The inventor finds that H is more than or equal to 490mm and less than or equal to 550mm in practical research, so that the wind speed difference at different positions of the outdoor heat exchanger 3 in the height direction is further reduced, the wind quantity at different positions of the outdoor heat exchanger 3 is more uniformly distributed, the average wind speed of the outdoor heat exchanger 3 is further improved, the heat exchange effect of the outdoor heat exchanger 3 is further improved, and the cost increase caused by the overlarge height size of the outdoor heat exchanger 3 is also avoided.
In some alternative embodiments of the present invention, the outdoor heat exchanger 3 includes a short side portion 32 and a long side portion 31, the short side portion 32 and the long side portion 31 have an included angle, so as to form the outdoor heat exchanger 3 in an "L" shape, and the included angle between the short side portion 32 and the long side portion 31 is between 80 ° and 110 °. For example between 83 °, 85 °, 89 °, 92 °, 95 °, 97 °, 99 °, 100 °, 105 °, or 109 °.
Alternatively, the short side portion 32 and the long side portion 31 are vertically disposed, whereby not only the structure is simple, but also the manufacturing of the outdoor heat exchanger 3 is facilitated, and at the same time, the structure of the outdoor heat exchanger 3 can be optimized, and the structure of the outdoor heat exchanger 3 is set more reasonably to match with the cabinet 1, saving the installation space.
Further, the rotation center line of the counter-rotating wind wheel extends in the width direction of the outdoor heat exchanger 3. It should be explained here that the rotation center lines of the counter-rotating wind wheels include two rotation center lines, one of which is a rotation center line of the first wind wheel 21, i.e., a first rotation center line, and the other of which is a rotation center line of the second wind wheel 22, i.e., a second rotation center line, and both the first rotation center line and the second rotation center line extend in the width direction of the outdoor heat exchanger 3. The first centerline of rotation and the second centerline of rotation may be collinear.
Specifically, when the short side portion 32 is disposed perpendicular to the long side portion 31, and the rotation center line of the counter-rotor is perpendicular to the long side portion 31 and parallel to the short side portion 32, referring to fig. 3, the minimum distance between the counter-rotor and the short side portion 32 is M, and M and D satisfy: m is not less than 0.015D and not more than 0.025D. For example, M is 0.016D, 0.0172D, 0.0178D, 0.018D, 0.0183D, 0.0186D, 0.019D, 0.0205D, 0.0208D, 0.021D, 0.0216D, 0.022D, 0.0226D, 0.023D, 0.0234D, 0.0238D, 0.0241D, 0.0245D, or 0.0249D, etc. Through the experimental verification of the inventor, the minimum distance M between the contra-rotating wheel and the short-side part 32 and the maximum diameter D of the contra-rotating wheel satisfy that: m is more than or equal to 0.015D and less than or equal to 0.025D, so that the size of the fan assembly 2 is further increased, the air speed and the air quantity of the fan assembly 2 are improved, the heat exchange efficiency of the outdoor heat exchanger 3 is further improved, and the outdoor heat exchanger 3 cannot generate structural interference on the work of the fan assembly 2.
In some further embodiments of the present invention, as shown in fig. 3, the first wind wheel 21 is located between the second wind wheel 22 and the long edge portion 31, so that, in the flowing direction of the air flow, the fan assembly 2 is located at the downstream of the outdoor heat exchanger 3, when the fan assembly 2 works to drive the air flow to flow, the air flow entering the casing 1 exchanges heat with the outdoor heat exchanger 3, and the air flow after exchanging heat further flows through the fan assembly 2 and further flows to the air outlet 1b under the driving of the fan assembly 2.
Specifically, referring to fig. 3, the distance between the end surface of the first hub 212 of the first wind wheel 21 facing the second wind wheel 22 and the long side portion 31 is N, and N and D satisfy: n is more than or equal to 0.15D and less than or equal to 0.45D. For example, N is a parameter such as 0.155D, 0.16D, 0.163D, 0.168D, 0.17D, 0.172D, 0.178D, 0.182D, 0.189D, 193D, 0.2D, 0.21D, 0.219D, 0.226D, 0.235D, 0.24D, 0.244D, 0.25D, 0.29D, 0.3D, 0.32D, 0.39D, or 0.42D. Through experimental verification, the distance N between the end surface of one side of the first hub 212 of the first wind wheel 21 facing the second wind wheel 22 and the long edge part 31 and the maximum diameter D of the counter-rotating wind wheel satisfy: n is more than or equal to 0.15D and less than or equal to 0.45D, which is beneficial to further setting the size of the fan assembly 2 more reasonably and improving the wind speed and the wind quantity of the fan assembly 2, thereby further improving the heat exchange efficiency of the outdoor heat exchanger 3, and the outdoor heat exchanger 3 can not generate structural interference to the work of the fan assembly 2.
In some alternative embodiments of the present invention, the long side portion 31 is connected to the short side portion 32 by an arc-shaped transition section 33. Therefore, the problem of stress concentration caused by direct connection of the long side part 31 and the short side part 32 can be avoided to a certain extent, stress is reduced, the reliability of connection of the long side part 31 and the short side part 32 is improved, and the service life of the outdoor heat exchanger 3 is prolonged.
Alternatively, referring to FIG. 3, the transition section 33 has a radius R that satisfies: r is more than or equal to 67mm and less than or equal to 89 mm. For example, R is 70mm, 72mm, 76mm, 80mm, 81mm, 83mm or 87 mm. Therefore, the reliability of transition between the long side part 31 and the short side part 32 is guaranteed, the structural size of the outdoor heat exchanger 3 is further optimized, the air quantity flowing through the transition section 33 is guaranteed, and the heat exchange effect is improved.
In some optional embodiments of the present invention, the rotation speed ratio between the first wind wheel 21 and the second wind wheel 22 may be 0.8 to 1.25. Specifically, the operating noise generated by the fan assembly 2 is primarily dependent on the wind wheel producing the most noise. Moreover, the noise generated by the fan assembly 2 has a positive correlation with the rotation speed of the first wind wheel 21 and the second wind wheel 22. When the rotating speed ratio between the first wind wheel 21 and the second wind wheel 22 is 0.8-1.25, the rotating speed difference between the first wind wheel 21 and the second wind wheel 22 is small, noise generated by the first wind wheel 21 and the second wind wheel 22 is small, and the working noise of the fan assembly 2 is the sum of the noise generated by the first wind wheel 21 and the noise generated by the second wind wheel 22. On the contrary, when the rotation speed ratio between the first wind wheel 21 and the second wind wheel 22 is less than 0.8 or greater than 1.25, the rotation speed difference between the first wind wheel 21 and the second wind wheel 22 is large, at this time, the wind wheel with the large rotation speed in the first wind wheel 21 and the second wind wheel 22 becomes a main noise source and generates a large noise, and at this time, the noise generated by the fan assembly 2 mainly depends on the noise generated by the main noise source. Therefore, on the premise that the fan assembly 2 generates the same air volume, the noise generated when the rotational speed difference between the first wind wheel 21 and the second wind wheel 22 is large is far greater than the noise generated when the rotational speed difference between the first wind wheel 21 and the second wind wheel 22 is small. From this, through the rotational speed ratio of controlling between first wind wheel 21 and the second wind wheel 22 be 0.8 ~ 1.25, the noise that can greatly reduced fan subassembly 2 produced can promote user's use comfort.
According to the utility model discloses a some embodiments, the rotational speed ratio between first wind wheel 21 and the second wind wheel 22 can be 0.9 ~ 1.1, can further reduce the rotational speed difference between first wind wheel 21 and the second wind wheel 22 from this to can further reduce the noise that fan subassembly 2 produced. Alternatively, the rotation speed ratio between the first wind wheel 21 and the second wind wheel 22 may be 1.0, that is, the rotation speeds of the first wind wheel 21 and the second wind wheel 22 are the same, so that the first wind wheel 21 and the second wind wheel 22 can keep rotating at the same speed, and the operation noise of the fan assembly 2 can be greatly reduced.
According to some embodiments of the present invention, the first wind wheel 21 and the second wind wheel 22 may be driven by different motors, for example, as shown in fig. 6, the fan assembly 2 further includes a first motor 23 and a second motor 24, the first motor 23 may be connected to the first wind wheel 21 to drive the first wind wheel 21 to rotate, and the second motor 24 may be connected to the second wind wheel 22 to drive the second wind wheel 22 to rotate. Therefore, through the arrangement, the first motor 23 and the second motor 24 can be respectively controlled to control the working states of the first wind wheel 21 and the second wind wheel 22, and the operation of the fan assembly 2 can be more convenient.
Optionally, the first motor 23 and the second motor 24 may be step motors, and the step motors have the advantages of stable operation and accurate control of the rotation direction and rotation number thereof, and can improve the air supply stability of the fan assembly 2.
Alternatively, as shown in fig. 6, the first motor 23 may be located downstream of the first wind wheel 21, the second motor 24 may be located upstream of the second wind wheel 22, and the first motor 23 and the second motor 24 may be formed in a "back-to-back" type of mating structure in the circulating direction of the airflow.
Alternatively, the first motor 23 may be located upstream of the first wind wheel 21, the second motor 24 may be located downstream of the second wind wheel 22, and the first motor 23 and the second motor 24 may be formed as a "face-to-face" type of mating structure in the flow direction of the airflow. Alternatively, the first electric machine 23 may be located upstream of the first wind rotor 21 and the second electric machine 24 may be located upstream of the second wind rotor 22 in the direction of circulation of the air flow. Alternatively, the first electric machine 23 may be located downstream of the first wind wheel 21 and the second electric machine 24 may be located downstream of the second wind wheel 22 in the direction of circulation of the air flow.
According to the utility model discloses a some embodiments, fan subassembly 2 can also include two wind-guiding circles, all can inject the wind-guiding space in every wind-guiding circle, and first wind wheel 21 and second wind wheel 22 can be established in the wind-guiding space that corresponds. When the fan assembly works, the air guide ring can play a role in air guide, air flow can be prevented from dispersing all around, and can circulate along the air guide space, so that the air supply efficiency of the fan assembly can be improved. Moreover, because the wind guide ring is sleeved on the corresponding first wind wheel and the second wind wheel, the blade tip leakage vortex generated when the first wind wheel and the second wind wheel rotate can be reduced, and the working noise generated by the fan assembly 2 can be reduced.
The utility model discloses an in some embodiments, the air inlet end of wind-guiding circle can be equipped with first flaring portion, and along the circulation direction of air current, first flaring portion can extend towards the direction that is close to the central axis of wind-guiding circle. It can be understood that the first flared part can increase the air inlet area of the air inlet end of the air guide ring, reduce the circulation resistance of air flow and improve the air collecting effect of the air guide ring.
Optionally, the first flared portion may extend from the air inlet end of the air guide ring to the air outlet end of the air guide ring. Therefore, in the circulation direction of the air flow, the ventilation area of the air guide ring is gradually reduced, so that the circulation speed of the air flow in the air guide ring can be increased, and the air supply efficiency of the fan assembly can be improved.
The inventor adopts the outdoor unit 100 of the above embodiment of the present invention to test the wind speeds at different positions of the outdoor heat exchanger 3 under different L1/L2 ratios, as shown in fig. 2 and 3, 13 equally divided vertical lines are uniformly taken along the direction from the long side portion 31 to the short side portion 32 of the outdoor heat exchanger 3 and are sequentially marked as a1 to a13, 9 equally divided horizontal lines are uniformly taken along the height direction of the outdoor heat exchanger 3 and are sequentially marked as B1 to B9, and the wind volume is tested at the intersection point of the equally divided vertical line and the equally divided horizontal line, so as to obtain the following data:
table 1: L1/L2 is 2.9
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 | A13 | |
| B1 | 0.7 | 2.8 | 3.3 | 4 | 4.8 | 4.1 | 3.8 | 3.7 | 4.2 | 3.7 | 3.7 | 3.7 | 3.2 |
| B2 | 0.4 | 2 | 2.3 | 2.8 | 3.3 | 2.6 | 2.6 | 2.8 | 2.8 | 2.1 | 2.4 | 2.6 | 2.5 |
| B3 | 0.35 | 1.5 | 2.3 | 2.8 | 3.3 | 2.6 | 2.5 | 2.5 | 2.5 | 2.1 | 2.9 | 2.6 | 2.6 |
| B4 | 0.33 | 2 | 2.3 | 2.7 | 3.2 | 2.4 | 2.3 | 2.3 | 2.3 | 2 | 2.7 | 2.8 | 2.5 |
| B5 | 0.36 | 1.8 | 2.3 | 2.8 | 3 | 2.5 | 2.3 | 2.2 | 2.2 | 2.2 | 2.9 | 2.7 | 2.5 |
| B6 | 0.6 | 1.9 | 2.2 | 2.5 | 3.2 | 2.4 | 2.5 | 2.2 | 2.2 | 2.1 | 2.8 | 2.5 | 2.3 |
| B7 | 0.8 | 1.5 | 2.1 | 2.4 | 3.1 | 2.4 | 2.5 | 2.5 | 2.3 | 2.2 | 3.3 | 2.6 | 2.2 |
| B8 | 1.7 | 1.7 | 2.2 | 2.4 | 2.9 | 2.5 | 2.5 | 2.4 | 2.2 | 2.4 | 2.8 | 2.6 | 2.2 |
| B9 | 0.7 | 2.5 | 3 | 3.2 | 3.8 | 3.8 | 3.3 | 3.3 | 2.9 | 2.7 | 3.1 | 3.6 | 3.8 |
Table 2: L1/L2 is 2.96
Table 3: L1/L2 ═ 3
| A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 | A10 | A11 | A12 | A13 | |
| B1 | 2.2 | 3 | 3.1 | 3.9 | 3 | 3.3 | 3.6 | 3.3 | 3.4 | 1.8 | 3 | 3.4 | 3.2 |
| B2 | 2.3 | 2 | 2.4 | 2.8 | 2.9 | 2.7 | 2.7 | 2.4 | 2.6 | 2.1 | 3.4 | 2.6 | 2.3 |
| B3 | 1.9 | 2 | 2.2 | 2.7 | 2.7 | 2.7 | 2.6 | 2.5 | 2.3 | 1.8 | 3.1 | 2.6 | 2.2 |
| B4 | 1.8 | 2 | 2.2 | 2.7 | 2.7 | 2.6 | 2.5 | 2.4 | 2.3 | 2.3 | 3.2 | 2.4 | 2.3 |
| B5 | 1.9 | 2 | 2.3 | 2.6 | 2.6 | 2.6 | 2.4 | 2.3 | 2.1 | 2.1 | 2.7 | 2.4 | 2.5 |
| B6 | 1.8 | 2 | 2.3 | 2.6 | 2.7 | 2.5 | 2.4 | 2.3 | 2.3 | 2.3 | 2.8 | 2.6 | 2.4 |
| B7 | 1.8 | 2 | 2.4 | 2.6 | 2.7 | 2.5 | 2.3 | 2.3 | 2.3 | 2.4 | 2.8 | 2.6 | 2.3 |
| B8 | 1.7 | 2.3 | 2.4 | 2.6 | 2.5 | 2.8 | 2.2 | 2.3 | 2.3 | 2.4 | 2.7 | 2.5 | 2.6 |
| B9 | 2 | 2.9 | 3.3 | 3.6 | 3.6 | 3.6 | 3.9 | 3.2 | 3.2 | 3.1 | 3 | 4 | 3.8 |
As can be seen from tables 1 to 3 above, under the condition that L1/L2 is 2.9, the obtained average wind speed is 2.53 m/s; under the condition that L1/L2 is 2.96, the obtained average wind speed is 2.74 m/s; the average wind speed obtained under the condition of L1/L2-3 was 2.59 m/s. It can be seen that the wind speed distribution uniformity of the outdoor heat exchanger 3 is improved, and the average wind speed is improved, compared with the prior art, the heat exchange effect of the outdoor heat exchanger is better, especially when L1/L2 is 2.96, the wind speed distribution is more uniform, and the average wind speed is the largest, so that the heat exchange effect of the outdoor heat exchanger 3 is the best.
In addition, the inventor compares the outdoor unit of the air conditioner using the axial flow wind wheel and rated cooling capacity of 7200W in the prior art with the outdoor unit 100 of the air conditioner having rated cooling capacity of 7200W according to an embodiment of the present application, and obtains the following related data as shown in table 4 below:
as can be seen from table 4, after the wind wheel assembly 2 is adopted, the wind speed is greatly increased, the heat exchange effect of the outdoor heat exchanger 3 is improved, meanwhile, the relevant size of the outdoor heat exchanger 3 is also reduced, and the heat exchange area of the outdoor heat exchanger 3 is reduced.
The utility model discloses still studied the basis the utility model discloses the relation between the air speed B of the ratio C of the heat transfer area of the outdoor heat exchanger of the air conditioner 3 of the above-mentioned embodiment and the outdoor heat exchanger of the air conditioner among the prior art and the disrotatory wind wheel obtains the relation graph shown in figure 7. Wherein the rated refrigerating output of the air conditioner among the prior art with the utility model discloses the same but its off-premises station of rated refrigerating output of air conditioner is equipped with axial compressor wind wheel.
As can be understood from fig. 7, as the wind speed B of the counter-rotor wheel increases, the heat exchange area of the outdoor heat exchanger 3 of the outdoor unit 100 of the present application decreases. The wind speed B of the counter-rotor wheel refers to the air supply speed of the counter-rotor wheel to the outdoor heat exchanger.
According to the utility model discloses air conditioner of second aspect embodiment includes: according to the outdoor unit 100 and the indoor unit of the first aspect of the present invention, the outdoor unit 100 is adapted to be connected to the indoor unit.
According to the utility model discloses the air conditioner is through setting up the basis the utility model discloses the off-premises station 100 of above-mentioned first aspect embodiment for the air conditioner has the whole advantages that above-mentioned off-premises station 100 has, and no longer redundant description here.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other through additional features therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. An outdoor unit of an air conditioner, comprising:
the air conditioner comprises a shell, wherein an air inlet and an air outlet are formed in the shell;
the outdoor heat exchanger is arranged in the shell;
the fan subassembly, the fan subassembly is located in the casing by with driving air the air intake orientation the air outlet flows, the fan subassembly includes first wind wheel and second wind wheel, first wind wheel with the second wind wheel is constituteed to the whirlwind wheel, and in the direction of circulation of air current, the second wind wheel is located the low reaches of first wind wheel, the maximum diameter to the whirlwind wheel is D, D satisfies: d is more than or equal to 400mm and less than or equal to 450 mm;
wherein, the rated refrigerating output of air conditioner is Q, the heat transfer area of outdoor heat exchanger is A:
when the Q satisfies: 6500W is not less than Q not more than 8000W, the A satisfies: 22m2≤A≤34m2；
When the Q satisfies: 3400W is not less than Q is not less than 5200W, the A satisfies: 11.58m2≤A≤17.89m2。
2. The outdoor unit of an air conditioner according to claim 1, wherein the outdoor heat exchanger includes a heat exchange pipe having an inner diameter d and a plurality of fins provided on the heat exchange pipe,
when Q satisfies: 6500W is less than or equal to Q is less than or equal to 8000W:
when the value is 8.When d is more than or equal to 5mm and less than or equal to 9.9mm, 25m2≤A≤30m2；
When d is more than or equal to 7.5mm and less than 8.5mm, 23m2≤A≤34m2；
When d is more than or equal to 6.5mm and less than 7.5mm, 22m2≤A≤31.5m2；
When d is more than or equal to 5.5mm and less than 6.5mm, 22m2≤A≤29m2；
When d is more than or equal to 4.5mm and less than 5.5mm, 22m2≤A≤29m2；
When Q satisfies: when Q is not less than 3400W and not more than 5200W:
when d is more than or equal to 8.5mm and less than or equal to 9.9mm, 13.16m2≤A≤15.79m2；
When d is more than or equal to 7.5mm and less than 8.5mm, 12.11m2≤A≤17.89m2；
When d is more than or equal to 6.5mm and less than 7.5mm, 11.58m2≤A≤16.58m2；
When d is more than or equal to 5.5mm and less than 6.5mm, 11.58m2≤A≤15.26m2；
When d is more than or equal to 4.5mm and less than 5.5mm, 11.58m2≤A≤15.26m2。
3. The outdoor unit of an air conditioner according to claim 2, wherein the heat exchange pipe has a length L,
when Q satisfies: 6500W is less than or equal to Q is less than or equal to 8000W:
when d is more than or equal to 8.5mm and less than or equal to 9.9mm, L is more than or equal to 31m and less than or equal to 34 m;
when d is more than or equal to 7.5mm and less than 8.5mm, L is more than or equal to 37m and less than or equal to 40.5 m;
when d is more than or equal to 6.5mm and less than 7.5mm, L is more than or equal to 40m and less than or equal to 48 m;
when d is more than or equal to 5.5mm and less than 6.5mm, L is more than or equal to 40m and less than or equal to 54 m;
when d is more than or equal to 4.5mm and less than 5.5mm, L is more than or equal to 48m and less than or equal to 61 m;
when Q satisfies: when Q is not less than 3400W and not more than 5200W:
when d is more than or equal to 8.5mm and less than or equal to 9.9mm, L is more than or equal to 16.32m and less than or equal to 17.89 m;
when d is more than or equal to 7.5mm and less than 8.5mm, L is more than or equal to 19.47m and less than or equal to 21.32 m;
when d is more than or equal to 6.5mm and less than 7.5mm, L is more than or equal to 21.05m and less than or equal to 25.26 m;
when d is more than or equal to 5.5mm and less than 6.5mm, L is more than or equal to 21.05m and less than or equal to 28.42 m;
when d is more than or equal to 4.5mm and less than 5.5mm, L is more than or equal to 25.26m and less than or equal to 32.11 m.
4. The outdoor unit of an air conditioner as claimed in claim 1, wherein the outdoor heat exchanger includes a long side portion and a short side portion, one end of the long side portion is connected to one end of the short side portion, an included angle is formed between the long side portion and the short side portion, the fan assembly is located between the long side portion and the short side portion, a length of the outdoor heat exchanger in a direction in which the long side portion is located is L1, a length of the outdoor heat exchanger in a direction in which the short side portion is located is L2, and the L1 and the L2 satisfy: L1/L2 is more than or equal to 2 and less than or equal to 4.44.
5. The outdoor unit of claim 4, wherein L1 is 600 mm-800 mm.
6. The outdoor unit of claim 4, wherein L2 is 180mm or more and 300mm or less.
7. The outdoor unit of claim 4, wherein the height of the outdoor heat exchanger is H, and H satisfies: h is more than or equal to 490mm and less than or equal to 550 mm.
8. The outdoor unit of claim 4, wherein the short side portion and the long side portion are vertically disposed.
9. The outdoor unit of claim 8, wherein a rotation center line of the counter-rotor blade is perpendicular to the long side portion, a minimum distance between the counter-rotor blade and the short side portion is M, and M and D satisfy: m is not less than 0.015D and not more than 0.025D.
10. The outdoor unit of claim 8, wherein the first wind wheel is located between the second wind wheel and the long side portion, a distance between an end surface of a first hub of the first wind wheel facing the second wind wheel and the long side portion is N, and N and D satisfy: n is more than or equal to 0.15D and less than or equal to 0.45D.
11. An outdoor unit of an air conditioner according to any one of claims 1 to 10, wherein the fan assembly comprises:
the first motor is connected with the first wind wheel so as to drive the first wind wheel to rotate;
and the second motor is connected with the second wind wheel to drive the second wind wheel to rotate.
12. An air conditioner, comprising:
the outdoor unit of any one of claims 1 to 11;
the outdoor unit is suitable for being connected with the indoor unit.
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| CN201920777546.6U CN209944578U (en) | 2019-05-27 | 2019-05-27 | Outdoor unit of air conditioner and air conditioner with outdoor unit |
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| CN201920777546.6U CN209944578U (en) | 2019-05-27 | 2019-05-27 | Outdoor unit of air conditioner and air conditioner with outdoor unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294897A (en) * | 2021-06-25 | 2021-08-24 | 美的集团股份有限公司 | Rotation speed control method of air conditioner, air conditioner and storage medium |
| CN114322112A (en) * | 2020-10-10 | 2022-04-12 | 广东美的暖通设备有限公司 | Outdoor unit of air conditioner |
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2019
- 2019-05-27 CN CN201920777546.6U patent/CN209944578U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322112A (en) * | 2020-10-10 | 2022-04-12 | 广东美的暖通设备有限公司 | Outdoor unit of air conditioner |
| CN114322112B (en) * | 2020-10-10 | 2023-12-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit |
| CN113294897A (en) * | 2021-06-25 | 2021-08-24 | 美的集团股份有限公司 | Rotation speed control method of air conditioner, air conditioner and storage medium |
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