Air conditioner outdoor unit

Abstract

The invention provides an air conditioner outdoor unit which comprises an outdoor unit shell, an air inlet, an air outlet, an air inlet, an air outlet, an air inlet, a heat dissipation device and a heat dissipation device, a mounting cavity is defined by the outdoor unit shell, and the outdoor unit shell comprises an air outlet panel which is provided with an air outlet part and a heat dissipation inlet at intervals; the electric appliance box and the heat dissipation structure are connected with each other and are both installed in the installation cavity, the heat dissipation structure is provided with a heat dissipation channel, and the heat dissipation channel and at least part of the heat dissipation inlet are opposite and communicated; and the fan blades are rotatably arranged in the outdoor unit shell, so that under the action of the fan blades, air flow entering from the heat dissipation inlet passes through the heat dissipation channel and then is exhausted from the air outlet part. By means of the technical scheme, the technical problem that in the prior art, the heat dissipation effect of the electric appliance box of the air conditioner outdoor unit is poor can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning outdoor units, and in particular to an air-conditioning outdoor unit. Background Art

[0002] In conventional air conditioner outdoor unit designs, the outer cover is a key component, not only protecting internal components from external factors but also fulfilling the crucial function of rectifying and directing airflow. The outer cover is typically densely packed with small grilles to ensure smooth airflow without being threatened by rotating blades or live electrical components.

[0003] However, the air conditioner outdoor unit in the prior art has a significant heat dissipation performance bottleneck, especially in terms of the cooling efficiency of the radiator, which often results in poor cooling effect on the electrical box, thereby affecting the normal use and service life of the electrical box. Summary of the Invention

[0004] The main purpose of the present invention is to provide an air conditioner outdoor unit to solve the technical problem of poor heat dissipation effect of the electrical appliance box of the air conditioner outdoor unit in the prior art.

[0005] In order to achieve the above object, the present invention provides an air conditioner outdoor unit, comprising:

[0006] An outdoor unit housing, the outdoor unit housing enclosing a mounting cavity, the outdoor unit housing including an air outlet panel, the air outlet panel being provided with an air outlet portion and a heat dissipation inlet at intervals;

[0007] The interconnected electrical box and the heat dissipation structure are both installed in the installation cavity, and the heat dissipation structure has a heat dissipation channel, and the heat dissipation channel is opposite to and communicates with at least a portion of the heat dissipation inlet;

[0008] The fan blades are rotatably arranged in the outdoor unit housing, so that under the action of the fan blades, the wind flow entering through the heat dissipation inlet passes through the heat dissipation channel and is discharged from the air outlet.

[0009] Furthermore, the heat dissipation structure has a heat dissipation air inlet side and a heat dissipation air outlet side relatively located on both sides of the heat dissipation structure, the heat dissipation air inlet side and the heat dissipation air outlet side are both connected to the heat dissipation channel and formed at the outer edge of the heat dissipation structure, and the heat dissipation air inlet side is arranged relative to at least part of the heat dissipation inlet.

[0010] Furthermore, the heat dissipation structure also has a connecting side located between the heat dissipation air inlet side and the heat dissipation air outlet side, the connecting side is connected to the heat dissipation channel and is formed at the outer edge of the heat dissipation structure, and the connecting side is located on the side of the heat dissipation structure close to the air outlet.

[0011] Furthermore, the heat dissipation structure includes a heat transfer plate connected to the electrical box and a plurality of heat dissipation fins spaced apart on the heat transfer plate, a heat dissipation channel is formed between two adjacent heat dissipation fins, and the outer edges of the plurality of heat dissipation fins form the heat dissipation air inlet side, the heat dissipation air outlet side and the communication side;

[0012] Wherein, the communication side is connected to the fan blade; or,

[0013] The heat dissipation structure further includes an air guide cover, which covers at least a portion of the communication side to isolate at least a portion of the communication side from the fan blades.

[0014] Furthermore, the heat dissipation structure has a first heat dissipation portion and a second heat dissipation portion, the first heat dissipation portion includes a plurality of first fins arranged at intervals, the second heat dissipation portion includes a plurality of second fins arranged at intervals, and the first heat dissipation portion is arranged on a side of the second heat dissipation portion away from the fan blades;

[0015] Wherein, along the extension direction from the first heat dissipation portion to the second heat dissipation portion, the heat dissipation width of the second fin in the radial direction of the fan blade gradually decreases; and / or,

[0016] The minimum value of the heat dissipation width of the first fin in the radial direction of the fan blade is greater than or equal to the minimum value of the heat dissipation width of the second fin in the radial direction of the fan blade.

[0017] Furthermore, along the axial direction of the fan blade, the distance between the side of the heat dissipation structure away from the inner wall of the air outlet panel and the inner wall of the air outlet panel is H4, and the distance between the side of the fan blade away from the air outlet panel and the inner wall of the air outlet panel is H5; H4<H5; and / or,

[0018] The shape of the heat dissipation inlet is adapted to the shape of the heat dissipation structure, or the heat dissipation inlet includes a plurality of communication openings spaced apart on the air outlet panel.

[0019] Furthermore, the air conditioner outdoor unit further comprises a partition plate, which is arranged on the outer wall of the air outlet panel and protrudes from the outer wall of the air outlet panel, and at least a portion of the partition plate is located on a side of the heat dissipation inlet close to the air outlet portion; and / or,

[0020] The axial direction of the heat dissipation inlet is tilted relative to the axial direction of the fan blade and deviates from the axial direction of the fan blade.

[0021] Furthermore, the air conditioner outdoor unit further includes:

[0022] An air guiding structure is movably arranged at the heat dissipation inlet, and the air guiding structure has a closed state that blocks the heat dissipation inlet and an air guiding state that at least partially avoids the heat dissipation inlet.

[0023] Furthermore, the air conditioner outdoor unit further includes:

[0024] a first temperature detecting element, disposed at the heat dissipation structure to detect the temperature of the heat dissipation structure;

[0025] a driving member, the driving member being drivingly connected to the air guide structure;

[0026] A control member, wherein the first temperature detection member and the driving member are both connected to the control member, and the control member controls the air guide structure to be in the closed state or the air guide state according to the temperature of the heat dissipation structure detected by the first temperature detection member.

[0027] Furthermore, the air conditioner outdoor unit further includes:

[0028] a second temperature detecting member, disposed in the mounting cavity and located between the fan blade and the air outlet, the second temperature detecting member being connected to the control member;

[0029] a third temperature detecting member disposed in the mounting cavity, the outdoor unit housing having an air inlet portion communicating with the mounting cavity, the third temperature detecting member disposed between the fan blade and the air inlet portion, and the third temperature detecting member connected to the control member;

[0030] Wherein, the control component is configured to: compare the temperature difference △T between the second temperature detection component and the third temperature detection component with a preset temperature difference △T0; when △T≥△T0, control the air-guiding structure to be in the closed state; when △T<△T0, control the air-guiding structure to be in the closed state or the air-guiding state according to the temperature t detected by the first temperature detection component.

[0031] Furthermore, the air guide structure is rotatably arranged at the heat dissipation inlet; the control component is also configured to: compare the temperature t detected by the first temperature detection component with a preset temperature t0; when t≥t0, control the air guide structure to rotate to a position avoiding the heat dissipation inlet, or control the air guide structure to a position parallel to the axial direction of the heat dissipation inlet; when t<t0, control the air guide structure to be in the closed state, or control the air guide structure to be in a position inclined at a preset angle to the axial direction of the heat dissipation inlet.

[0032] Furthermore, the air outlet portion has a main air outlet grille and an auxiliary air outlet grille that are connected to each other, the auxiliary air outlet grille is arranged around the periphery of the main air outlet grille, and the side of the auxiliary air outlet grille away from the main air outlet grille is connected to the air outlet panel, and the angle between the extension direction of the auxiliary air outlet grille and the axial direction of the fan blade is α, 0°<α<90°.

[0033] Furthermore, the air outlet panel includes a main body and a recessed plate that are connected to each other, and the recessed plate is protruding toward the installation cavity relative to the main body. The auxiliary air outlet grille is connected to the recessed plate and is spaced apart from at least part of the recessed plate so that the air flow enters the auxiliary air outlet grille through the gap between the auxiliary air outlet grille and the recessed plate.

[0034] Furthermore, along the extension direction from the installation cavity to the outside of the outdoor unit housing, the distance between the recessed plate and the auxiliary air outlet grille gradually increases; and / or,

[0035] The main air outlet grille is arranged to protrude from the outer wall of the air outlet panel; and / or,

[0036] The air outlet panel also includes a guide ring, which is connected to the recessed plate and is located on the side of the recessed plate close to the mounting cavity. The guide ring is arranged around the periphery of the recessed plate, and the guide cross-sectional area enclosed by the guide ring is less than or equal to the cross-sectional area enclosed by the auxiliary air outlet grille.

[0037] By applying the technical solution of the present invention, the design of the air-conditioning outdoor unit of the present application effectively improves the air-cooling efficiency of the radiator by increasing the heat dissipation inlet and optimizing the heat dissipation structure. The setting of the heat dissipation inlet and the heat dissipation channel ensures that the radiator can directly use the external low-temperature air for heat dissipation, avoiding the influence of the high-temperature air after passing through the heat exchanger on the heat dissipation effect. At the same time, by controlling the opening state of the heat dissipation inlet, it can be dynamically adjusted according to the actual heat dissipation requirements and the external ambient temperature to achieve more efficient heat dissipation management. In addition, the optimized air outlet structure, through the coordination of the main air outlet grille and the auxiliary air outlet grille, as well as the setting of the recessed plate and the guide ring, further reduces the wind resistance and increases the air volume, making the air flow of the entire system smoother and the heat dissipation effect significantly improved. This design not only improves the operating efficiency of the air-conditioning outdoor unit, but also enhances the stability and reliability of the system, and has significant benefits in extending the service life of the controller in the electrical box. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0039] Figure 1It shows a schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present invention;

[0040] Figure 2 An exploded view of an air conditioner outdoor unit according to an embodiment of the present invention is shown;

[0041] Figure 3 A schematic diagram showing the airflow direction of an outdoor unit of an air conditioner provided in an embodiment of the present invention is shown;

[0042] Figure 4 It shows a front view of an air outlet panel provided according to an embodiment of the present invention;

[0043] Figure 5 shows a top view of an air outlet panel provided according to an embodiment of the present invention;

[0044] Figure 6 shows a side view of an air outlet panel provided according to an embodiment of the present invention;

[0045] Figure 7 shows a rear view of an air outlet panel provided according to an embodiment of the present invention;

[0046] Figure 8 Shown Figure 7 AA direction diagram in;

[0047] Figure 9 Shown Figure 7 BB direction diagram in the figure;

[0048] Figure 10 A schematic structural diagram of an air outlet panel with multiple communication openings provided in an embodiment of the present invention is shown;

[0049] Figure 11 It shows a schematic structural diagram of a square recessed plate provided according to an embodiment of the present invention;

[0050] Figure 12 A schematic structural diagram of a heat dissipation structure provided according to an embodiment of the present invention is shown.

[0051] The above drawings include the following reference numerals:

[0052] 10. Outdoor unit housing;

[0053] 11. Installation cavity; 111. Heat exchange cavity; 112. Compression cavity;

[0054] 12. Air outlet panel; 121. Main board; 122. Concave plate; 123. Guide ring;

[0055] 13. Air outlet; 131. Main air outlet grille; 132. Auxiliary air outlet grille;

[0056] 14. Heat dissipation inlet; 141. Communication port;

[0057] 15. Air inlet;

[0058] 16. Upper cover;

[0059] 171. First side panel; 172. Second side panel;

[0060] 18. Chassis;

[0061] 20. Electrical box;

[0062] 30. Heat dissipation structure; 31. Heat dissipation channel; 32. Heat dissipation air inlet side; 33. Heat dissipation air outlet side; 34. Communication side; 35. Heat transfer plate; 36. Heat dissipation fins; 361. First fin; 362. Second fin; 37. Air guide cover; 38. First heat dissipation portion; 39. Second heat dissipation portion;

[0063] 40. Wind blades;

[0064] 50. Heat exchanger;

[0065] 60. Partition plate. DETAILED DESCRIPTION

[0066] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0067] like Figures 1 to 12 As shown, an embodiment of the present invention provides an air-conditioning outdoor unit, which includes: an outdoor unit housing 10, an electrical box 20 and a heat dissipation structure 30 and fan blades 40 that are interconnected. The outdoor unit housing 10 forms an installation cavity 11, and the outdoor unit housing 10 includes an air outlet panel 12, on which an air outlet portion 13 and a heat dissipation inlet 14 are spaced apart; the electrical box 20 and the heat dissipation structure 30 are both installed in the installation cavity 11, and the heat dissipation structure 30 has a heat dissipation channel 31, which is opposite to and connected to at least a portion of the heat dissipation inlet 14; the fan blades 40 are rotatably arranged in the outdoor unit housing 10, so that under the action of the fan blades 40, the air flow entering through the heat dissipation inlet 14 passes through the heat dissipation channel 31 and is discharged from the air outlet portion 13.

[0068] The air conditioner outdoor unit provided in this embodiment utilizes the rational layout of the heat dissipation inlet 14 and heat dissipation channel 31 to optimize the airflow distribution within the outdoor unit, thereby improving heat dissipation efficiency and overall performance. The design principle behind the connection between the electrical box 20 and the heat dissipation structure 30 is to ensure that heat generated by the electrical box 20 is quickly dissipated through the heat dissipation channel 31, preventing performance degradation caused by heat accumulation. The layout of the heat dissipation inlet 32 and outlet 33 guides external air into the heat dissipation channel 31, enhancing heat dissipation.

[0069] The air conditioner outdoor unit of this embodiment effectively reduces the temperature of the electrical box 20 and its radiator, improving the heat dissipation efficiency of the electrical box 20 and ensuring reliable operation of the controller, thereby extending the service life of the electrical box 20 and reducing the overall energy consumption of the air conditioner outdoor unit. Specifically, when the air conditioner outdoor unit is operating, external air enters through the heat dissipation inlet 14, passes through the heat dissipation structure 30, and is then driven by the fan blades 40 and discharged from the air outlet 13, forming an effective heat dissipation cycle.

[0070] In this embodiment, the heat dissipation structure 30 has a heat dissipation inlet 32 and a heat dissipation outlet 33 located on opposite sides of the heat dissipation structure 30. Both the heat dissipation inlet 32 and the heat dissipation outlet 33 are connected to the heat dissipation channel 31 and are formed at the outer edge of the heat dissipation structure 30. The heat dissipation inlet 32 is arranged opposite at least a portion of the heat dissipation inlet 14. The design principle of the heat dissipation structure 30 is to guide external air into the heat dissipation channel 31 through the layout of the heat dissipation inlet 32 and the heat dissipation outlet 33, thereby improving heat dissipation efficiency. The effect is to increase the air velocity at the radiator surface, improving heat dissipation, while preventing mixing with the high-temperature airflow from the heat exchanger 50 and reducing the radiator inlet temperature. Application scenarios include various air conditioning systems requiring efficient heat dissipation. This design can significantly improve the heat dissipation capacity and operational stability of air conditioning systems, especially during hot summer months. When the air conditioner outdoor unit is operating, external air enters through the heat dissipation inlet 14, flows through the heat dissipation inlet 32 of the heat dissipation structure 30, passes through the heat dissipation channel 31, and then exits through the heat dissipation outlet 33, forming an effective heat dissipation path.

[0071] Specifically, the heat dissipation structure 30 also has a connecting side 34 located between the heat dissipation air inlet side 32 and the heat dissipation air outlet side 33. The connecting side 34 is connected to the heat dissipation channel 31 and is formed at the outer edge of the heat dissipation structure 30. The connecting side 34 is located on the side of the heat dissipation structure 30 close to the air outlet 13. The design principle of the connecting side 34 is to increase the connectivity between the heat dissipation structure 30 and the fan blades 40, increase the wind speed on the surface of the radiator, and thus improve the heat dissipation efficiency. The implementation effect is to make the heat dissipation effect of the radiator more significant, reduce the temperature of the controller in the electrical box 20, and ensure the normal operation of the controller. Application scenarios include various air-conditioning systems, especially those operating in high temperature environments. The use process is that when the air-conditioning outdoor unit is running, the airflow generated by the fan blades 40 passes through the connecting side 34, accelerates the air flow on the surface of the radiator, and forms an efficient heat dissipation cycle.

[0072] Specifically, the heat dissipation structure 30 includes a heat transfer plate 35 connected to the electrical box 20 and a plurality of heat dissipation fins 36 spaced apart on the heat transfer plate 35. A heat dissipation channel 31 is formed between two adjacent heat dissipation fins. The outer edges of the plurality of heat dissipation fins 36 define a heat dissipation inlet 32, a heat dissipation outlet 33, and a connection 34. The design principle of the heat dissipation structure 30 using the heat transfer plate 35 and heat dissipation fins 36 is to improve heat dissipation efficiency by increasing the heat dissipation area. The result is that the heating elements of the controller within the electrical box 20 can quickly transfer heat to the heat transfer plate 35, which is then dissipated into the air through the heat dissipation fins 36, reducing the temperature of the electrical box 20 and ensuring stable operation of the controller. Application scenarios include various electrical devices requiring efficient heat dissipation, particularly the electrical box 20 in air conditioning systems. During operation, heat generated by the electrical box 20 is first transferred to the heat dissipation fins 36 via the heat transfer plate 35, and then effectively dissipated by air entering through the heat dissipation inlet 14.

[0073] Among them, the connecting side 34 is connected to the fan blades 40; or, the heat dissipation structure 30 also includes an air guide cover 37, which blocks at least a portion of the connecting side 34 to separate at least a portion of the connecting side 34 from the fan blades 40. The design principle of the connection between the connecting side 34 and the fan blades 40 is to increase the wind speed on the surface of the radiator and improve the heat dissipation efficiency through the openness of the connecting side 34. The implementation effect is reflected in the significant increase in the wind speed on the surface of the radiator, the improvement of the heat dissipation effect, and at the same time, it avoids mixing with the high-temperature airflow and reduces the air inlet temperature of the radiator. Application scenarios include various air-conditioning systems. Especially in the hot summer, this design can significantly improve the heat dissipation capacity and operating stability of the air-conditioning system. The use process is that when the air-conditioning outdoor unit is running, the airflow generated by the fan blades 40 directly acts on the connecting side 34, which accelerates the air flow on the surface of the radiator and forms an efficient heat dissipation cycle.

[0074] Specifically, the design principle of the air guide cover 37 is to avoid the mixing of the radiator's incoming air and the high-temperature airflow by blocking part of the area of the connecting side 34, while optimizing the distribution of the airflow and improving the heat dissipation efficiency. The implementation effect is reflected in the significant improvement of the heat dissipation effect of the radiator, which reduces the temperature of the controller in the electrical box 20 and ensures the normal operation of the controller. The application scenarios are also wide-ranging, and are suitable for various air-conditioning systems that require efficient heat dissipation, especially systems operating in high-temperature environments. The use process is that when the air-conditioning outdoor unit is running, the air guide cover 37 guides the external air directly to the radiator, avoiding mixing with the high-temperature airflow and forming an efficient heat dissipation path. The air guide cover 37 can be designed to have a structure with heat dissipation protrusions, and can be made of metal material to improve the heat dissipation effect.

[0075] In this embodiment, the heat dissipation structure 30 has a first heat dissipation part 38 and a second heat dissipation part 39. The first heat dissipation part 38 includes a plurality of first fins 361 arranged at intervals, and the second heat dissipation part 39 includes a plurality of second fins 362 arranged at intervals. The first heat dissipation part 38 is arranged on the side of the second heat dissipation part 39 away from the fan blades 40. The design principle of the first heat dissipation part 38 and the second heat dissipation part 39 is to dissipate heat through heat dissipation parts with different structures, optimize the heat dissipation effect, and avoid mixing of the radiator intake air with the high-temperature airflow. The implementation effect is reflected in the significant improvement of the heat dissipation effect of the radiator, which reduces the temperature of the controller in the electrical box 20 and ensures the normal operation of the controller. Application scenarios include various air-conditioning systems, especially those operating in high-temperature environments. The use process is that when the air-conditioning outdoor unit is running, the fin structure of the first heat dissipation part 38 and the second heat dissipation part 39 effectively guides the airflow, avoids mixing with the high-temperature airflow, and forms an efficient heat dissipation cycle.

[0076] Specifically, along the extension direction from the first heat dissipation portion 38 to the second heat dissipation portion 39, the heat dissipation width of the second fin 362 in the radial direction of the fan blade 40 gradually decreases; and / or, the minimum heat dissipation width of the first fin 361 in the radial direction of the fan blade 40 is greater than or equal to the minimum heat dissipation width of the second fin 362 in the radial direction of the fan blade 40. The design principle of the distance between the heat dissipation structure 30 and the fan blade 40 is to increase the wind speed on the surface of the radiator by optimizing the distance between the heat dissipation structure 30 and the fan blade 40, thereby improving the heat dissipation efficiency. The implementation effect is reflected in the significant enhancement of the heat dissipation effect of the radiator, reducing the temperature of the controller in the electrical box 20, and ensuring the normal operation of the controller. Application scenarios include various air-conditioning systems, especially systems operating in high temperature environments. The use process is that when the air-conditioning outdoor unit is running, the spacing design between the heat dissipation structure 30 and the fan blade 40 effectively increases the wind speed on the surface of the radiator, forming an efficient heat dissipation cycle.

[0077] In this embodiment, along the axial direction of the blades 40, the distance between the inner wall of the air outlet panel 12 and the side of the heat dissipation structure 30 facing away from the inner wall of the air outlet panel 12 is H4, and the distance between the inner wall of the air outlet panel 12 and the side of the blades 40 facing away from the inner wall of the air outlet panel 12 is H5; H4 < H5; and / or the shape of the heat dissipation inlet 14 matches the shape of the heat dissipation structure 30, or the heat dissipation inlet 14 includes multiple communication openings 141 spaced apart on the air outlet panel 12. The design principle of the distance between the heat dissipation structure 30 and the blades 40 is to increase the wind speed on the radiator surface by optimizing the distance between the heat dissipation structure 30 and the blades 40, thereby improving heat dissipation efficiency. The implementation effect is reflected in the significantly enhanced heat dissipation effect of the radiator, reducing the temperature of the controller in the electrical box 20, and ensuring the normal operation of the controller. Application scenarios include various air conditioning systems, especially those operating in high-temperature environments. In use, when the air conditioner outdoor unit is operating, the distance design between the heat dissipation structure 30 and the blades 40 effectively increases the wind speed on the radiator surface, forming an efficient heat dissipation cycle.

[0078] Specifically, the air conditioner outdoor unit also includes a partition, which is arranged on the outer wall of the air outlet panel 12 and protrudes from the outer wall of the air outlet panel 12. At least part of the partition is located on the side of the heat dissipation inlet 14 close to the air outlet portion 13; and / or the axial direction of the heat dissipation inlet 14 is inclined relative to the axis of the fan blade 40 and deviates from the axial direction of the fan blade 40. The design principle of the partition is to optimize the airflow path by arranging the partition on the air outlet panel 12, thereby avoiding the mixing of the radiator intake air and the high-temperature airflow, and at the same time increasing the wind speed on the radiator surface. The implementation effect is reflected in the significant improvement of the heat dissipation effect of the radiator, reducing the temperature of the controller in the electrical box 20, and ensuring the normal operation of the controller. The application scenarios are wide, and it is suitable for various air conditioning systems that require efficient heat dissipation, especially systems operating in high-temperature environments. The use process is that when the air conditioner outdoor unit is running, the partition guides the external air to flow directly to the radiator, avoiding mixing with the high-temperature airflow, and forming an efficient heat dissipation path.

[0079] In this embodiment, the air-conditioning outdoor unit further includes: an air-guiding structure, which is movably arranged at the heat dissipation inlet 14, and the air-guiding structure has a closed state blocking the heat dissipation inlet 14 and an air-guiding state at least partially avoiding the heat dissipation inlet 14. The design principle of the air-guiding structure is to dynamically adjust the opening state of the heat dissipation inlet 14 according to the actual heat dissipation demand and the external ambient temperature through its movable setting, thereby optimizing the heat dissipation effect. The implementation effect is reflected in the significant improvement of the heat dissipation efficiency of the radiator, which can be automatically adjusted according to different operating conditions, thereby reducing the temperature of the controller in the electrical box 20 and ensuring the normal operation of the controller. Application scenarios include various air-conditioning systems, especially systems operating in environments with large temperature differences. The use process is that when the air-conditioning outdoor unit is running, the air-guiding structure automatically adjusts the opening state according to the actual heat dissipation demand and the external ambient temperature, thereby optimizing the heat dissipation effect of the radiator.

[0080] Specifically, the air conditioner outdoor unit also includes: a first temperature detection component, a driving component and a control component. The first temperature detection component is arranged at the heat dissipation structure 30 to detect the temperature of the heat dissipation structure 30; the driving component is connected to the air guide structure; the first temperature detection component and the driving component are both connected to the control component, and the control component controls the air guide structure to be in a closed state or an air guide state according to the temperature of the heat dissipation structure 30 detected by the first temperature detection component. The design principle of the temperature detection component and the control component is to monitor the temperature of the heat dissipation structure 30 in real time, dynamically adjust the state of the air guide structure, and optimize the heat dissipation effect. The implementation effect is reflected in the significant improvement of the heat dissipation efficiency of the radiator, which can be automatically adjusted according to different operating conditions, reducing the temperature of the controller in the electrical box 20 and ensuring the normal operation of the controller. Application scenarios include various air conditioning systems, especially systems operating in environments with large temperature differences. The usage process is that when the air conditioner outdoor unit is running, the first temperature detection component monitors the temperature of the heat dissipation structure 30 in real time, and the control component automatically adjusts the state of the air guide structure according to the temperature data, thereby optimizing the heat dissipation effect of the radiator.

[0081] In this embodiment, the air conditioner outdoor unit also includes: a second temperature detection member and a third temperature detection member, the second temperature detection member is arranged in the installation cavity 11 and is located between the fan blade 40 and the air outlet 13, and the second temperature detection member is connected to the control member; the third temperature detection member is arranged in the installation cavity 11, the outdoor unit housing 10 has an air inlet 15 connected to the installation cavity 11, the third temperature detection member is arranged between the fan blade 40 and the air inlet 15, and the third temperature detection member is connected to the control member. The design principle of the second temperature detection member and the third temperature detection member is to dynamically adjust the state of the air guide structure and optimize the heat dissipation effect by monitoring the temperature distribution in the installation cavity 11 in real time. The implementation effect is reflected in the significant improvement of the heat dissipation efficiency of the radiator, which can be automatically adjusted according to different operating conditions, reducing the temperature of the controller in the electrical box 20 and ensuring the normal operation of the controller. Application scenarios include various air conditioning systems, especially systems operating in environments with large temperature differences. The usage process is that when the air conditioner outdoor unit is running, the second temperature detection component and the third temperature detection component monitor the temperature distribution in the installation cavity 11 in real time, and the control component automatically adjusts the state of the air guide structure according to the temperature data, optimizes the heat dissipation effect of the radiator, and ensures that the temperature of the controller in the electrical box 20 is within a safe range.

[0082] Among them, the control component is configured to compare the temperature difference △T between the second temperature detection component and the third temperature detection component with the preset temperature difference △T0; when △T≥△T0, the air guide structure is controlled to be in a closed state; when △T<△T0, the air guide structure is controlled to be in a closed state or an air guide state according to the temperature t detected by the first temperature detection component. By monitoring the temperature changes in the installation cavity 11 in real time, the state of the air guide structure is dynamically adjusted to optimize the heat dissipation effect. The implementation effect is reflected in the significant improvement of the heat dissipation efficiency of the radiator, which can be automatically adjusted according to different operating conditions, reducing the temperature of the controller in the electrical box 20 and ensuring the normal operation of the controller.

[0083] Correspondingly, the temperature difference ΔT can be used to determine the temperature difference between the inlet and outlet air, thereby confirming the heat dissipation of the components within the air conditioner's outdoor unit. Specifically, when ΔT ≥ ΔT0, the heat dissipation within the air conditioner's outdoor unit is effective, and thus no additional heat dissipation from the heat inlet is required. When ΔT < ΔT0, the heat dissipation of the air conditioner's outdoor unit is average, but further determination of the temperature of the electrical box, based on the temperature of the specific electrical box, is required to ensure accurate determination and control of the electrical box. Specifically, the value of ΔT0 can be between 2°C and 5°C (including the endpoints of 2°C and 5°C), and the corresponding ΔT0 can be determined based on the outdoor temperature and humidity.

[0084] The aforementioned application scenarios include various air conditioning systems, particularly those operating in environments with large temperature differences. When the outdoor air conditioner is operating, the control unit automatically adjusts the air guide structure based on the temperature difference data from the second and third temperature sensors, ensuring that the temperature of the controller inside the electrical box 20 remains within a safe range while optimizing the heat dissipation of the radiator.

[0085] In this embodiment, the air guide structure is rotatably disposed at the heat dissipation inlet 14; the control element is further configured to compare the temperature t detected by the first temperature detection element with a preset temperature t0; when t≥t0, the air guide structure is controlled to rotate to a position that avoids the heat dissipation inlet 14, or to a position parallel to the axis of the heat dissipation inlet 14; when t<t0, the air guide structure is controlled to be closed, or to a position inclined at a preset angle to the axis of the heat dissipation inlet 14. By changing the angle of the air guide structure, the opening state of the heat dissipation inlet 14 is dynamically adjusted to optimize the heat dissipation effect. The implementation effect is reflected in a significant improvement in the heat dissipation efficiency of the radiator. It can automatically adjust according to different operating conditions, reduce the temperature of the controller in the electrical box 20, and ensure the normal operation of the controller. Application scenarios include various air conditioning systems, especially those operating in environments with large temperature differences. In use, when the air conditioner outdoor unit is running, the air guide structure automatically adjusts its angle based on the data from the first temperature detection element, optimizing the heat dissipation effect of the radiator and ensuring that the temperature of the controller in the electrical box 20 is within a safe range.

[0086] Specifically, t0 is within the temperature range within which the electrical box 20 can operate normally, and t0 is generally a slightly higher value. That is, if t0 is exceeded, the electrical box 20 may face the possibility of not being able to operate normally under predictable circumstances. Specifically, t0 can be the maximum value of the normal operating temperature range of the electrical box 20 minus a certain temperature difference value, and the certain temperature difference value can be 3°C-6°C (including the endpoints of 3°C and 6°C). Specifically, the normal operating temperature range of the electrical box 20 is generally -5°C-40°C, and t0 can be 34°C-37°C (including the two endpoints).

[0087] Specifically, the air outlet portion 13 has a main air outlet grille 131 and an auxiliary air outlet grille 132 that are interconnected. The auxiliary air outlet grille 132 surrounds the periphery of the main air outlet grille 131 and protrudes from the main air outlet grille 131. The side of the auxiliary air outlet grille 132 away from the main air outlet grille 131 is connected to the air outlet panel 12. The angle between the extension direction of the auxiliary air outlet grille 132 and the axial direction of the fan blade 40 is α, 0°<α<90°. The design principle of the main air outlet grille 131 and the auxiliary air outlet grille 132 is to increase the air outlet area of the air flow, optimize the air flow distribution, reduce wind resistance, increase the air volume, and thus improve the heat dissipation efficiency through the grille structure. The implementation effect is reflected in the significant enhancement of the heat dissipation effect of the radiator, the reduction of the temperature of the controller in the electrical box 20, and the normal operation of the control component. Application scenarios include various air-conditioning systems, especially those operating in high-temperature environments. The usage process is that when the air conditioner outdoor unit is running, the air flow generated by the fan blades 40 passes through the main air outlet grille 131 and the auxiliary air outlet grille 132, forming an effective heat dissipation cycle, thereby reducing the temperature of the control components in the electrical box 20.

[0088] In this embodiment, the air outlet panel 12 includes a main body 121 and a recessed plate 122, which are interconnected. The recessed plate 122 is arranged to protrude relative to the main body 121 toward the mounting cavity 11. The auxiliary air outlet grille 132 is connected to the recessed plate 122 and is spaced apart from at least a portion of the recessed plate 122, so that air enters the auxiliary air outlet grille 132 through the gap between the auxiliary air outlet grille 132 and the recessed plate 122. The provision of the recessed plate 122 optimizes the airflow path, reduces wind resistance, increases airflow, and thus improves heat dissipation efficiency. The implementation effect is reflected in a significantly enhanced heat dissipation effect of the radiator, reducing the temperature of the control components within the electrical box 20 and ensuring the normal operation of the controller. Application scenarios include various air conditioning systems, particularly those operating in high-temperature environments. In use, when the air conditioner outdoor unit is operating, the airflow generated by the fan blades 40 passes through the gap between the recessed plate 122 and the auxiliary air outlet grille 132, forming an effective heat dissipation cycle and reducing the temperature of the control components within the electrical box 20.

[0089] Specifically, along the extension direction from the installation cavity 11 to the outside of the outdoor unit housing 10, the distance between the recessed plate 122 and the auxiliary air outlet grille 132 gradually increases; and / or, the main air outlet grille 131 is arranged to protrude from the outer wall of the air outlet panel 12; and / or, the air outlet panel 12 also includes a guide ring 123, which is connected to the recessed plate 122 and is located on the side of the recessed plate 122 close to the installation cavity 11. The guide ring 123 is arranged around the periphery of the recessed plate 122, and the guide cross-sectional area enclosed by the guide ring 123 is less than or equal to the cross-sectional area enclosed by the auxiliary air outlet grille 132.

[0090] Specifically, the design principle of gradually increasing the distance between the recessed plate 122 and the auxiliary air outlet grille 132 is to improve the heat dissipation efficiency by optimizing the airflow path, reducing wind resistance, and increasing the air volume. The implementation effect is reflected in the significant enhancement of the heat dissipation effect of the radiator, reducing the temperature of the controller in the electrical box 20, and ensuring the normal operation of the controller. Application scenarios include various air-conditioning systems, especially those operating in high-temperature environments. The use process is that when the air-conditioning outdoor unit is running, the airflow generated by the fan blades 40 passes through the gradually increasing gap between the recessed plate 122 and the auxiliary air outlet grille 132, forming an effective heat dissipation cycle, and reducing the temperature of the controller in the electrical box 20. The design principle of the guide ring 123 is to further optimize the airflow path, reduce wind resistance, and increase air volume through its cooperation with the recessed plate 122, thereby improving the heat dissipation efficiency. The implementation effect is reflected in the significant enhancement of the heat dissipation effect of the radiator, reducing the temperature of the control components in the electrical box 20, and ensuring the normal operation of the controller. The application scenarios are also wide-ranging and suitable for various air-conditioning systems that require efficient heat dissipation, especially systems operating in high-temperature environments. The usage process is that when the air conditioner outdoor unit is running, the cooperation between the guide ring 123 and the recessed plate 122 effectively guides the airflow, forms an efficient heat dissipation path, and reduces the temperature of the controller in the electrical box 20.

[0091] The installation chamber 11 of the air conditioner outdoor unit in this embodiment is divided into a heat exchange chamber 111 and a compression chamber 112 by a partition plate 60. The outdoor unit housing 10 further includes an upper cover 16, a first side plate 171, a second side plate 172, and a bottom plate 18. The first side plate 171 and the second side plate 172 are disposed opposite and spaced apart from each other. The bottom plate 18 and the upper cover 16 are disposed opposite and spaced apart from each other, with the upper cover 16 positioned above the bottom plate 18. A heat dissipation structure 30 is mounted on the partition plate 60 to effectively dissipate heat outside the compression chamber 112.

[0092] In the above embodiment, the recessed plate 122 may be circular, rectangular, or square, and the main air outlet grille 131 and the auxiliary air outlet grille 132 are both disposed on the recessed plate 122, with air being discharged through the main air outlet grille 131 and the auxiliary air outlet grille 132. Specifically, when the recessed plate 122 is circular, the corresponding diameter of the recessed plate 122 is D3, the corresponding diameter of the guide ring 123 is D1, and the diameter of the grille structure is D2, where D3>D2>D1.

[0093] In the axial direction along the wind turbine rotation axis, the depression depth of the depressed plate 122 is H1, and the height of the grille structure is H2, where H2 ≥ H1. The height of the side opening of the grille is H2. Compared with the prior art with only a front opening, the grille opening area is increased, the air resistance is reduced, the air volume of the fan is increased, the pressure in the heat exchanger cavity is further reduced, and the air volume flowing in from the air intake opening (the air intake opening corresponds to the heat dissipation inlet 14) is increased, thereby increasing the surface wind speed of the radiator and improving the air-cooling effect of the radiator. H3 is the overall installation height of the depressed plate and the guide ring installed together.

[0094] Specifically, the depressed plate 122 and the grille structure are the outlets of the air flow of the outdoor fan. The axial diameter D2 range of the grille structure is the outlet in the axial direction of the air outlet of the wind turbine. The side opening height of the grille structure is H2, forming a lateral outlet. The panel depression part makes the lateral air outlet of the grille smoother, and the air outlet area is (2πD2×H2 + π(D2) 2 / 4), increasing the lateral air outlet area, reducing the resistance of the outdoor fan, and increasing the air volume. Since the air for air-cooling the heat dissipation structure is introduced from the heat dissipation inlet 14 in front of the machine body and has not passed through the air-conditioning heat exchanger for heat exchange, the temperature is lower than the inlet air temperature of the prior art, improving the air-cooling effect of the radiator.

[0095] Specifically, the air conditioner outdoor unit includes an outdoor unit housing, an electrical box 20 and its heat dissipation structure 30, a wind turbine 40, a heat exchanger 50, a partition plate 60, a compressor and its pipelines, etc. The outdoor unit housing includes a chassis, an upper cover, a left side plate, and a right side plate. Air is introduced from the heat dissipation inlet of the outdoor unit housing to the cavity for cooling the radiator on the electrical box. The heat exchange cavity is composed of the outdoor unit housing, the partition plate, and the upper cover. The distance from the air guide cover to the outer cover panel is H4, and the distance from the inlet side end of the wind turbine to the outer cover panel is H5. Preferably, H4 < H5. When the wind turbine 40 operates, the air flow path flowing through the heat dissipation structure 30 is: entering from the air intake opening (the air intake opening can also be called the heat dissipation inlet 14); passing through the heat exchange cavity 111 and the surface of the radiator fins installed therein; being sucked by the wind turbine and then discharged from the machine body. The partition plate divides the outer machine cavity into a heat exchange cavity and a compression cavity; the heat exchange cavity is provided with a heat exchanger, a fan, and a heat exchange cavity 111; the compression cavity 112 is provided with a compressor and its pipelines and an electrical box. There is a groove on the partition plate 60 for placing the heat dissipation structure 30 (the heat dissipation structure 30 can also be called a radiator), and the radiator is placed in the groove and extends into the heat exchange cavity 111. The electrical box is provided with a radiator, which has an installation plane and heat dissipation fins 36. The heat dissipation fins can be in a fin structure. The installation plane is connected to the heat-generating components of the controller in the electrical box, and most of the fins are in the heat exchange cavity 111.

[0096] Specifically, the wind turbine in this embodiment is driven by a motor.

[0097] The heating element of the electrical box 20 transfers heat to the radiator through the mounting plane. The heat dissipation fins 36 of the radiator increase the heat dissipation area. Since the fin surface absorbs the heat of the controller components and has a high surface temperature, heat convection occurs between the fins and the air on the surface. In this way, the heat of the components in the electrical box is continuously transferred outward, keeping the component temperature within the allowable range and ensuring the reliability of the controller operation in the electrical box.

[0098] When the air conditioner operates, the fan blade 40 of the fan rotates, causing the air flow to move along the direction of the rotation axis. The internal pressure of the cavity where the heat exchanger is located decreases, and the air flow is sucked from the outside of the body into the heat exchange cavity 111. The outside air flows through the heat exchanger 50 for heat exchange and then flows out of the body through the fan blade 40 and the grille structure. At the same time, due to the low pressure in the heat exchange cavity 111, the outside air near the air intake opening of the outer cover is sucked by the fan. Under the guiding effect of the air guide cover (the air guide cover can also be called the air deflector 123), most of the air flow entering from the air intake opening can flow through the fin surface of the heat dissipation structure 30, and after convective heat exchange, it is discharged from the fan. By introducing the low-temperature outside air through the air intake opening of the outer cover to cool the radiator, the heat dissipation efficiency of the radiator is improved.

[0099] The low pressure formed by the rotation of the fan blade 40 of the fan is the driving force for the air flow of the outdoor unit of the air conditioner. One air flow is from the outside through the air conditioner heat exchanger into the heat exchanger cavity, and the other air flow is from the outside through the air intake opening of the outer cover, reaching the heat exchanger cavity after passing through the radiator cavity. These two air flows have opposite directions of flow and collide with each other at the confluence, resulting in a decrease in speed. If the radiator cavity is too close to the heat exchanger, the low-temperature air flow from the air intake opening will be reduced. In this technical solution, H4 < H5 is set. Since the air flow from the radiator cavity is closer to the fan blade, it will not converge with the air flow flowing from the heat exchanger to the fan blade, reducing the adverse effects of the high-temperature air flow passing through the heat exchanger. Therefore, by introducing the low-temperature outside air through the air intake opening of the outer cover to cool the radiator, the problem of high inlet air temperature of the radiator is solved, the air-cooling effect is improved, the temperature rise of the heating element of the controller is reduced, and the reliability of the controller is ensured.

[0100] Through the heat dissipation cavity, the low-temperature air flowing in from the air intake opening passes through the radiator and its fins, making the air flow more concentrated to flow between the fins, improving; on the other hand, it avoids the mixing of the low-temperature air flowing in through the air intake opening and the high-temperature air flowing through the air conditioner heat exchanger, making the inlet air temperature of the radiator low and improving the heat exchange effect.

[0101] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: The structure of the air conditioner outdoor unit provided herein achieves efficient and stable heat dissipation by optimizing key components such as the heat dissipation structure 30, the air outlet 13, and the air guide structure. This reduces the temperature of the controller within the electrical box 20, ensures normal operation of the controller, and improves the overall performance and user experience of the air conditioning system. The above-mentioned embodiments address the problem of low wind speed on the radiator surface and the problem of high temperatures used to dissipate heat from the radiator. The outdoor unit housing provided by this embodiment can increase the air volume of the air conditioner outdoor unit, increase the wind speed on the radiator surface, and improve the heat dissipation effect. The above-mentioned embodiment provides a cavity with a heat dissipation inlet 14 at the front of the outdoor unit housing to introduce air to dissipate heat from the electrical box radiator, thereby reducing the inlet air temperature entering the radiator and improving the heat dissipation effect. Introducing low-temperature external air through the heat dissipation inlet to dissipate heat from the radiator increases the grille outlet area of the outdoor unit housing, reduces the overall grille wind resistance, reduces the pressure in the heat exchange chamber, increases the wind speed on the radiator surface, improves the heat dissipation effect, reduces the temperature rise of the controller heating element, and ensures the reliability of the controller.

[0102] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0103] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0104] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0105] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0106] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0107] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An air conditioner outdoor unit, characterized in that: include: An outdoor unit housing (10), the outdoor unit housing (10) enclosing a mounting cavity (11), the outdoor unit housing (10) comprising an air outlet panel (12), an air outlet portion (13) and a heat dissipation inlet (14) being spaced apart on the air outlet panel (12); The interconnected electrical box (20) and the heat dissipation structure (30) are both installed in the installation cavity (11); the heat dissipation structure (30) has a heat dissipation channel (31); the heat dissipation channel (31) is arranged opposite to and in communication with at least a portion of the heat dissipation inlet (14); The fan blade (40) is rotatably arranged in the outdoor unit housing (10), so that under the action of the fan blade (40), the wind flow entering through the heat dissipation inlet (14) passes through the heat dissipation channel (31) and is discharged from the air outlet (13).

2. The air conditioner outdoor unit according to claim 1, characterized in that: The heat dissipation structure (30) has a heat dissipation air inlet side (32) and a heat dissipation air outlet side (33) located relatively on both sides of the heat dissipation structure (30); the heat dissipation air inlet side (32) and the heat dissipation air outlet side (33) are both connected to the heat dissipation channel (31) and formed at the outer edge of the heat dissipation structure (30); the heat dissipation air inlet side (32) is arranged opposite to at least a portion of the heat dissipation inlet (14).

3. The air conditioner outdoor unit according to claim 2, characterized in that: The heat dissipation structure (30) further comprises a communication side (34) located between the heat dissipation air inlet side (32) and the heat dissipation air outlet side (33); the communication side (34) is connected to the heat dissipation channel (31) and is formed at the outer edge of the heat dissipation structure (30); the communication side (34) is located on a side of the heat dissipation structure (30) close to the air outlet portion (13).

4. The air conditioner outdoor unit according to claim 3, characterized in that: The heat dissipation structure (30) comprises a heat transfer plate (35) connected to the electrical box (20) and a plurality of heat dissipation fins (36) spaced apart on the heat transfer plate (35), a heat dissipation channel (31) being formed between two adjacent heat dissipation fins, and outer edges of the plurality of heat dissipation fins (36) forming the heat dissipation air inlet side (32), the heat dissipation air outlet side (33) and the communication side (34); Wherein, the communication side (34) is connected to the fan blade (40); or, The heat dissipation structure (30) further includes an air guide cover (37), wherein the air guide cover (37) blocks at least a portion of the communication side (34) to isolate at least a portion of the communication side (34) from the fan blade (40).

5. The air conditioner outdoor unit according to claim 2, characterized in that: The heat dissipation structure (30) comprises a first heat dissipation portion (38) and a second heat dissipation portion (39), wherein the first heat dissipation portion (38) comprises a plurality of first fins (361) arranged at intervals, and the second heat dissipation portion (39) comprises a plurality of second fins (362) arranged at intervals, and the first heat dissipation portion (38) is arranged on a side of the second heat dissipation portion (39) away from the fan blade (40); Wherein, along the extension direction from the first heat dissipation portion (38) to the second heat dissipation portion (39), the heat dissipation width of the second fin (362) in the radial direction of the fan blade (40) gradually decreases; and / or, The minimum value of the heat dissipation width of the first fin (361) in the radial direction of the fan blade (40) is greater than or equal to the minimum value of the heat dissipation width of the second fin (362) in the radial direction of the fan blade (40).

6. The air conditioner outdoor unit according to claim 1, characterized in that: Along the axial direction of the fan blade (40), the distance between the side of the heat dissipation structure (30) away from the inner wall of the air outlet panel (12) and the inner wall of the air outlet panel (12) is H4, and the distance between the side of the fan blade (40) away from the inner wall of the air outlet panel (12) and the inner wall of the air outlet panel (12) is H5; H4<H5; and / or, The shape of the heat dissipation inlet (14) is adapted to the shape of the heat dissipation structure (30), or the heat dissipation inlet (14) includes a plurality of communication openings (141) spaced apart on the air outlet panel (12).

7. The air conditioner outdoor unit according to claim 1, characterized in that: The air conditioner outdoor unit further comprises a partition plate, the partition plate being arranged on the outer wall of the air outlet panel (12) and protruding from the outer wall of the air outlet panel (12), at least a portion of the partition plate being located on a side of the heat dissipation inlet (14) close to the air outlet portion (13); and / or, The axial direction of the heat dissipation inlet (14) is tilted relative to the axial direction of the fan blade (40) and deviates from the axial direction of the fan blade (40).

8. The air conditioner outdoor unit according to claim 1, characterized in that: The air conditioner outdoor unit further includes: An air guide structure is movably arranged at the heat dissipation inlet (14), and the air guide structure has a closed state in which the heat dissipation inlet (14) is blocked, and an air guide state in which the heat dissipation inlet (14) is at least partially avoided.

9. The air conditioner outdoor unit according to claim 8, characterized in that: The air conditioner outdoor unit further includes: a first temperature detection element, arranged at the heat dissipation structure (30) to detect the temperature of the heat dissipation structure (30); a driving member, the driving member being drivingly connected to the air guide structure; A control member, wherein the first temperature detection member and the driving member are both connected to the control member, and the control member is configured to control the air guide structure to be in the closed state or the air guide state according to the temperature of the heat dissipation structure (30) detected by the first temperature detection member.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The air conditioner outdoor unit further includes: a second temperature detecting component, disposed in the installation cavity (11) and located between the fan blade (40) and the air outlet (13), the second temperature detecting component being connected to the control component; A third temperature detection component is arranged in the installation cavity (11); the outdoor unit housing (10) has an air inlet (15) communicating with the installation cavity (11); the third temperature detection component is arranged between the fan blade (40) and the air inlet (15); and the third temperature detection component is connected to the control component; Wherein, the control component is configured to: compare the temperature difference △T between the second temperature detection component and the third temperature detection component with a preset temperature difference △T0; when △T≥△T0, control the air-guiding structure to be in the closed state; when △T<△T0, control the air-guiding structure to be in the closed state or the air-guiding state according to the temperature t detected by the first temperature detection component.

11. The air conditioner outdoor unit according to claim 9, characterized in that: The air guide structure is rotatably arranged at the heat dissipation inlet (14); the control component is configured to: compare the temperature t detected by the first temperature detection component with a preset temperature t0; when t≥t0, control the air guide structure to rotate to a position avoiding the heat dissipation inlet (14), or control the air guide structure to be parallel to the axial direction of the heat dissipation inlet (14); when t<t0, control the air guide structure to be in the closed state, or control the air guide structure to be inclined at a preset angle to the axial direction of the heat dissipation inlet (14).

12. The air conditioner outdoor unit according to claim 1, characterized in that: The air outlet portion (13) comprises a main air outlet grille (131) and an auxiliary air outlet grille (132) which are connected to each other. The auxiliary air outlet grille (132) is arranged around the periphery of the main air outlet grille (131). The side of the auxiliary air outlet grille (132) away from the main air outlet grille (131) is connected to the air outlet panel (12). The angle between the extension direction of the auxiliary air outlet grille (132) and the axial direction of the fan blade (40) is α, and 0°<α<90°.

13. The air conditioner outdoor unit according to claim 12, characterized in that: The air outlet panel (12) comprises a main body (121) and a recessed plate (122) connected to each other, the recessed plate (122) being arranged to protrude into the installation cavity (11) relative to the main body (121), and the auxiliary air outlet grille (132) being connected to the recessed plate (122) and spaced apart from at least part of the recessed plate (122) so that airflow enters the auxiliary air outlet grille (132) through a gap between the auxiliary air outlet grille (132) and the recessed plate (122).

14. The air conditioner outdoor unit according to claim 13, characterized in that: Along the extension direction from the installation cavity (11) to the outside of the outdoor unit housing (10), the distance between the recessed plate (122) and the auxiliary air outlet grille (132) gradually increases; and / or, The main air outlet grille (131) is arranged to protrude from the outer wall of the air outlet panel (12); and / or, The air outlet panel (12) further includes a guide ring (123), the guide ring (123) being connected to the recessed plate (122) and being located on a side of the recessed plate (122) close to the mounting cavity (11), the guide ring (123) being arranged around the periphery of the recessed plate (122), and the guide cross-sectional area enclosed by the guide ring (123) being less than or equal to the cross-sectional area enclosed by the auxiliary air outlet grille (132).

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