Air conditioner outdoor unit

Abstract

The invention discloses an air conditioner outdoor unit which comprises a heat exchanger pipe body and a convection assembly. A heat dissipation coating containing graphene is arranged on the surface of the outer side of the heat exchanger pipe body. The convection assembly is arranged adjacent to the heat exchanger pipe body and used for guiding air around the heat exchanger pipe body to form airflow to flow in the direction away from the heat exchanger pipe body. According to the air conditioner outdoor unit, the heat dissipation coating containing the graphene material is arranged on the outer side surface of the heat exchanger pipe body so that the heat exchange coefficient of the heat exchanger pipe body can be increased, then convection heat exchange with the heat exchanger pipe body is enhanced in cooperation with the convection assembly, and the overall energy efficiency of the air conditioner outdoor unit can be improved.

Description

Technical Field

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

[0002] The outdoor unit of an air conditioner is an indispensable part of the air conditioning system. The heat exchangers inside the outdoor units of air conditioners currently on the market are mostly made of copper tubes and fins. The heat exchanger exchanges heat with the outside world by cooperating with the convection heat exchange method of the fan blades and fan components. In traditional outdoor units of air conditioners, the heat exchange efficiency of the heat exchanger copper tubes and fins is low. In the absence of convection, it is difficult for the heat exchanger copper tubes or fins to dissipate heat by radiation, resulting in low heat exchange efficiency and poor heat exchange effect of the entire heat exchanger. The compressor needs to operate at high power to ensure the heat exchange capacity of the entire machine, resulting in low energy efficiency of the entire air conditioner outdoor unit. Summary of the invention

[0003] An air conditioner outdoor unit is provided to solve the problem that the heat exchange effect of the existing air conditioner outdoor unit heat exchanger is poor, resulting in low air conditioner energy efficiency.

[0004] An embodiment of the present invention provides an air conditioner outdoor unit, which includes:

[0005] A heat exchanger tube body, the outer surface of which is provided with a heat dissipation coating containing graphene;

[0006] The convection component is arranged adjacent to the heat exchanger tube body, and is used for guiding the air around the heat exchanger tube body to form an airflow and flow in a direction away from the heat exchanger tube body.

[0007] In the air conditioner outdoor unit provided by the embodiment of the present invention, a toothed thread is convexly provided on the inner surface of the heat exchanger tube body.

[0008] In the air conditioner outdoor unit provided in the embodiment of the present invention, the thickness of the heat dissipation coating in the radial direction of the heat exchanger tube body is 10 μm-20 μm.

[0009] In the air conditioner outdoor unit provided in an embodiment of the present invention, the convection component includes an annular guide member and a fan assembly, the annular guide member is arranged adjacent to the heat exchanger tube body, an annular wind groove is formed inside the annular guide member, the front end of the annular wind groove is close to the heat exchanger tube body and leads to the radial inner side of the annular guide member, and the rear end is away from the heat exchanger tube body, the area of ​​the front end of the annular wind groove is larger than the area of ​​the rear end to form a pressure difference, and the fan assembly is arranged on the outside of the annular guide member and leads to the annular wind groove, wherein the fan assembly is used to generate airflow into the annular wind groove so that the airflow is accelerated to flow toward the radial inner side of the annular guide member and flows in a direction away from the heat exchanger tube body according to the pressure difference in the annular wind groove.

[0010] In the air conditioner outdoor unit provided in an embodiment of the present invention, the annular air guide member includes an outer air ring and an inner air ring, the outer air ring is arranged on the radial outside of the inner air ring, the inner surface of the outer air ring and the outer surface of the inner air ring are spaced apart to form the annular air groove, the front end of the annular air groove leads to the radial inside of the inner air ring and is open in the direction away from the heat exchanger tube body, the fan assembly is arranged on the radial outside of the outer air ring and directly leads to the annular air groove, wherein the inner diameter of the inner air ring gradually increases from the side close to the heat exchanger tube body to the side away from the heat exchanger tube body.

[0011] In the air conditioner outdoor unit provided in the embodiment of the present invention,

[0012] In the air conditioner outdoor unit provided in an embodiment of the present invention, the annular guide member also includes an air inlet tube that is interconnected on both sides, the air inlet tube is connected to the radial outer side of the outer air ring and its interior leads to the annular wind groove, and the fan assembly is arranged inside the air inlet tube.

[0013] In the air conditioner outdoor unit provided in the embodiment of the present invention, the air inlet cylinder is provided with a plurality of air inlets distributed at intervals along its circumference, and the air inlets penetrate both inner and outer sides of the air inlet cylinder.

[0014] In the air conditioner outdoor unit provided in an embodiment of the present invention, the fan assembly includes a rotating drive component and axial flow fan blades, the axial flow fan blades are arranged inside the air inlet cylinder along the axis of the air inlet cylinder, and the rotating drive component is fixed to the inner side of the air inlet cylinder and connected to the axial flow fan blades, wherein the rotating drive component is used to drive the axial flow fan blades to rotate to generate airflow.

[0015] In the air conditioner outdoor unit provided in an embodiment of the present invention, the heat exchanger tube body includes a plurality of heat exchange tube segments arranged in parallel and spaced apart in the vertical direction, and the air conditioner outdoor unit also includes a tube body support, and the tube body support is provided with a plurality of through holes spaced apart in sequence along the axial direction, and the heat exchange tube segments are laterally inserted into the through holes to be connected to the tube body support.

[0016] In the air conditioner outdoor unit provided in the embodiment of the present invention, a rubber ring is embedded in the inner side of the through hole, and the heat exchange pipe section is passed through the rubber ring.

[0017] The present invention provides an air conditioner outdoor unit, the air conditioner outdoor unit comprises a heat exchanger tube body and a convection component; the heat exchanger tube body is provided with a heat dissipation coating containing graphene on its outer surface; the convection component is arranged adjacent to the heat exchanger tube body, and the convection component is used to guide the air around the heat exchanger tube body to form an airflow and flow in a direction away from the heat exchanger tube body. The air conditioner outdoor unit of the present application improves the heat transfer coefficient of the heat exchanger tube body by arranging a heat dissipation coating containing graphene material on the outer surface of the heat exchanger tube body, and then cooperates with the convection component to strengthen the convective heat exchange with the heat exchanger tube body, so that the overall energy efficiency of the air conditioner outdoor unit is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0019] Figure 1 A disassembled rear view of an air conditioner outdoor unit provided by an embodiment of the present invention;

[0020] Figure 2 A disassembled stereoscopic diagram of an air conditioner outdoor unit provided by an embodiment of the present invention;

[0021] Figure 3 An assembly diagram of a heat exchanger tube body and a tube body support provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a toothed thread provided in an embodiment of the present invention;

[0023] Figure 5 A front view of a convection assembly provided by an embodiment of the present invention;

[0024] Figure 6 A three-dimensional diagram of a convection assembly provided by an embodiment of the present invention;

[0025] Figure 7 A side view of a convection assembly provided by an embodiment of the present invention;

[0026] Figure 8 A side sectional view of an annular flow guide provided in an embodiment of the present invention;

[0027] Fig. 9 A schematic diagram of convection of an annular flow guide provided in an embodiment of the present invention;

[0028] Fig.10 An exploded view of an annular flow guide provided in an embodiment of the present invention;

[0029] Fig.11An exploded view of a convection assembly provided by an embodiment of the present invention;

[0030] Fig.12 A three-dimensional diagram of an outer air ring provided in an embodiment of the present invention;

[0031] Fig.13 An exploded view of a fan assembly provided by an embodiment of the present invention;

[0032] Fig.14 for Figure 3 A magnified view of part A;

[0033] Fig.15 A three-dimensional diagram of an air conditioner outdoor unit provided by an embodiment of the present invention;

[0034] Fig.16 A front view of an air conditioner outdoor unit provided by an embodiment of the present invention;

[0035] Fig.17 A side view of an air conditioner outdoor unit provided by an embodiment of the present invention;

[0036] The reference numerals in the figures are:

[0037] 10. Heat exchanger tube body; 11. Heat exchange tube section; 101. Toothed thread; 20. Convection assembly; 21. Annular guide; 201. Annular wind slot; 211. Outer wind ring; 212. Inner wind ring; 213. Air inlet cylinder; 231. Air inlet; 22. Fan assembly; 221. Rotating drive member; 222. Axial fan blade; 40. Casing; 50. Tube bracket; 501. Through hole; 60. Protective grille. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Reference Figures 1 to 3 , which shows an embodiment of the air conditioner outdoor unit provided by the present invention. The structure and working principle of the air conditioner outdoor unit are described in detail below in conjunction with the drawings of the specification. The air conditioner outdoor unit includes a heat exchanger tube body 10 and a convection component 22. The outer surface of the heat exchanger tube body 10 is provided with a heat dissipation coating containing graphene (not shown in the figure); the convection component 20 is arranged adjacent to the heat exchanger tube body 10, and the convection component 20 is used to guide the air around the heat exchanger tube body 10 to form an airflow and flow in a direction away from the heat exchanger tube body 10.

[0040] In this embodiment, the air conditioner outdoor unit includes a heat exchanger tube body 10, an annular guide member 21 and a fan assembly 22. In addition, the air conditioner outdoor unit also includes a housing 40, a compressor and other components. The heat exchanger tube body 10 is also an important component of the air conditioner outdoor unit heat exchanger. The heat exchanger tube body 10 is a serpentine tube structure as a whole. The high-temperature and high-pressure refrigerant generated by the compressor flows through the heat exchanger tube body 10 and exchanges heat with the outside through the heat exchanger tube body 10. The outer surface of the heat exchanger tube body 10 of this embodiment is covered with a heat dissipation coating containing graphene. The heat dissipation coating is specifically a graphene composite material. In addition to the graphene material, the heat dissipation coating also contains other materials such as corrosion-resistant materials. The heat dissipation coating is coated on the outer surface of the heat exchanger tube body 10 through a spraying and baking process. The convection component 20 is arranged adjacent to the heat exchanger tube body 10 as a whole. It is mainly used to guide the air around the heat exchanger tube body 10 to form an airflow and make the airflow flow in a direction away from the heat exchanger tube body 10, so as to form convection to take away the heat generated by the heat exchanger tube body 10, so that the heat of the heat exchanger tube body 10 continues to flow to the external environment with the airflow. The convection component can be any structure that can guide air to generate airflow, such as a fan, an air pump, etc. In practical applications, the thermal conductivity of graphene can reach 5300W / (m·K), and the radiation coefficient is 0.95, while the heat exchanger tube 10 is usually designed with copper material, and the thermal conductivity of copper is only 401W / (m·K), and the radiation coefficient is 0.05. By setting a heat dissipation coating containing graphene on the outer surface of the heat exchanger tube 10, according to the basic heat transfer formula Q=KFΔtm, wherein Q is the heat transfer amount, K is the heat transfer coefficient, F is the heat exchange area, and Δtm is the heat exchange temperature difference, due to the increase in the heat transfer coefficient K, in the absence of convection, that is, when the convection component 20 is not running, the heat exchanger tube 10 can also efficiently exchange heat with the air, and by cooperating with the convection component 20 to enhance convection, the heat exchange capacity of the heat exchanger tube 10 is greatly improved, so that the energy efficiency of the entire air conditioner outdoor unit is improved.

[0041] The air conditioner outdoor unit of this embodiment improves the heat transfer coefficient of the heat exchanger tube by providing a heat dissipation coating containing graphene material on the outer surface of the heat exchanger tube body, and then cooperates with a convection component to strengthen convection heat transfer with the heat exchanger tube body, so that the overall energy efficiency of the air conditioner outdoor unit is higher.

[0042] In one embodiment, referring to Figure 4, the inner surface of the heat exchanger tube body 10 is convexly provided with a toothed thread 101. In specific implementation, the heat exchanger tube body 10 actually dissipates heat from the high-temperature and high-pressure refrigerant flowing inside it, and the heat exchange capacity of the heat exchanger tube body 10 is not only affected by the material of the heat exchanger tube body 10 itself, but also related to the contact area between the heat exchanger tube body 10 and the fluid. In this embodiment, a toothed thread 101 is provided on the inner surface of the heat exchanger tube body 10. The toothed thread 101 is a protruding structure on the inner surface of the heat exchanger tube body 10. The toothed thread 101 is arranged on the inner surface of the tube body along the axial extension of the heat exchanger. By providing the toothed thread 101 on the inner surface of the heat exchanger tube body 10, the heat exchanger tube body 10 has a larger contact area with the refrigerant fluid, which effectively improves the heat exchange capacity of the heat exchanger tube body 10. In combination with the fan assembly 22 and the annular guide 21 for enhanced convection, the heat exchange capacity of the heat exchanger tube body 10 can be greatly improved.

[0043] Furthermore, the thickness of the heat dissipation coating in the radial direction of the heat exchanger tube body 10 is 10μm-20μm. In specific implementations, the different thicknesses of the heat dissipation coating in the radial direction of the heat exchanger tube body 10 will affect the overall heat exchange effect of the heat exchanger tube body 10. If the thickness is too thin, the heat exchange gain of the heat exchanger tube body 10 is small, and if the thickness is too large, the heat dissipation is slow, and the heat exchange effect cannot reach the ideal state. Therefore, a suitable thickness can enable the heat exchanger tube body 10 to achieve the best heat exchange effect. In this embodiment, the thickness of the heat dissipation coating in the radial direction of the heat exchanger tube body 10 is designed to be 10μm-20μm, the maximum design is 20μm, the minimum design is 10μm, and the preferred design is 15μm. According to actual measurements, the thickness of the heat dissipation coating in the radial direction of the heat exchanger tube body 10 is designed to be in the range of 10μm-20μm, and the heat exchange performance of the heat exchanger tube body 10 is relatively excellent.

[0044] In one embodiment, referring to Figures 5 to 9The convection component 20 includes an annular guide member 21 and a fan component 22. The annular guide member 21 is arranged adjacent to the heat exchanger tube body 10. An annular wind groove 201 is formed inside the annular guide member 21. The front end of the annular wind groove 201 is close to the heat exchanger tube body 10 and leads to the radial inner side of the annular guide member 21, and the rear end is away from the heat exchanger tube body 10. The area of ​​the front end of the annular wind groove 201 is larger than the area of ​​the rear end to form a pressure difference. The fan component 22 is arranged on the outer side of the annular guide member 21 and leads to the annular wind groove 201, wherein the fan component 22 is used to generate airflow into the annular wind groove 201, so that the airflow is accelerated to flow to the radial inner side of the annular guide member 21 and flows in a direction away from the heat exchanger tube body 10 according to the pressure difference in the annular wind groove 201. In a specific implementation, the convection component 20 includes an annular guide member 21 and a fan component 22. The annular guide member 21 is arranged adjacent to the heat exchanger tube body 10, and the axis of the annular guide member 21 faces the heat exchanger tube body 10. The annular guide member 21 is an annular cylindrical structure as a whole. An annular wind groove 201 is formed inside the annular guide member 21 along its own circumference. The annular wind groove 201 is an annular groove structure with a certain axial length, which is mainly used to form a high-speed airflow. The front end of the annular wind groove 201 is close to the heat exchanger tube body 10 and leads to the radial inner side of the annular guide member 21. Specifically, the front end of the annular wind groove 201 passes through the radial inner side of the annular guide member 21 through a narrow annular gap, and the rear end of the annular wind groove 201 is far away from the heat exchanger tube body 10. The area of ​​the front end of the annular wind groove 201 is larger than the area of ​​the rear end, such as Figure 8 and Fig. 9 As shown, F represents the front end and B represents the rear end. Specifically, the area of ​​the annular wind slot 201 gradually expands from its rear end to its front end, and the space from the rear end to the front end of the annular wind slot 201 is from narrow to wide. According to the principle of fluid dynamics, the front end area of ​​the annular wind slot 201 is large and the pressure is small, while the rear end area of ​​the annular wind slot 201 is small and the pressure is large. A pressure difference is formed at the front and rear ends of the annular wind slot 201. The fan assembly 22 is arranged on the outside of the annular guide member 21 and leads to the annular wind slot 201. The fan assembly 22 is mainly used to generate airflow to pass into the annular wind slot 201. In actual application, when the airflow generated by the fan assembly 22 flows into the annular wind slot 201, as shown in FIG. Fig. 9As shown, according to the principle of high pressure difference, the airflow is accelerated under the pressure difference between the front and rear ends of the annular air slot 201, and the airflow is accelerated to flow to the radial inner side of the annular guide 21 to form a high-speed airflow. The area ratio of the front and rear ends of the annular air slot 201 can be set according to the principle of static pressure balance. The airflow flows from the front end of the annular air slot 201 to the radial inner side of the annular guide 21, and flows along the inner side wall of the annular guide 21 in a direction away from the heat exchanger tube body 10. On the radial inner side of the annular guide member 21, based on the Bernoulli principle, when the velocity of the inviscid fluid increases, the sum of the pressure or potential energy of the fluid will decrease, and a high-speed airflow with a wind speed and air volume far greater than the surrounding airflow is formed on the radial inner side of the annular guide member 21. The air pressure generated by this high-speed airflow continuously introduces the air before and after the annular guide member 21 and the air around the heat exchanger tube body 10 into the radial inner side of the annular guide member 21, and after being accelerated and amplified, a stable and powerful airflow is formed, which flows along the axial direction of the annular guide member 21 in a direction away from the heat exchanger tube body 10, thereby realizing convective heat exchange with the heat exchanger tube body 10. Overall, 1 times the air intake volume can obtain an air output volume higher than 1 times, and a larger air output volume can be obtained on the basis of less energy consumption. When the fan assembly 22 is operated at low power, the convective heat exchange demand of the heat exchanger tube body 10 can be met, and the overall energy consumption of the air conditioner outdoor unit is reduced.

[0045] Further, refer to Figures 5 to 9 The annular guide member 21 includes an outer air ring 211 and an inner air ring 22, the outer air ring 211 is arranged on the radial outside of the inner air ring 212, the inner surface of the outer air ring 211 and the outer surface of the inner air ring 212 are spaced apart to form the annular wind groove 201, the front end of the annular wind groove 201 leads to the radial inside of the inner air ring 212 and is open in the direction away from the heat exchanger tube body 10, the fan assembly 22 is arranged on the radial outside of the outer air ring 211 and directly leads to the annular wind groove 201, wherein the inner diameter of the inner air ring 212 gradually increases from the side close to the heat exchanger tube body 10 to the side away from the heat exchanger tube body 10. In a specific implementation, the annular air guide 21 includes an outer air ring 211 and an inner air ring 212. The outer air ring 211 and the inner air ring 212 are both annular cylindrical structures. The inner diameter of the outer air ring 211 is greater than the outer diameter of the inner air ring 212. The outer air ring 211 is arranged radially outside the inner air ring 212. The inner surface of the outer air ring 211 and the outer surface of the inner air ring 212 are spaced apart to form an annular air groove 201, that is, the annular air groove 201 is the space between the outer air ring 211 and the inner air ring 212. Figure 8As shown, the outer air ring 211 and the inner air ring 212 are connected at the rear end of the annular air groove 201, and the two are spaced at the front end of the annular air groove 201 to form a narrow annular gap leading to the radial inner side of the inner air ring 212, and are open in the direction away from the heat exchanger tube body 10. In terms of design, the inner diameter of the inner air ring 212 gradually increases from the side close to the heat exchanger tube body 10 to the side away from the heat exchanger tube body 10. The inner diameter of the inner air ring 212 close to the heat exchanger tube body 10 is the smallest, and the inner diameter of the side away from the heat exchanger tube body 10 is the largest. The radial inner space of the inner air ring 212 gradually expands from one end close to the heat exchanger tube body 10 to the other end away from the heat exchanger tube body 10. The fan assembly 22 is arranged as a whole on the radial outer side of the outer air ring 211, and the fan assembly 22 directly leads from the radial direction of the outer air ring 211 to the annular air groove 201. In actual application, the airflow generated by the fan assembly 22 directly enters the annular wind groove 201 along the radial direction of the outer wind ring 211, and the airflow begins to flow and diffuse along the annular wind groove 201. Since the area of ​​the front end of the annular wind groove 201 is smaller than the area of ​​the rear end thereof, a pressure difference is formed, and the airflow is accelerated to flow into the radial inner side of the inner wind ring 212 through the annular wind groove 201. Since the inner diameter of the inner wind ring 212 gradually increases from the side close to the heat exchanger tube body 10 to the side away from the heat exchanger tube body 10, the space on the radial inner side of the inner wind ring 212 gradually expands in the direction away from the heat exchanger tube body 10. According to the pressure difference and the Coanda effect, The airflow velocity along the inner wall of the inner air ring 212 increases, the airflow inside the inner air ring 212 is enhanced, more air around the heat exchanger tube 10 is guided to form airflow, and the convective heat transfer of the heat exchanger tube 10 is further enhanced. A larger air volume can be obtained with less energy consumption to meet the convective heat transfer demand of the heat exchanger tube 10, thereby improving the overall energy efficiency of the air conditioner outdoor unit.

[0046] Furthermore, refer to Figures 5 to 7 as well as Figures 10 to 12 , the annular guide member 21 also includes an air inlet cylinder 23 that is interconnected on both sides. The air inlet cylinder 23 is connected to the radial outer side of the outer air ring 211 and its interior leads to the annular wind groove 201. The fan assembly 22 is arranged inside the air inlet cylinder 23. In the specific implementation, the annular guide member 21 also includes an air inlet cylinder 23. The air inlet cylinder 23 is a cylindrical structure that is interconnected on both sides. The air inlet cylinder 23 is connected to the radial outer side of the outer air ring 211 as a whole. The interior of the air inlet cylinder 23 directly leads to the interior of the annular wind groove 201. The fan assembly 22 is arranged inside the air inlet cylinder 23 as a whole. In actual application, when the fan assembly 22 is running, the air inlet cylinder 23 can guide and gather airflow, enhance the air intake effect of the fan assembly 22, reduce airflow leakage, make the airflow generated by the fan assembly 22 more stable and abundant, improve air intake efficiency, and also protect the air intake assembly to prevent external interference with the operation of the air intake assembly.

[0047] Furthermore, refer to Fig.12 The air inlet 23 is provided with a plurality of air inlets 231 distributed at intervals along its circumference, and the air inlets 231 penetrate the inner and outer sides of the air inlet 23. In a specific implementation, the air inlet 23 is provided with a plurality of air inlets 231 distributed at intervals along its circumference, and the intervals between two adjacent air inlets 231 are equal. The air inlets 231 are specifically long strip openings extending in the axial direction of the air inlet 23, and the air inlets 231 penetrate the inner and outer sides of the air inlet 23. In actual application, when the fan assembly 22 is running, the airflow enters the air inlet 23 evenly through the air inlet 231, which improves the air intake efficiency and prevents foreign matter from entering the air inlet 23 to interfere with the air intake assembly.

[0048] In one embodiment, referring to Fig.13 , the fan assembly 22 includes a rotating drive member 221 and an axial flow fan blade 222, the axial flow fan blade 222 is arranged inside the air inlet cylinder 23 along the axis of the air inlet cylinder 23, the rotating drive member 221 is fixed to the inner side of the air inlet cylinder 23 and connected to the axial flow fan blade 222, wherein the rotating drive member 221 is used to drive the axial flow fan blade 222 to rotate to generate airflow. In a specific implementation, the fan assembly 22 includes a rotating drive member 221 and an axial flow fan blade 222, the axial flow fan blade 222 is arranged inside the air inlet cylinder 23 along the axis of the air inlet cylinder 23 as a whole, the axis of the axial flow fan blade 222 is parallel to the axis of the air inlet cylinder 23, the rotating drive member 221 is specifically a motor, which is fixed to the inner side of the air inlet cylinder 23 as a whole and connected to the axial flow fan blade 222 through a driving shaft. In actual applications, the rotating driving member 221 drives the axial flow fan blades 222 to rotate, and the rotating axial flow fan blades 222 give the air an axial thrust. When the air in the axial flow fan blades 222 revolves around the axial flow fan blades 222, according to the principles of fluid mechanics, the air exerts a lift on the axial flow fan blades 222, and the axial flow fan blades 222 also give the air a reaction force of equal magnitude and opposite direction, namely, thrust. The thrust of the axial flow fan blades 222 does work on the air, thereby increasing the energy of the air. The air flows along the axial direction of the axial flow fan blades 222 to form an airflow, and the airflow is discharged into the annular wind groove 201 along the axial direction of the air inlet cylinder 23, and cooperates with the annular wind groove 201 to achieve efficient convective heat exchange.

[0049] In one embodiment, referring to Figure 3 and Fig.14The heat exchanger tube body 10 includes a plurality of heat exchange tube segments 11 arranged in parallel and spaced apart in the vertical direction, and the air conditioner outdoor unit also includes a tube body support 50, and the tube body support 50 is sequentially spaced apart along the axial direction, and the heat exchange tube segment 11 is transversely inserted into the through hole 501 to be connected with the tube body support 50. In a specific implementation, the heat exchanger tube body 10 includes a plurality of heat exchange tube segments 11 arranged in parallel and spaced apart in the vertical direction, and these heat exchange tube segments 11 are connected end to end through elbows to form a serpentine heat exchanger tube body 10, and two adjacent heat exchange tube segments 11 are kept at a certain interval to improve the heat exchange effect. The air conditioner outdoor unit also includes a tube body support 50, which is a straight rod-shaped structure, which is mainly used to support the heat exchanger tube 10. The tube body support 50 is usually arranged in parallel and at intervals. A plurality of through holes 501 passing through both sides of the tube body support 50 are arranged in sequence along the axial direction. The spacing between two adjacent through holes 501 is designed according to the spacing between the heat exchange tube segments 11. The heat exchange tube segments 11 are horizontally inserted into the through holes 501 on the tube body support 50, and each heat exchange tube segment 11 is inserted into the corresponding through hole 501. All the heat exchange tube segments 11 form a stable connection with the tube body support 50, and the heat exchange tube body 10 is more stable as a whole.

[0050] Furthermore, a rubber ring (not shown) is embedded in the inner side of the through hole 501, and the heat exchange pipe segment 11 is inserted into the rubber ring. In a specific implementation, a rubber ring is embedded in the inner side of the through hole 501, and the rubber is in a ring shape as a whole, and is mainly designed from rubber material. The heat exchange pipe segment 11 is inserted into the rubber ring, and the radial inner side of the rubber ring fits the heat exchange pipe segment 11, and the radial outer side of the rubber ring avoids fitting with the through hole 501. The rubber ring as a whole protects the heat exchange pipe segment 11, and can prevent the pipe body bracket 50 from scratching the heat exchange pipe segment 11.

[0051] In one embodiment, referring to Figures 15 to 17 The air conditioner outdoor unit also includes a housing 40, the heat exchanger tube body 10 is arranged in the housing 40, and a protective grille 60 is provided on a side of the housing 40 adjacent to the convection assembly 20 in a horizontal direction. In a specific implementation, the air conditioner outdoor unit also includes a housing 40, and the housing 40 is mainly used to protect the internal components and prevent dust from entering. The heat exchanger tube body 10 and the convection assembly 20 are both arranged inside the housing 40, and a protective grille 60 is provided on a side of the housing 40 adjacent to the convection assembly 20 in a horizontal direction. Air can pass through the protective grille 60, and the protective grille 60 improves the ventilation effect of the housing 40. The heat exchanger tube body 10 can exchange heat with the outside of the housing 40 through the protective grille 60, and the protective grille 60 can effectively prevent foreign matter from entering the inside of the housing 40.

[0052] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An air conditioner outdoor unit, characterized in that: include: A heat exchanger tube body, the outer surface of which is provided with a heat dissipation coating containing graphene; The convection component is arranged adjacent to the heat exchanger tube body, and is used for guiding the air around the heat exchanger tube body to form an airflow and flow in a direction away from the heat exchanger tube body.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The inner surface of the heat exchanger tube body is convexly provided with a toothed thread.

3. The air conditioner outdoor unit according to claim 1, characterized in that: The thickness of the heat dissipation coating in the radial direction of the heat exchanger tube body is 10 μm-20 μm.

4. The air conditioner outdoor unit according to any one of claims 1 to 3, characterized in that: The convection component includes an annular guide member and a fan assembly, wherein the annular guide member is arranged adjacent to the heat exchanger tube body, an annular wind groove is formed inside the annular guide member, a front end of the annular wind groove is close to the heat exchanger tube body and leads to the radial inner side of the annular guide member, and a rear end is away from the heat exchanger tube body, an area of ​​the front end of the annular wind groove is larger than an area of ​​the rear end to form a pressure difference, and the fan assembly is arranged on the outer side of the annular guide member and leads to the annular wind groove, wherein the fan assembly is used to generate airflow into the annular wind groove, so that the airflow is accelerated to flow toward the radial inner side of the annular guide member and flows in a direction away from the heat exchanger tube body according to the pressure difference in the annular wind groove.

5. The air conditioner outdoor unit according to claim 4, characterized in that: The annular air guide comprises an outer air ring and an inner air ring, the outer air ring is arranged on the radial outside of the inner air ring, the inner surface of the outer air ring and the outer surface of the inner air ring are spaced apart to form the annular air groove, the front end of the annular air groove leads to the radial inside of the inner air ring and is open in the direction away from the heat exchanger tube body, the fan assembly is arranged on the radial outside of the outer air ring and leads directly into the annular air groove, wherein the inner diameter of the inner air ring gradually increases from the side close to the heat exchanger tube body to the side away from the heat exchanger tube body.

6. The air conditioner outdoor unit according to claim 5, characterized in that: The annular guide also includes an air inlet cylinder with inner and outer sides communicating with each other. The air inlet cylinder is connected to the radial outer side of the outer air ring and its interior leads to the annular wind groove. The fan assembly is arranged inside the air inlet cylinder.

7. The air conditioner outdoor unit according to claim 6, characterized in that: The air inlet cylinder is provided with a plurality of air inlets distributed at intervals along its circumference, and the air inlets penetrate the inner and outer sides of the air inlet cylinder.

8. The air conditioner outdoor unit according to claim 6, characterized in that: The fan assembly includes a rotating drive component and axial flow fan blades, wherein the axial flow fan blades are arranged inside the air inlet cylinder along the axis of the air inlet cylinder, and the rotating drive component is fixed to the inner side of the air inlet cylinder and connected to the axial flow fan blades, wherein the rotating drive component is used to drive the axial flow fan blades to rotate to generate airflow.

9. The air conditioner outdoor unit according to any one of claims 1 to 3, characterized in that: The heat exchanger tube body includes a plurality of heat exchange tube segments arranged in parallel and spaced apart in the vertical direction. The air conditioner outdoor unit also includes a tube body bracket. The tube body bracket is provided with a plurality of through holes spaced apart in sequence along the axial direction. The heat exchange tube segments are laterally inserted into the through holes to be connected to the tube body bracket.

10. The air conditioner outdoor unit according to claim 9, characterized in that: A rubber ring is embedded inside the through hole, and the heat exchange pipe section is passed through the rubber ring.

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