Air conditioner

Abstract

The utility model discloses an air conditioner which comprises an air conditioner outdoor unit, the air conditioner outdoor unit comprises an outdoor unit shell, an outdoor fan and an outdoor heat exchanger, and the outdoor fan and the outdoor heat exchanger are arranged in the outdoor unit shell. A first air inlet, a second air inlet and an air outlet are formed in the outdoor unit shell, the outdoor fan comprises a motor and a wind wheel, the outdoor heat exchanger comprises a first heat exchange section, a second heat exchange section and a third heat exchange section which are sequentially connected in the circumferential direction of the outdoor unit shell and extend linearly, and an included angle is formed between the first heat exchange section and the second heat exchange section. An included angle is formed between the second heat exchange section and the third heat exchange section, the first heat exchange section extends in the first direction and is opposite to the second air inlet in the second direction, and the third heat exchange section extends in the second direction and is opposite to the first air inlet in the first direction. According to the air conditioner, the heat exchange effect between airflow and the outdoor heat exchanger can be improved, and therefore the performance of the air conditioner outdoor unit and the air conditioner can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an air conditioner. Background Art

[0002] In the related art, an outdoor heat exchanger and an outdoor fan are provided in the outdoor unit of the air conditioner. The wind wheel of the outdoor fan usually adopts an axial flow wind wheel, which drives the airflow from the air inlet side toward the outdoor heat exchanger and exchanges heat with the outdoor heat exchanger. However, due to the unreasonable structural setting of the outdoor heat exchanger, the structure of some areas of the outdoor heat exchanger is not compatible with the distribution characteristics of the airflow flow field on the air inlet side of the wind wheel, resulting in poor heat exchange effect between the airflow and the outdoor heat exchanger when flowing through the outdoor heat exchanger, thereby reducing the performance of the outdoor unit of the air conditioner. Therefore, improvement is needed. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air conditioner, by setting the outdoor heat exchanger of the air conditioner outdoor unit of the air conditioner to include a first heat exchange section, a second heat exchange section and a third heat exchange section connected in sequence along the circumference of the outdoor housing, and making an angle between the first heat exchange section and the second heat exchange section, and an angle between the second heat exchange section and the third heat exchange section, it is beneficial to improve the heat exchange effect between the airflow and the outdoor heat exchanger, thereby improving the performance of the air conditioner outdoor unit, and further improving the performance of the air conditioner.

[0004] According to an air conditioner of an embodiment of the first aspect of the utility model, the air conditioner outdoor unit comprises: an outdoor casing, wherein the first air inlet and the air outlet are respectively formed on opposite sides of the outdoor casing along a first direction, and the second air inlet is formed on one side of the outdoor casing along a second direction; an outdoor fan, which is arranged in the outdoor casing and comprises a motor and a wind wheel, wherein the motor is connected to the wind wheel to drive the wind wheel to rotate, and the rotation axis of the wind wheel extends along the first direction and is an axial flow wind wheel; an outdoor heat exchanger, which is arranged in the outdoor casing, wherein the outdoor fan is located on a side of the outdoor heat exchanger adjacent to the air outlet, and the outdoor heat exchanger comprises a first heat exchange section, a second heat exchange section and a third heat exchange section which are sequentially connected along the circumference of the outdoor casing, wherein an angle is formed between the first heat exchange section and the second heat exchange section, and an angle is formed between the second heat exchange section and the third heat exchange section, wherein the first heat exchange section extends along the first direction and is arranged opposite to the second air inlet in the second direction, and the third heat exchange section extends along the second direction and is arranged opposite to the first air inlet in the first direction.

[0005] According to the air conditioner of the embodiment of the utility model, by setting the outdoor heat exchanger of the air-conditioning outdoor unit of the air-conditioning to include a first heat exchange section, a second heat exchange section and a third heat exchange section which are connected in sequence along the circumference of the outdoor unit casing and extend in a straight line, and an angle is provided between the first heat exchange section and the second heat exchange section, and an angle is provided between the second heat exchange section and the third heat exchange section, the overall structure of the outdoor heat exchanger can be more adapted to the distribution characteristics of the airflow field on the air inlet side of the axial flow wind wheel, so that the flow direction of the airflow on the air inlet side of the axial flow wind wheel can be roughly perpendicular to the thickness direction of the outdoor heat exchanger, which is conducive to the airflow to flow smoothly through the outdoor heat exchanger and exchange heat with the outdoor heat exchanger, thereby facilitating the improvement of the heat exchange effect between the airflow and the outdoor heat exchanger, improving the working performance of the air-conditioning outdoor unit, and further improving the performance of the air conditioner.

[0006] According to some embodiments of the present invention, the first heat exchange section, the second heat exchange section and the third heat exchange section all extend in a straight line.

[0007] According to some embodiments of the present invention, the angle between the first heat exchange section and the second heat exchange section is a first angle, the angle between the second heat exchange section and the third heat exchange section is a second angle, and the first angle and the second angle are both obtuse angles.

[0008] According to some optional embodiments of the present invention, the first angle ranges from 110° to 140°, and the second angle ranges from 130° to 160°.

[0009] According to some optional embodiments of the present invention, the distance between the second heat exchange section and the outdoor casing is greater than the distance between the first heat exchange section and the outdoor casing.

[0010] According to some embodiments of the utility model, the side wall of the outdoor casing on which the air outlet is formed is an air outlet side wall, the connection position of the first heat exchange section and the second heat exchange section is a first position, the distance between the first position and the air outlet side wall in the first direction is H1, the distance between the tip of the wind wheel and the air outlet side wall in the first direction is H2, and the ratio range of H1 to H2 is 1.0 to 1.05.

[0011] According to some embodiments of the present invention, in the second direction, a portion of the third heat exchange section located on the rotation axis of the wind wheel and adjacent to the second heat exchange section constitutes a first heat exchange portion, and a portion of the third heat exchange section located on the rotation axis of the wind wheel and away from the second heat exchange portion constitutes a second heat exchange portion, an extension length of the first heat exchange portion in the second direction is B, an extension length of the second heat exchange portion in the second direction is C, and a radius of the wind wheel is F; wherein, the ratio of B to F ranges from 0.25 to 1.1.

[0012] According to some embodiments of the present invention, in the second direction, a portion of the third heat exchange section located on the rotation axis of the wind wheel and adjacent to the second heat exchange section constitutes a first heat exchange portion, and a portion of the third heat exchange section located on the rotation axis of the wind wheel and away from the second heat exchange portion constitutes a second heat exchange portion, an extension length of the first heat exchange portion in the second direction is B, an extension length of the second heat exchange portion in the second direction is C, and the radius of the wind wheel is F; wherein, the ratio of C to F is not less than 1.1.

[0013] According to some embodiments of the utility model, the air conditioner outdoor unit includes an air guide ring, which is arranged in the outdoor unit casing, the air guide ring and the wind wheel are arranged along the first direction and the air guide ring is located between the wind wheel and the air outlet, the end of the air guide ring adjacent to the wind wheel is the air inlet end, and the air inlet end and the first heat exchange section are arranged relative to each other in the second direction.

[0014] According to some optional embodiments of the present invention, the distance between the air inlet end and the first heat exchange section ranges from 2 mm to 20 mm.

[0015] According to some embodiments of the utility model, a middle partition is provided in the outdoor casing, and in the second direction, the middle partition is located on the side of the fan away from the first heat exchange section, the outdoor heat exchanger also includes a fourth heat exchange section, the fourth heat exchange section is connected to the end of the third heat exchange section away from the second heat exchange section, the fourth heat exchange section and the third heat exchange section have an angle, the end of the fourth heat exchange section away from the third heat exchange section is connected to one end of the middle partition, the side wall of the outdoor casing formed with the air outlet is the air outlet side wall, and the other end of the middle partition is connected to the air outlet side wall.

[0016] According to some optional embodiments of the utility model, in the direction from the first air inlet to the air outlet, the fourth heat exchange section extends obliquely in a direction away from the rotation axis of the wind wheel, and the angle between the fourth heat exchange section and the third heat exchange section is an obtuse angle.

[0017] According to some optional embodiments of the utility model, the middle partition includes a partition body and a partition extension portion, the partition body extends along the first direction, one end of the partition body is connected to the air outlet side wall, and the other end of the partition body is connected to the partition extension portion, the partition extension portion extends obliquely in a direction away from the rotation axis of the wind wheel, and the angle range between the partition extension portion and the fourth heat exchange section is 80° to 100°.

[0018] According to some optional embodiments of the utility model, the air-conditioning outdoor unit includes an air guide ring, which is arranged in the outdoor unit casing, the air guide ring and the wind wheel are arranged along the first direction and the air guide ring is located between the wind wheel and the air outlet, and the air guide ring is located on a side of the middle partition adjacent to the fan and is connected to the middle partition.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is an exploded schematic diagram of an air conditioner outdoor unit according to some embodiments of the utility model;

[0022] Figure 2 yes Figure 1 A top view of a partial structure of an outdoor unit of an air conditioner;

[0023] Figure 3 yes Figure 1 A three-dimensional structural diagram of a part of the structure of an outdoor unit of an air conditioner;

[0024] Figure 4 It is a simulation diagram of air flow in an outdoor unit of an air conditioner according to some embodiments of the utility model;

[0025] Figure 5 It is a simulation diagram of the air flow in the outdoor unit of the air conditioner in the related art.

[0026] Reference numerals:

[0027] 100. Air conditioner outdoor unit;

[0028] 1. Outdoor housing; 11. First air inlet; 12. Air outlet; 13. Second air inlet; 14. Air outlet side wall; 15. Top cover; 16. Left side panel; 17. Right side panel; 18. Bottom panel;

[0029] 2. Outdoor fan; 21. Motor; 22. Wind wheel; 221. Blade tip; 23. Motor bracket;

[0030] 3. outdoor heat exchanger; 31. first heat exchange section; 32. second heat exchange section; 33. third heat exchange section; 331. first heat exchange section; 332. second heat exchange section; 34. fourth heat exchange section;

[0031] 4. Air guide ring; 41. Air inlet end;

[0032] 5. Middle partition; 51. Partition body; 52. Partition extension. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] Reference below Figure 1-Figure 3 An air conditioner according to an embodiment of the present utility model is described.

[0035] refer to Figure 1-Figure 3 According to the air conditioner of the first embodiment of the utility model, the air conditioner includes an air conditioner outdoor unit 100, and the air conditioner outdoor unit 100 includes: an outdoor casing 1, an outdoor fan 2 and an outdoor heat exchanger 3, and the outdoor fan 2 and the outdoor heat exchanger 3 are arranged in the outdoor casing 1.

[0036] The outdoor housing 1 is provided with a first air inlet 11 and an air outlet 12 on opposite sides along a first direction (as shown in the direction e1 in the figure), and a second air inlet 13 is formed on one side of the outdoor housing 1 along a second direction (as shown in the direction e2 in the figure). By providing the first air inlet 11 and the second air inlet 13, more air flows are facilitated to enter the outdoor housing 1 through the first air inlet 11 and the second air inlet 13, and the air flow direction in the outdoor housing 1 is: the air flows into the outdoor housing 1 through the first air inlet 11 and the second air inlet 13, flows toward the air outlet 12, and finally flows out of the outdoor housing 1 through the air outlet 12.

[0037] The outdoor fan 2 includes a motor 21 and a wind wheel 22, the motor 21 is connected to the wind wheel 22 to drive the wind wheel 22 to rotate, the rotation axis of the wind wheel 22 extends along the first direction, and the wind wheel 22 is an axial flow wind wheel 22. The wind wheel 22 drives the airflow to enter the outdoor casing 1 through the first air inlet 11 and the second air inlet 13, and drives the airflow to flow out of the outdoor casing 1 through the air outlet 12.

[0038] The outdoor fan 2 is located on a side of the outdoor heat exchanger 3 adjacent to the air outlet 12. The outdoor heat exchanger 3 includes a first heat exchange section 31, a second heat exchange section 32 and a third heat exchange section 33 which are sequentially connected along the circumference of the outdoor casing 1. There is an angle between the first heat exchange section 31 and the second heat exchange section 32, and there is an angle between the second heat exchange section 32 and the third heat exchange section 33. The first heat exchange section 31 extends along the first direction and is arranged opposite to the second air inlet 13 in the second direction. The third heat exchange section 33 extends along the second direction and is arranged opposite to the first air inlet 11 in the first direction.

[0039] By extending the first heat exchange section 31 along the first direction and being arranged opposite to the second air inlet 13 in the second direction, the flow direction of the partial airflow entering through the second air inlet 13 when flowing through the first heat exchange section 31 is basically perpendicular to the thickness direction of the first heat exchange section 31, so that the flow resistance formed by the fins of the first heat exchange section 31 of the outdoor heat exchanger 3 to the airflow is small, which is conducive to the good heat exchange between these airflows and the first heat exchange section 31; by extending the third heat exchange section 33 along the second direction and being arranged opposite to the first air inlet 11 in the first direction, the flow direction of the partial airflow entering through the first air inlet 11 when flowing through the third heat exchange section 33 is basically perpendicular to the thickness direction of the third heat exchange section 33, so that the flow resistance formed by the fins of the third heat exchange section 33 of the outdoor heat exchanger 3 to the airflow is small, which is conducive to the good heat exchange between these airflows and the third heat exchange section 33.

[0040] The second heat exchange section 32 is located between the first heat exchange section 31 and the third heat exchange section 33 along the circumference of the outdoor casing 1, and there is an angle between the first heat exchange section 31 and the second heat exchange section 32, and there is an angle between the second heat exchange section 32 and the third heat exchange section 33, so that when a part of the airflow entering through the first air inlet 11 flows through the second heat exchange section 32, the flow direction of this part of the airflow is roughly perpendicular to the thickness direction of the second heat exchange section 32, and when a part of the airflow entering through the second air inlet 13 flows through the second heat exchange section 32, the flow direction of this part of the airflow is also roughly perpendicular to the thickness direction of the second heat exchange section 32. In this way, the fins of the second heat exchange section 32 of the outdoor heat exchanger 3 form a smaller flow resistance to the airflow, which is beneficial to improving the heat exchange effect between the airflow flowing through the second heat exchange section 32 and the second heat exchange section 32, thereby facilitating good heat exchange between the airflow flowing through the second heat exchange section 32 and the second heat exchange section 32.

[0041] In this way, the airflow entering the outdoor casing 1 through the first air inlet 11 and the second air inlet 13 can basically perform good heat exchange with the outdoor heat exchanger 3, which is beneficial to improving the heat exchange effect between the airflow and the outdoor heat exchanger 3.

[0042] According to the air conditioner of the embodiment of the utility model, the outdoor heat exchanger 3 of the air conditioner outdoor unit 100 of the air conditioner is set to include a first heat exchange section 31, a second heat exchange section 32 and a third heat exchange section 33 which are sequentially connected along the circumference of the outdoor housing 1 and extend in a straight line, and an angle is provided between the first heat exchange section 31 and the second heat exchange section 32, and an angle is provided between the second heat exchange section 32 and the third heat exchange section 33, so that the overall structure of the outdoor heat exchanger 3 can be more adapted to the distribution characteristics of the air flow field on the air inlet side of the axial flow fan wheel 22, so that the flow direction of the air flow on the air inlet side of the axial flow fan wheel 22 can be roughly perpendicular to the thickness direction of the outdoor heat exchanger 3, which is conducive to the smooth flow of the air flow through the outdoor heat exchanger 3 and heat exchange with the outdoor heat exchanger 3, thereby facilitating the improvement of the heat exchange effect between the air flow and the outdoor heat exchanger 3, and facilitating the improvement of the working performance of the air conditioner outdoor unit 100, and further facilitating the improvement of the performance of the air conditioner. For example, it is conducive to improving the free cooling and high-temperature cooling capabilities of the air conditioner, reducing the power consumption of high-temperature cooling, and improving the low-temperature heating capability.

[0043] refer to Figure 2 , the first heat exchange section 31, the second heat exchange section 32 and the third heat exchange section 33 all extend in a straight line. By making the first heat exchange section 31, the second heat exchange section 32 and the third heat exchange section 33 all extend in a straight line, each part of the first heat exchange section 31, each part of the second heat exchange section 321 and each part of the third heat exchange section 33 can adapt to the distribution characteristics of the airflow flow field on the air inlet side of the axial flow fan wheel 22, so that the flow direction of the airflow on the air inlet side of the axial flow fan wheel 22 can be roughly perpendicular to the thickness direction of each part of the first heat exchange section 31, each part of the second heat exchange section 321 and each part of the third heat exchange section 33, thereby facilitating further improving the heat exchange effect between the airflow and the outdoor heat exchanger 3, and facilitating further improving the working performance of the air conditioner.

[0044] refer to Figure 2 According to some embodiments of the utility model, the angle between the first heat exchange section 31 and the second heat exchange section 32 is a first angle α, and the angle between the second heat exchange section 32 and the third heat exchange section 33 is a second angle β, and both the first angle α and the second angle β are obtuse angles. By making the first angle α and the second angle β both obtuse angles, it is helpful to avoid the first heat exchange section 31, the second heat exchange section 32 and the third heat exchange section 33 of the outdoor heat exchanger 3 from interfering with the airflow entering through the first air inlet 11 and the second air inlet 13, thereby affecting the airflow flowing through the first heat exchange section 31, the second heat exchange section 32 and the third heat exchange section 33 respectively, and it is also helpful that the thickness direction of the second heat exchange section 32 can be perpendicular to the part of the airflow entering through the first air inlet 11 and the second air inlet 13, so that the first heat exchange section 31, the second heat exchange section 32 and the third heat exchange section 33 of the outdoor heat exchanger 3 can have a good heat exchange effect.

[0045] refer to Figure 2 According to some optional embodiments of the utility model, the first angle α is in the range of 110° to 140°, and the second angle β is in the range of 130° to 160°. If the first angle α is less than 110° or the first angle α is greater than 140°, the angle between the thickness direction of the second heat exchange section 32 and some airflows flowing through the second heat exchange section 32 will be too large or too small, so that the fins of the second heat exchange section 32 of the outdoor heat exchanger 3 form a large flow resistance to these airflows, so that the flow velocity of the airflow when flowing through the second heat exchange section 32 is small, which is not conducive to good heat exchange between these airflows and the second heat exchange section 32. If the second angle β is less than 130° or the second angle β is greater than 160°, the angle between the thickness direction of the second heat exchange section 32 and some airflows flowing through the second heat exchange section 32 will be too large or too small, so that the fins of the second heat exchange section 32 of the outdoor heat exchanger 3 form a large flow resistance to these airflows, so that the flow velocity of these airflows when flowing through the second heat exchange section 32 is small, which is not conducive to good heat exchange between these airflows and the second heat exchange section 32. By making the first angle α range from 110° to 140° and the second angle β range from 130° to 160°, the thickness direction of the second heat exchange section 32 can be basically perpendicular to the flow direction of the airflow flowing through the second heat exchange section 32, so that the flow resistance formed by the fins of the second heat exchange section 32 to the airflow is small, which is conducive to good heat exchange between the second heat exchange section 32 and the airflow.

[0046] refer to Figure 2 According to some optional embodiments of the utility model, the distance between the second heat exchange section 32 and the outdoor casing 1 is L3, the distance between the first heat exchange section 31 and the outdoor casing 1 is L1, and L3 is greater than L1. The first heat exchange section 31 is arranged opposite to the second air inlet 13 on the outdoor casing 1, and the airflow can smoothly flow through the first heat exchange section 31 through the second air inlet 13, while the relative position between the outdoor casing 1 and the second heat exchange section 32 will interfere with the airflow and affect the airflow flowing to the second heat exchange section 32. By making the distance between the second heat exchange section 32 and the casing greater than the distance between the first heat exchange section 31 and the casing, it is helpful to reduce the influence of the outdoor casing 1 on the airflow flowing toward the second heat exchange section 32, so that more airflow can flow through the second heat exchange section 32 and exchange heat with the second heat exchange section 32, which can improve the heat exchange effect of the second heat exchange section 32.

[0047] In addition, the interference of the outdoor casing 1 on the airflow passing through the second heat exchange section 32 can be further reduced by increasing the distance L3 between the second heat exchange section 32 and the outdoor casing 1, so that the distribution of the airflow passing through the second heat exchange section 32 is more uniform, thereby making the airflow and the second heat exchange effect more uniform.

[0048] refer to Figure 2According to some embodiments of the utility model, the side wall of the outdoor housing 1 formed with the air outlet 12 is the air outlet side wall 14, the connection position of the first heat exchange section 31 and the second heat exchange section 32 is the first position, the distance between the first position and the air outlet side wall 14 in the first direction is H1, the distance between the blade tip 221 of the wind wheel 22 and the air outlet side wall 14 in the first direction is H2, and the ratio range of H1 to H2 is 1.0 to 1.05. The wind wheel 22 is an axial flow wind wheel 22. In the process of the wind wheel 22 rotating and driving the air flow, in the area between the blade tip 221 of the wind wheel 22 and the air outlet side wall 14, the flow direction of the air flow between the wind wheel 22 and the first air inlet 11 is substantially perpendicular to the rotation axis of the wind wheel 22, and the flow direction of the air flow between the wind wheel 22 and the first air inlet 11 is substantially perpendicular to the first direction, so that these air flows can be substantially perpendicular to the thickness direction of the second heat exchange section 32 and can perform good heat exchange with the second heat exchange section 32.

[0049] If the ratio range of H1 to H2 is less than 1.0, part of the airflow in the area between the blade tip 221 of the wind wheel 22 and the air outlet side wall 14 will not flow through the outdoor heat exchanger 3 in a state basically perpendicular to the second heat exchange section 32, and this part of the airflow will not fully and well exchange heat with the outdoor heat exchanger 3; if the ratio range of H1 to H2 is greater than 1.05, a large area of ​​the airflow flowing through the second heat exchange section 32 will not be perpendicular to the thickness direction of the second heat exchange section 32, so that the airflow between the wind wheel 22 and the first air inlet 11, whose flow direction is basically perpendicular to the rotation axis of the wind wheel 22, cannot cover the second heat exchange section 32, so that the heat exchange effect between the airflow and the outdoor heat exchanger 3 is poor. By making the ratio of H1 to H2 in the range of 1.0 to 1.05, within this ratio range, the airflow flowing through the second heat exchange section 32 can be basically perpendicular to the thickness direction of the second heat exchange section 32 and can exchange heat well with the second heat exchange section 32, which is beneficial for the airflow between the blade tip 221 of the wind wheel 22 and the air outlet side wall 14 to fully and well exchange heat with the outdoor heat exchanger 3.

[0050] refer to Figure 2According to some embodiments of the present invention, in the second direction, a portion of the third heat exchange segment 33 located at the rotation axis of the wind wheel 22 and adjacent to the second heat exchange segment 32 constitutes a first heat exchange portion 331, and a portion of the third heat exchange segment 33 located at the rotation axis of the wind wheel 22 and away from the second heat exchange segment 32 constitutes a second heat exchange portion 332. The extension length of the first heat exchange portion 331 in the second direction is B, the extension length of the second heat exchange portion 332 in the second direction is C, and the radius of the wind wheel 22 is F; wherein, the ratio of B to F ranges from 0.25 to 1.1. During the process of the axial flow wind wheel 22 rotating and driving the airflow to flow, within the diameter range of 0.25 to 1.1 times of the wind wheel 22, the airflow direction between the wind wheel 22 and the second air inlet 13 is basically parallel to the rotation axis of the wind wheel 22, and the airflow direction between the wind wheel 22 and the second air inlet 13 is basically parallel to the first direction. When these airflows flow through the third heat exchange section 33, they are basically perpendicular to the thickness direction of the third heat exchange section 33 and can perform good heat exchange with the third heat exchange section 33.

[0051] If the ratio range of B to F is less than 0.25, part of the airflow between the wind wheel 22 and the second air inlet 13 within the diameter range of 0.25 to 1.1 times of the wind wheel 22 will not flow through the outdoor heat exchanger 3 in a perpendicular state, which will cause this part of the airflow to fail to fully and well exchange heat with the outdoor heat exchanger 3; if the ratio range of B to F is greater than 1.1, the airflow between the wind wheel 22 and the second air inlet 13, whose flow direction is basically parallel to the rotation axis of the wind wheel 22, will not be able to cover the first heat exchange part 331 of the third heat exchange section 33, so that the airflow flowing through a partial area of ​​the first heat exchange part 331 is not basically disposed in the thickness direction of the first heat exchange part 331, and the heat exchange effect between this part of the area and the first heat exchange part 331 is poor, thereby adversely affecting the overall heat exchange effect of the outdoor heat exchanger 3. By making the ratio range of B to F be 0.25 to 1.1, within this ratio range, the airflow flowing through the first heat exchange part 331 of the third heat exchange section 33 can be basically perpendicular to the thickness direction of the first heat exchange part 331 and can exchange heat well with the heat exchange part below, which is beneficial for the airflow within the diameter range of 0.25 to 1.1 times of the wind wheel 22 to fully and well exchange heat with the outdoor heat exchanger 3.

[0052] refer to Figure 2 According to some embodiments of the present invention, in the second direction, a portion of the third heat exchange segment 33 located at the rotation axis of the wind wheel 22 and adjacent to the second heat exchange segment 32 constitutes a first heat exchange portion 331, a portion of the third heat exchange segment 33 located at the rotation axis of the wind wheel 22 and away from the second heat exchange segment 32 constitutes a second heat exchange portion 332, an extension length of the first heat exchange portion 331 in the second direction is B, an extension length of the second heat exchange portion 332 in the second direction is C, and a radius of the wind wheel 22 is F; wherein, a ratio of C to F is not less than 1.1.

[0053] By making the ratio of C to F not less than 1.1, within this ratio range, the airflow flowing through the second heat exchange part 332 of the third heat exchange section 33 can be basically perpendicular to the thickness direction of the second heat exchange part 332 and can exchange heat well with the heat exchange part below, which is beneficial for the airflow to fully and well exchange heat with the outdoor heat exchanger 3.

[0054] refer to Figure 1-Figure 3 According to some embodiments of the utility model, the air conditioner outdoor unit 100 includes an air guide ring 4, which is arranged in the outdoor housing 1, and the air guide ring 4 and the wind wheel 22 are arranged along the first direction and the air guide ring 4 is located between the wind wheel 22 and the air outlet 12. The end of the air guide ring 4 adjacent to the wind wheel 22 is the air inlet end 41, and the air inlet end 41 and the first heat exchange section 31 are arranged opposite to each other in the second direction. By arranging the air guide ring 4 in the outdoor housing 1 and arranging the air guide ring 4 and the wind wheel 22 along the first direction and the air guide ring 4 is located between the wind wheel 22 and the air outlet 12, the air guide ring 4 is used to guide the airflow of the air inlet end 41 to flow more concentratedly, and can further guide the airflow in the outdoor housing 1 to flow out through the air outlet 12; it is also beneficial to reduce the airflow noise generated by the air conditioner outdoor unit 100. By arranging the air inlet end 41 and the first heat exchange section 31 opposite to each other in the second direction, the situation in which the airflow entering the outdoor casing 1 flows out toward the air outlet 12 through the air guide ring 4 without exchanging heat with the outdoor heat exchanger 3 is reduced or avoided.

[0055] Optionally, the air guide ring 4 may be integrally stamped and formed with the air outlet side wall 14 of the outdoor casing 1 ; or the air guide ring 4 may be detachably connected to the air outlet side wall 14 of the outdoor casing 1 .

[0056] refer to Figure 2 According to some optional embodiments of the utility model, the distance between the air inlet end 41 and the first heat exchange section 31 is N, and the range of the distance N is 2mm to 20mm. By providing a distance N between the air inlet end 41 and the first heat exchange section 31 and making the range of the distance N 2mm to 20mm, during the transportation process of the outdoor air conditioner outdoor unit 100 or when a collision or drop occurs, it is helpful to avoid mutual collision between the first heat exchange section 31 and the air guide ring 4 and damage to the first heat exchange section 31 or the air guide ring 4, etc., which meets the safety specification requirements.

[0057] refer to Figure 1-Figure 3According to some embodiments of the utility model, a middle partition plate 5 is provided in the outdoor casing 1. In the second direction, the middle partition plate 5 is located on the side of the fan away from the first heat exchange section 31. The outdoor heat exchanger 3 also includes a fourth heat exchange section 34. The fourth heat exchange section 34 is connected to one end of the third heat exchange section 33 away from the second heat exchange section 32. There is an angle between the fourth heat exchange section 34 and the third heat exchange section 33. The end of the fourth heat exchange section 34 away from the third heat exchange section 33 is connected to one end of the middle partition plate 5. The side wall of the outdoor casing 1 formed with the air outlet 12 is the air outlet side wall 14, and the other end of the middle partition plate 5 is connected to the air outlet side wall 14. By setting the fourth heat exchange section 34, and connecting the fourth heat exchange section 34 to the end of the third heat exchange section 33 away from the second heat exchange section 32 and to one end of the middle partition 5, the setting of the fourth heat exchange section 34 is conducive to increasing the heat exchange area of ​​the outdoor heat exchanger 3, and the middle partition 5 will guide the airflow toward the fourth heat exchange section 34, so that more airflow can flow through the fourth heat exchange section 34 and exchange heat with it, thereby helping to improve the heat exchange effect of the outdoor heat exchanger 3, and helping to improve the performance of the air conditioner outdoor unit 100 and the performance of the air conditioner. By making the fourth heat exchange section 34 and the third heat exchange section 33 have an angle, the layout between the third heat exchange section 33 and the fourth heat exchange section 34 is reasonable, which is conducive to the third heat exchange section 33 and the fourth heat exchange section 34 to fully utilize the space in the outdoor housing 1.

[0058] refer to Figure 1-Figure 3 According to some optional embodiments of the utility model, in the direction from the first air inlet 11 to the air outlet 12, the fourth heat exchange section 34 extends obliquely in the direction away from the rotation axis of the wind wheel 22, and the angle between the fourth heat exchange section 34 and the third heat exchange section 33 is an obtuse angle. By making the fourth heat exchange section 34 extend obliquely in the direction from the first air inlet 11 to the air outlet 12 in the direction away from the rotation axis of the wind wheel 22, and making the angle between the fourth heat exchange section 34 and the third heat exchange section 33 an obtuse angle, it is possible to avoid mutual interference between the fourth heat exchange section 34 and the third heat exchange section 33, and the fourth heat exchange section 34 makes full use of the space in the outdoor housing 1, which is conducive to the miniaturization design of the air conditioner outdoor unit 100.

[0059] refer to Figure 1-Figure 3According to some optional embodiments of the utility model, the middle partition 5 includes a partition body 51 and a partition extension 52, the partition body 51 extends along the first direction, one end of the partition body 51 is connected to the air outlet side wall 14, and the other end of the partition body 51 is connected to the partition extension 52, the partition extension 52 extends obliquely in the direction away from the rotation axis of the wind wheel 22, and the included angle between the partition extension 52 and the fourth heat exchange section 34 is γ, and the range of the included angle γ is 80° to 100°. The partition extension 52 will guide the airflow to flow through the fourth heat exchange section 34, and by making the included angle γ between the partition extension 52 and the fourth heat exchange section 34 range from 80° to 100°, the airflow flowing through the fourth heat exchange section 34 is substantially perpendicular to the thickness direction of the fourth heat exchange section 34, which is conducive to reducing the flow resistance of the fins of the fourth heat exchange section 34 to the airflow, thereby increasing the flow velocity of the airflow flowing through the fourth heat exchange section 34 and improving the heat exchange effect between the fourth heat exchange section 34 and the airflow.

[0060] refer to Figure 1-Figure 3 According to some optional embodiments of the utility model, the air conditioner outdoor unit 100 includes an air guide ring 4, which is arranged in the outdoor housing 1, and the air guide ring 4 and the wind wheel 22 are arranged along the first direction and the air guide ring 4 is located between the wind wheel 22 and the air outlet 12, and the air guide ring 4 is located on the side of the middle partition 5 adjacent to the fan and connected to the middle partition 5. By arranging the air guide ring 4 in the outdoor housing 1 and arranging the air guide ring 4 and the wind wheel 22 along the first direction and the air guide ring 4 is located between the wind wheel 22 and the air outlet 12, the air guide ring 4 is used to guide the airflow of the air inlet end 41 to flow more concentratedly, and can further guide the airflow in the outdoor housing 1 to flow out through the air outlet 12; it is also beneficial to reduce the airflow noise generated by the air conditioner outdoor unit 100.

[0061] refer to Figure 1-Figure 3 According to some optional embodiments of the utility model, the air conditioner outdoor unit 100 also includes a motor 21 bracket, the motor 21 bracket is used to support and fix the motor 21 of the outdoor fan 2, the motor 21 bracket and the third heat exchange section 33 of the outdoor heat exchanger 3 are spaced apart in the first direction, and the distance between the motor 21 bracket and the third heat exchange section 33 in the first direction is L2. By increasing the distance L2 between the motor 21 bracket and the third heat exchange section 33 in the first direction, the interference of the motor 21 bracket on the airflow passing through the third heat exchange section 33 is reduced, so that the distribution of the airflow passing through the third heat exchange section 33 is more uniform, thereby making the heat exchange effect between the third heat exchange section 33 as a whole and the airflow more uniform.

[0062] Next, we will refer to Figure 1-Figure 3 The air conditioners in some embodiments of the utility model are described.

[0063] like Figure 1-Figure 3As shown, in this embodiment, the air conditioner is a split air conditioner, and optionally, the air conditioner can be a split wall-mounted air conditioner or a split floor-standing air conditioner. The air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit 100.

[0064] The air conditioner outdoor unit 100 comprises an outdoor casing 1 , an outdoor fan 2 , an outdoor heat exchanger 3 , a motor 21 bracket and an air guide ring 4 . The outdoor fan 2 , the outdoor heat exchanger 3 , the motor 21 bracket and the air guide ring 4 are arranged in the outdoor casing 1 .

[0065] The outdoor casing 1 includes a top cover 15, a left side panel 16, a right side panel 17, an air outlet side wall 14 and a bottom plate 18. The top cover 15 and the bottom plate 18 are arranged relative to each other in a third direction (as shown in the direction e3 in the reference figure), the left side panel 16 and the right side panel 17 are arranged relative to each other along the second direction, and the air outlet side wall 14 is arranged on one side in the first direction. The first direction, the second direction and the third direction intersect each other.

[0066] The outdoor housing 1 has first air inlets 11 and air outlets 12 formed on opposite sides along the first direction, respectively. The air outlet 12 is provided on the air outlet side wall 14. The outdoor housing 1 has a second air inlet 13 formed on one side along the second direction, and the second air inlet 13 is provided on the left side plate 16. The outdoor housing 1 also has a middle partition 5, which extends along the first direction and is provided between the left side plate 16 and the right side plate 17 in the second direction. The middle partition 5 divides the outdoor housing 1 into two cavities, namely, a fan cavity and a compressor cavity.

[0067] The outdoor fan 2 is arranged in the fan cavity of the outdoor casing 1. The outdoor fan 2 includes a motor 21 and a wind wheel 22. The motor 21 is connected to the wind wheel 22 to drive the wind wheel 22 to rotate. The rotation axis of the wind wheel 22 extends along a first direction, and the wind wheel 22 is an axial flow wind wheel 22. One end of the motor 21 bracket along the first direction is connected to the motor 21, and the two ends of the motor 21 bracket along the third direction are respectively connected to the top cover 15 and the bottom plate 18. The top cover 15 and the bottom plate 18 support and fix the electrode bracket, so that the motor 21 can be stably installed in the outdoor casing 1.

[0068] The outdoor fan 2 is located on a side of the outdoor heat exchanger 3 adjacent to the air outlet 12. The outdoor heat exchanger 3 includes a first heat exchange section 31, a second heat exchange section 32 and a third heat exchange section 33 which are connected in sequence along the circumference of the outdoor casing 1 and extend in a straight line. There is an angle between the first heat exchange section 31 and the second heat exchange section 32, and there is an angle between the second heat exchange section 32 and the third heat exchange section 33. The first heat exchange section 31 extends along the first direction and is arranged opposite to the second air inlet 13 in the second direction. The third heat exchange section 33 extends along the second direction and is arranged opposite to the first air inlet 11 in the first direction.

[0069] The angle between the first heat exchange section 31 and the third heat exchange section 33 is a first angle α, the angle between the second heat exchange section 32 and the third heat exchange section 33 is a second angle β, the first angle α ranges from 110° to 140°, and the second angle β ranges from 130° to 160°.

[0070] The distance between the second heat exchange section 32 and the outdoor housing 1 is L3, the distance between the first heat exchange section 31 and the outdoor housing 1 is L1, and L3 is greater than L1. The connection position of the first heat exchange section 31 and the second heat exchange section 32 is the first position, the distance between the first position and the air outlet side wall 14 in the first direction is H1, the distance between the blade tip 221 of the wind wheel 22 and the air outlet side wall 14 in the first direction is H2, and the ratio of H1 to H2 is in the range of 1.0 to 1.05. In the second direction, the portion of the third heat exchange section 33 located at the rotation axis of the wind wheel 22 adjacent to the second heat exchange section 32 constitutes the first heat exchange portion 331, and the portion of the third heat exchange section 33 located at the rotation axis of the wind wheel 22 away from the second heat exchange section 32 constitutes the second heat exchange portion 332. The extension length of the first heat exchange portion 331 in the second direction is B, the extension length of the second heat exchange portion 332 in the second direction is C, and the radius of the wind wheel 22 is F; wherein the ratio of B to F ranges from 0.25 to 1.1, and the ratio of C to F is not less than 1.1. The spacing between the air inlet end 41 and the first heat exchange section 31 is N, and the spacing N ranges from 2 mm to 20 mm.

[0071] In the second direction, the middle partition 5 is located on the side of the fan away from the first heat exchange section 31, and the outdoor heat exchanger 3 also includes a fourth heat exchange section 34, which is connected to one end of the third heat exchange section 33 away from the second heat exchange section 32, and there is an angle between the fourth heat exchange section 34 and the third heat exchange section 33, and the end of the fourth heat exchange section 34 away from the third heat exchange section 33 is connected to one end of the middle partition 5, and the other end of the middle partition 5 is connected to the air outlet side wall 14. The middle partition 5 includes a partition body 51 and a partition extension 52, the partition body 51 extends along the first direction, one end of the partition body 51 is connected to the air outlet side wall 14, and the other end of the partition body 51 is connected to the partition extension 52.

[0072] In the direction from the first air inlet 11 to the air outlet 12, the fourth heat exchange section 34 extends obliquely in the direction away from the rotation axis of the wind wheel 22, and the partition extension portion 52 extends obliquely in the direction away from the rotation axis of the wind wheel 22. The included angle between the partition extension portion 52 and the fourth heat exchange section 34 is γ, and the range of the included angle γ is 80° to 100°.

[0073] refer to Figure 4-Figure 5In the related art, the outdoor heat exchanger 3 of the air conditioner outdoor unit 100 is formed in an L shape, and there are some areas in the overall structure of the outdoor heat exchanger 3 that are not compatible with the distribution characteristics of the air flow field on the air inlet side of the axial flow impeller 22. Specifically, the air flow passing through some areas of the outdoor heat exchanger 3 is not distributed perpendicularly to the thickness direction of the outdoor heat exchanger 3, so that the fins in these areas of the outdoor heat exchanger 3 cause greater flow resistance to the air flow. In addition, there are some areas of the left side plate 16 at the intersection of the first direction and the second direction that have a greater interference effect on the outdoor heat exchanger 3, so that there are areas on the outdoor heat exchanger 3 where the local heat exchange effect is uneven.

[0074] In this embodiment, by setting the second heat exchange section 32 and the fourth heat exchange section 34, and making the angle between the first heat exchange section 31 and the third heat exchange section 33 a first angle α in the range of 110° to 140°, the angle between the second heat exchange section 32 and the third heat exchange section 33 a second angle β in the range of 130° to 160°, and making the angle γ between the partition extension portion 52 and the fourth heat exchange section 34 in the range of 80° to 100°, the overall structure of the outdoor heat exchanger 3 can be more suitable for the axial flow wind wheel. The distribution characteristics of the air flow field on the air inlet side of 22 make the flow direction of the air flow on the air inlet side of the axial flow fan wheel 22 roughly perpendicular to the thickness direction of the outdoor heat exchanger 3. Specifically, the air flow entering the outdoor casing 1 through the first air inlet 11 and the second air inlet 13 can be basically perpendicular to the thickness direction of the first heat exchange section 31, the second heat exchange section 32, the third heat exchange section 33 and the fourth heat exchange section 34. In this way, the flow resistance formed by the fins of the outdoor heat exchanger 3 to the air flow is small, which is conducive to good heat exchange between these air flows and it.

[0075] In addition, in this embodiment, by increasing the distance L3 between the outdoor casing 1 and the second heat exchange section 32, the interference effect of a partial area of ​​the left side plate 16 at the intersection of the first direction and the second direction on the outdoor heat exchanger 3 can be reduced, so that the heat exchange effect on the outdoor heat exchanger 3 is more uniform.

[0076] Performance tests were conducted on the air-conditioning outdoor unit of the air-conditioner in the related art and the air-conditioning outdoor unit 100 of the air-conditioner in the present invention for comparison. The performance test results are shown in Table 1.

[0077] Table 1 Performance test results

[0078]

[0079] By comparing and analyzing the test results, the performance of the air-conditioning outdoor unit 100 of the utility model in the four modes of free cooling, 43 degrees cooling, free heating, and low-temperature heating is better than that of the air-conditioning outdoor unit in the related art. Among them, the heating capacity is increased by 93W in the low-temperature heating mode, and the power consumption is reduced by 23W in the 43 degrees cooling mode. The performance improvement effect of the air-conditioning outdoor unit 100 of the utility model is obvious.

[0080] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0081] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0082] In the description of the present invention, "plurality" means two or more.

[0083] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0084] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0085] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: An air conditioner outdoor unit is included, and the air conditioner outdoor unit includes: An outdoor casing, wherein a first air inlet and an air outlet are respectively formed on two opposite sides of the outdoor casing along a first direction, and a second air inlet is formed on one side of the outdoor casing along a second direction; an outdoor fan, arranged in the outdoor housing and comprising a motor and a wind wheel, wherein the motor is connected to the wind wheel to drive the wind wheel to rotate, and the rotation axis of the wind wheel extends along the first direction and is an axial flow wind wheel; An outdoor heat exchanger is arranged in the outdoor casing, and the outdoor fan is located on a side of the outdoor heat exchanger adjacent to the air outlet. The outdoor heat exchanger includes a first heat exchange section, a second heat exchange section and a third heat exchange section which are sequentially connected along the circumference of the outdoor casing. An angle is formed between the first heat exchange section and the second heat exchange section, and an angle is formed between the second heat exchange section and the third heat exchange section. The first heat exchange section extends along the first direction and is arranged opposite to the second air inlet in the second direction, and the third heat exchange section extends along the second direction and is arranged opposite to the first air inlet in the first direction.

2. The air conditioner according to claim 1, characterized in that: The first heat exchange section, the second heat exchange section and the third heat exchange section all extend in a straight line.

3. The air conditioner according to claim 2, characterized in that: The angle between the first heat exchange section and the second heat exchange section is a first angle, the angle between the second heat exchange section and the third heat exchange section is a second angle, and both the first angle and the second angle are obtuse angles.

4. The air conditioner according to claim 3, characterized in that: The first angle ranges from 110° to 140°, and the second angle ranges from 130° to 160°.

5. The air conditioner according to claim 2, characterized in that: A distance between the second heat exchange section and the outdoor casing is greater than a distance between the first heat exchange section and the outdoor casing.

6. The air conditioner according to claim 2, characterized in that: The wall of the outdoor casing on which the air outlet is formed is an air outlet side wall, the connection position of the first heat exchange section and the second heat exchange section is a first position, the distance between the first position and the air outlet side wall in the first direction is H1, the distance between the blade tip of the wind wheel and the air outlet side wall in the first direction is H2, and the ratio range of H1 to H2 is 1.0 to 1.

05.

7. The air conditioner according to claim 2, characterized in that: In the second direction, a portion of the third heat exchange section located at the rotation axis of the wind wheel and adjacent to the second heat exchange section constitutes a first heat exchange portion, a portion of the third heat exchange section located at the rotation axis of the wind wheel and away from the second heat exchange section constitutes a second heat exchange portion, an extension length of the first heat exchange portion in the second direction is B, an extension length of the second heat exchange portion in the second direction is C, and a radius of the wind wheel is F; Among them, the ratio of B to F ranges from 0.25 to 1.1 and / or the ratio of C to F is not less than 1.

1.

8. The air conditioner according to claim 2, characterized in that: It includes an air guide ring, which is arranged in the outdoor housing. The air guide ring and the wind wheel are arranged along the first direction and the air guide ring is located between the wind wheel and the air outlet. The end of the air guide ring adjacent to the wind wheel is the air inlet end, and the air inlet end and the first heat exchange section are arranged relative to each other in the second direction.

9. The air conditioner according to claim 8, characterized in that: The distance between the air inlet end and the first heat exchange section ranges from 2 mm to 20 mm.

10. The air conditioner according to claim 2, characterized in that: A middle partition is provided in the outdoor casing. In the second direction, the middle partition is located on the side of the fan away from the first heat exchange section. The outdoor heat exchanger also includes a fourth heat exchange section, which is connected to an end of the third heat exchange section away from the second heat exchange section. An angle is formed between the fourth heat exchange section and the third heat exchange section, and an end of the fourth heat exchange section away from the third heat exchange section is connected to one end of the middle partition. The side wall of the outdoor casing formed with the air outlet is an air outlet side wall, and the other end of the middle partition is connected to the air outlet side wall.

11. The air conditioner according to claim 10, characterized in that: In the direction from the first air inlet to the air outlet, the fourth heat exchange section extends obliquely in a direction away from the rotation axis of the wind wheel, and the angle between the fourth heat exchange section and the third heat exchange section is an obtuse angle.

12. The air conditioner according to claim 11, characterized in that: The middle partition includes a partition body and a partition extension portion, the partition body extends along the first direction, one end of the partition body is connected to the air outlet side wall, and the other end of the partition body is connected to the partition extension portion, the partition extension portion extends obliquely in a direction away from the rotation axis of the wind wheel, and the angle between the partition extension portion and the fourth heat exchange section ranges from 80° to 100°.

13. The air conditioner according to claim 10, characterized in that: It includes an air guide ring, which is arranged in the outdoor housing. The air guide ring and the wind wheel are arranged along the first direction and the air guide ring is located between the wind wheel and the air outlet. The air guide ring is located on a side of the middle partition adjacent to the fan and is connected to the middle partition.

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