Air guide ring and air conditioner outdoor unit

Abstract

The embodiment of the invention relates to the technical field of household appliances, in particular to an air guide ring and an air conditioner outdoor unit. The air guide ring comprises a connecting part used for being connected to an air outlet of an air conditioner outdoor unit; the air guide ring body is connected to the connecting part; in the axis direction of the connecting part, the outer contour of the side, away from the connecting part, of the air guide ring body forms various heights. According to the air guide ring, the air guide ring body presents molded surfaces with various heights at different angles, so that the air flow at various angles in the shell of the air conditioner outdoor unit can be pertinently dredged, and the air guide efficiency is improved. And the non-uniform molded surface of the air guide ring enables the interaction between a blade tip falling vortex and the air guide ring to be converted from a uniform effect to a non-uniform effect, so that the noise frequency of the blade tip falling vortex is changed, the aerodynamic noise of the impeller is effectively weakened, the noise level during operation of the air conditioner outdoor unit is reduced, and the user experience is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of household appliances, and in particular to an air guide ring and an air conditioner outdoor unit. Background Art

[0002] In current technology, the air conditioner outdoor unit is usually equipped with an air guide ring. The air flow entering the air guide ring comes from all directions of the air conditioner outdoor unit case. However, each part of the air guide ring guides the air flow in the same direction, so it is impossible to guide the air flow at different angles in a targeted manner, resulting in low air guide efficiency. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides an air guide ring.

[0005] A second aspect of the present invention provides an air conditioner outdoor unit.

[0006] In view of this, according to an embodiment of the first aspect of the present application, an air guide ring is provided, comprising:

[0007] A connecting portion, used to connect to the air outlet of the air conditioner outdoor unit;

[0008] The air guide ring body is connected to the above-mentioned connecting part;

[0009] Wherein, in the axial direction of the connecting portion, the outer contour of the side of the air guide ring body away from the connecting portion is formed with various heights.

[0010] In a feasible implementation manner, the ratio of the volume of the first cutting space to the volume of the second cutting space is greater than or equal to 0.5.

[0011] In a feasible embodiment, in the axial direction of the connecting portion, a cross section of an outer contour of a side of the air guide ring body away from the connecting portion at any angle in the circumferential direction of the air guide ring body satisfies a double twisted line equation.

[0012] In a feasible implementation manner, the value range of the profile parameter of the above-mentioned double twisted line equation is 0.01 times to 0.3 times the inner diameter size of the above-mentioned air guide ring body.

[0013] In a feasible embodiment, in the diameter direction of the above-mentioned connecting portion, the above-mentioned surface parameters continuously change along the circumference of the above-mentioned connecting portion, and the above-mentioned surface parameters are periodic functions of the circumferential angle of the above-mentioned connecting portion, and the above-mentioned periodic function is a sine periodic function or a cosine periodic function, and the period of the above-mentioned periodic function is π / 2.

[0014] In a feasible implementation manner, in the diameter direction of the connecting portion, the distance from the outer contour of the air guide ring body to the center of the air guide ring is the largest at a circumferential angle of 45° of the connecting portion;

[0015] In the axial direction of the connecting portion, the distance from the outer contour of the air guide ring body to the connecting portion is the largest when the circumferential angle of the connecting portion is 45°.

[0016] In a feasible implementation manner, a cavity is formed inside the air guide ring body.

[0017] In a feasible implementation manner, an avoidance pit is formed at the outer contour of the air guide ring body.

[0018] In a feasible implementation manner, the air guide ring is made of a porous medium material or a flexible material.

[0019] In a feasible implementation manner, a flange is formed on a side of the connection portion away from the air guide ring body.

[0020] According to an embodiment of the second aspect of the present application, an air conditioner outdoor unit is provided, comprising:

[0021] An air guide ring as described in any one of the above technical solutions;

[0022] A shell, wherein the shell is provided with an air outlet, the connecting portion is connected to the air outlet, and a partition is provided in the shell, and the partition separates the shell into a first accommodation space and a second accommodation space;

[0023] A motor bracket is arranged in the first accommodation space;

[0024] A fan assembly is arranged on the motor bracket;

[0025] The compressor is arranged in the second accommodating space.

[0026] Compared with the prior art, the present invention at least includes the following beneficial effects: the air guide ring provided in the embodiment of the present application is provided with a connecting portion and an air guide ring body. Among them, the connecting portion is connected to the air guide ring body, and the connecting portion is connected to the air outlet of the air conditioner outdoor unit, and the air flow in the air conditioner outdoor unit housing is guided to the air outlet through the air guide ring body. And along the axial direction of the connecting portion, the outer contour of the air guide ring body on the side away from the connecting portion is formed with multiple heights. As a result, the air guide ring body presents a profile of multiple heights at different angles, so that the air flow at multiple angles in the housing of the air conditioner outdoor unit can be guided in a targeted manner, thereby improving the air guide efficiency. And when the air conditioner outdoor unit is running, the impeller rotates, and the interaction between the tip shedding vortex of the impeller and the air guide ring will generate aerodynamic noise. The uneven profile of the air guide ring of the present application makes the interaction between the tip shedding vortex and the air guide ring transform from uniform action to non-uniform action, thereby changing the noise frequency of the tip shedding vortex, effectively weakening the aerodynamic noise of the impeller, reducing the noise level when the air conditioner outdoor unit is running, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present application. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0028] In the attached picture:

[0029] Figure 1 A schematic structural diagram of an air guide ring in one direction of an embodiment provided in the present application;

[0030] Figure 2 for Figure 1 A schematic structural diagram of the air guide ring in another direction shown;

[0031] Figure 3 A schematic structural diagram of an air guide ring in one direction of another embodiment provided in the present application;

[0032] Figure 4 for Figure 3 A schematic structural diagram of the air guide ring in another direction shown;

[0033] Figure 5 It is a schematic diagram of the curve generated according to the double twist line equation;

[0034] Figure 6 A comparison diagram of fan speed and air volume curves of an air conditioner outdoor unit equipped with an existing air guide ring and an air conditioner outdoor unit equipped with an air guide ring provided in an embodiment of the present application;

[0035] Figure 7A comparison diagram of the fan air volume and power curves of an air conditioner outdoor unit equipped with an existing air guide ring and an air conditioner outdoor unit equipped with an air guide ring provided in an embodiment of the present application;

[0036] Figure 8 A comparison chart of the noise reduction effects of an existing air guide ring and an air guide ring provided in an embodiment of the present application;

[0037] Fig. 9 A schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0038] Fig.10 A cross-sectional schematic diagram of an air conditioner outdoor unit at one angle according to an embodiment of the present application;

[0039] Fig.11 A cross-sectional schematic diagram of an air-conditioning outdoor unit at another angle according to an embodiment of the present application.

[0040] in, Figures 1 to 11 The corresponding relationship between the reference numerals and the component names is as follows:

[0041] 100 air guide ring, 200 air conditioner outdoor unit;

[0042] 110 connection part, 111 flange, 120 air guide ring body, 121 avoidance pit, 210 shell, 220 partition,

[0043] 230 motor bracket, 240 fan assembly, 250 heat exchanger. DETAILED DESCRIPTION

[0044] In order to better understand the above-mentioned technical scheme, the technical scheme of the embodiments of the present application is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical scheme of the embodiments of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments may be combined with each other.

[0045] like Figures 1 to 4 As shown, according to the first aspect of the embodiment of the present application, an air guide ring 100 is proposed, including: a connecting portion 110, used to connect to the air outlet of the above-mentioned air-conditioning outdoor unit 200; an air guide ring body 120, connected to the above-mentioned connecting portion 110; wherein, in the axial direction of the above-mentioned connecting portion 110, the outer contour of the side of the above-mentioned air guide ring body 120 away from the above-mentioned connecting portion 110 is formed with multiple heights.

[0046] In the prior art, the air guide ring 100 of the air conditioner outdoor unit is a uniform circular ring, and the shape of each cross section along its circumferential direction is exactly the same, and the shell 210 of the air conditioner outdoor unit 200 is a rectangular parallelepiped. Since the fillets of the air guide ring 100 in all directions are exactly the same, it is impossible to specifically guide the airflow at different angles.

[0047] It can be understood that the air guide ring 100 provided in the embodiment of the present application is provided with a connecting portion 110 and an air guide ring body 120. Among them, the connecting portion 110 is connected to the air guide ring body 120, and the connecting portion 110 is connected to the air outlet of the air conditioner outdoor unit 200, and the air flow in the housing 210 of the air conditioner outdoor unit 200 is guided to the air outlet through the air guide ring body 120. And along the axial direction of the connecting portion 110, the outer contour of the side of the air guide ring body 120 away from the connecting portion 110 is formed with multiple heights. As a result, the air guide ring body 120 presents profiles of multiple heights at different angles, so that the air flow at multiple angles in the housing 210 of the air conditioner outdoor unit 200 can be guided in a targeted manner, thereby improving the air guide efficiency. Furthermore, when the air-conditioning outdoor unit 200 is running, the impeller rotates, and the interaction between the blade tip vortex of the impeller and the air guide ring 100 generates aerodynamic noise. The uneven surface of the air guide ring 100 of the present application transforms the interaction between the blade tip vortex and the air guide ring 100 from a uniform action to a non-uniform action, thereby changing the noise frequency of the blade tip vortex, effectively weakening the aerodynamic noise of the impeller, reducing the noise level during the operation of the air-conditioning outdoor unit 200, and improving the user experience.

[0048] It should be noted that the cross-sections of the air guide ring body 120 at different angles are smooth and continuous, and the profiles at different angles can be continuously changed, so different profiles of the air guide ring body 120 can be presented at different angles. Thus, targeted guidance of airflows at various angles in the housing 210 of the air conditioner outdoor unit 200 can be achieved, thereby improving the air guiding efficiency.

[0049] For example, the air guide ring body 120 and the connecting portion 110 can be an integrated structure to ensure the overall structural strength of the air guide ring 100, reduce assembly steps, and improve processing efficiency. The air guide ring 100 can be processed by mechanical processing or 3D printing, which can be determined according to the shape of the air guide ring body 120 and the actual processing conditions.

[0050] For example, the air guide ring body 120 may adopt a segmented structure or an open annular structure, which may be determined according to actual design conditions. The air guide ring 100 may be made of metal materials, plastic materials, and composite materials. The material of the air guide ring 100 may be determined according to actual design conditions.

[0051] In some examples, such as Figures 1 to 8As shown, in the axial direction of the connecting portion 110 , the outer contour of the side of the air guide ring body 120 away from the connecting portion 110 satisfies the double twisted line equation at any angle in the circumferential direction of the air guide ring body 120 .

[0052] It can be understood that, in the axial direction of the connecting portion 110, the projection of any angle of the outer contour of the side of the air guide ring body 120 away from the connecting portion 110 satisfies the double twist line equation. This arrangement can ensure that the airflow enters the interior of the air guide ring body 120 from all directions more smoothly with lower resistance. Specifically, the double twist line equation is in, is the direction angle, a is the surface parameter of the double twist line, which is used to control the size of the curve, and r is the orientation in polar coordinates. The surface of the air guide ring body 120 satisfies the double twist line equation. Since the second-order derivative of the double twist line is continuous in the entire curve range, the curve has good smoothness, thereby ensuring that the cross-sections of the air guide ring body 120 at different angles are smooth and continuous, and the surfaces at different angles can be continuously changed. It can be achieved that when the airflow passes through the double twist line surface of the air guide ring body 120, flow separation will not easily occur, and the flow resistance is smaller, thereby ensuring that the airflow at various angles in the shell 210 of the air conditioner outdoor unit 200 is targeted and the air guide efficiency is improved.

[0053] For example, Figure 5 As shown, it is a schematic diagram of the curve generated by the double-twist line equation when the profile parameter a of the double-twist line is selected as 20 in the double-twist line equation.

[0054] For example, Figure 6 As shown, it can be seen that the fan speed and fan air volume of the air conditioner outdoor unit 200 using the uniform air guide ring 100 of the prior art and the air guide ring 100 in the embodiment of the present application with a part of the profile satisfying the double twisted line equation are compared. Under the same fan speed, the fan air volume is increased by 5%. Among them, RPM is revolutions per minute, and CMH is cubic meters per hour.

[0055] For example, Figure 7 As shown, it can be seen that the air volume and power of the air conditioner outdoor unit 200 using the uniform air guide ring 100 of the prior art and the air guide ring 100 having a part of the profile satisfying the double twisted line equation in the embodiment of the present application are compared. Under the condition of the same air volume, the power of the fan is reduced by 5%. Among them, RPM is revolutions per minute and W is watt.

[0056] For example, Figure 8As shown, it can be seen that the noise reduction effect of the air conditioner outdoor unit 200 using the uniform air guide ring 100 of the prior art and the air guide ring 100 having a partial profile satisfying the double twisted line equation in the embodiment of the present application is compared. Under the condition of the same fan air volume, the noise reduction effect can reach 1 to 2dB.

[0057] In some examples, the value range of the profile parameter of the double twisted line equation is 0.01 times to 0.3 times the inner diameter of the air guide ring body 120 .

[0058] It is understandable that the value range of the profile parameter of the double twisted line equation can be determined by the inner diameter size of the air guide ring body 120, so as to ensure that the profile of the air guide ring body 120 satisfies the double twisted line linearity, thereby ensuring that the airflow enters the air guide ring body 120 at different angles and has smoother flow guidance. Specifically, the value range of the profile parameter of the double twisted line equation is 0.01 times to 0.3 times the inner diameter size of the air guide ring body 120.

[0059] In some examples, in the diameter direction of the connecting portion 110, the profile parameters continuously change along the circumference of the connecting portion 110, and the profile parameters are periodic functions of the circumferential angle of the connecting portion 110, and the periodic function is a sine periodic function or a cosine periodic function, and the period of the periodic function is π / 2.

[0060] It is understandable that in the air conditioner outdoor unit 200, the airflow enters the air guide ring 100 from the heat exchanger 250, which can be regarded as a flow process of the airflow from square to circular. In order to ensure smoother airflow at different angles, the values ​​of the profile parameters of the double twisted line equation can be different at different angles. Specifically, the profile parameters of the double twisted line equation can change periodically and continuously along the circumference of the connecting portion 110, and the value range satisfies 0.01 to 0.3 times the inner diameter of the air guide ring body 120.

[0061] Exemplarily, when the periodic function is a cosine periodic function, the expression of the periodic function is:

[0062] a=C1dcos(C2β)+C3d

[0063] Among them, C1, C2, and C3 are constants, wherein the value range of C1 and C3 is 0.01 to 0.3, and the value of C2 can be a positive integer. β is the circumferential angle, and the value range is 0° to 360°. In this way, the surface parameters of the hungry are periodically and continuously changed with the circumferential angle as a variable, thereby ensuring that the surface of the air guide ring body 120 remains smooth and continuously changes along the circumferential direction, so that the airflow can pass through the air guide ring 100 smoothly without generating additional resistance, thereby improving the air guide efficiency.

[0064] It can be understood that, in combination with the above-mentioned profile of the air guide ring body 120 away from the connecting portion 110 satisfying the double twisted line equation, the profile design process of the air guide ring body 120 is as follows:

[0065] Step S110: Determine the variation law of the profile parameters along the circumferential direction and determine the value range of the profile parameters according to the inner diameter size of the air guide ring body 120, so as to determine the double twisted line equation satisfied by the air guide ring body 120, and the expression of the double twisted line equation in polar coordinates is: Among them, the profile parameter values ​​corresponding to different direction angles are different.

[0066] Step S120: Select multiple direction angles to determine the points on the double twist line, and the profile of the end of the air guide ring body 120 away from the connecting part 110 in the axial direction of the connecting part 110 can be determined according to the multiple points. Exemplarily, the number of selected points is greater than or equal to 8. When 8 points are selected, a point can be selected every 45°. Or 24 points can be selected, and a point can be selected every 15°.

[0067] Step S130: convert the polar coordinates of the selected multiple angles of the contour lines into coordinates of the Cartesian coordinate system, and merge the contour lines of the multiple angles into a smooth surface in the surface generation software to form a complete contour of the end of the air guide ring body 120 away from the connecting portion 110. Specifically, the point expression of the polar coordinates converted into the Cartesian coordinates is:

[0068] x=rcosθ,y=rsinθ

[0069] Where x is the horizontal coordinate of the point in the Cartesian coordinate system, and y is the vertical coordinate of the point in the Cartesian coordinate system, so as to facilitate input into the surface generation software.

[0070] In some examples, in the diameter direction of the above-mentioned connecting portion 110, the distance from the outer contour of the above-mentioned air guide ring body 120 to the center of the above-mentioned air guide ring 100 is the largest when the circumferential angle of the above-mentioned connecting portion 110 is 45°; in the axial direction of the above-mentioned connecting portion 110, the distance from the outer contour of the above-mentioned air guide ring body 120 to the above-mentioned connecting portion 110 is the largest when the circumferential angle of the above-mentioned connecting portion 110 is 45°.

[0071] It is understandable that the airflow enters the air guide ring 100 from the heat exchanger 250, which can be regarded as a flow process of the airflow from a square to a circle. Due to the internal space of the air conditioner outdoor unit 200, the installation position of the air guide ring 100 and the area occupied by the air guide ring 100, when there is part of the airflow passing through the air guide ring 100 in the cross-sectional direction at the circumferential angle of the connecting portion 110 of 45°, the airflow will bypass the profile of the air guide ring 100 away from the connecting portion 110 and directly enter the annular hollow of the air guide ring body 120. The larger the inner diameter of the air guide ring 100, the less likely the airflow is to separate when the airflow passes through the air guide ring 100. Therefore, in the diameter direction of the connecting portion 110, the profile of the air guide ring body 120 away from the connecting portion 110 at the circumferential angle of the connecting portion 110 of 45°, on the premise of satisfying the double twisted line shape, the value of the profile parameter is also the largest, thereby ensuring that the distance dimension from the outer contour of the air guide ring body 120 to the center of the air guide ring 100 is the largest. In the axial direction of the connecting portion 110, the profile of the air guide ring body 120 at the circumferential angle of the connecting portion 110 of 45° away from the connecting portion 110 has the largest profile parameter value under the premise of satisfying the double twist line shape, thereby ensuring that the distance dimension from the outer contour of the air guide ring body 120 to the connecting portion 110 is the largest. This further improves the efficiency of the air guide ring 100 in guiding the airflow.

[0072] In some examples, a cavity is formed inside the air guide ring body 120 .

[0073] It can be understood that the air guide ring body 120 is an annular structure as a whole, and the air guide ring body 120 guides the airflow in the housing 210 of the air conditioner outdoor unit 200 to the hollow position of the annular structure to smoothly transport it to the external environment of the air conditioner outdoor unit 200. At the same time, in the axial direction of the connecting portion 110, a cavity is formed in the internal cross section of the annular structure. This reduces the overall weight of the air guide ring 100, saves materials and costs, and reduces the overall weight of the air conditioner outdoor unit 200, making it easier to transport.

[0074] In some examples, such as Figure 3 and Figure 4 As shown, an avoidance pit 121 is formed at the outer contour of the air guide ring body 120 .

[0075] It is understandable that due to the limitation of the internal space size of the shell 210 of the air conditioner outdoor unit 200, the air guide ring 100 may interfere with the shell 210 of the air conditioner outdoor unit 200. In order to avoid this situation, an avoidance pit 121 can be formed at the place where the outer contour of the air guide ring body 120 can interfere, thereby reducing the size of the interference point between the air guide ring body 120 and the air conditioner outdoor unit 200, so that the air guide ring 100 and the shell 210 of the air conditioner outdoor unit 200 can be better assembled, and the setting of the avoidance pit 121 will not reduce the diameter size of the fan impeller and the inner diameter size of the air guide ring 100 while avoiding interference, thereby ensuring the air flow rate and smoothness of air outlet.

[0076] It should be noted that the surface of the air guide ring body 120 that may interfere can be cut according to the internal structure of the shell 210 of the air conditioner outdoor unit 200 to form an avoidance pit 121, and the cutting process should try to ensure the smoothness of the outer contour surface of the air guide ring body 120. Thereby ensuring that the cross-sections of the air guide ring body 120 at different angles are smooth and continuous, and the surfaces at different angles can be continuously changed. It can be achieved that when the airflow passes through the double twisted line surface of the air guide ring body 120, flow separation will not easily occur, and the flow resistance is smaller, thereby ensuring that the airflow at various angles in the shell 210 of the air conditioner outdoor unit 200 is targeted and the air guide efficiency is improved.

[0077] In some examples, the air guide ring 100 is made of a porous medium material or a flexible material.

[0078] It is understandable that the air guide ring 100 can be made of a material with a porous medium. When the aerodynamic noise generated when the air conditioner outdoor unit 200 is running passes through the air guide ring 100, it will act on the porous medium, and the porous medium will vibrate, thereby absorbing part of the aerodynamic noise energy and reducing the aerodynamic noise. The air guide ring 100 can also be made of a material with a certain flexibility. When the aerodynamic noise generated when the air conditioner outdoor unit 200 is running passes through the air guide ring 100, the flexible material will vibrate, thereby absorbing part of the aerodynamic noise energy and reducing the aerodynamic noise. The material with a porous medium and the flexible material have no obvious effect on the aerodynamic performance of the air guide ring 100, ensuring the performance of the air guide ring 100 in guiding the airflow and improving reliability.

[0079] In some examples, such as Figures 1 to 4 As shown, a flange 111 is formed on a side of the connection portion 110 away from the air guide ring body 120 .

[0080] It is understandable that a flange 111 is formed on the side of the connection portion 110 away from the air guide ring body 120. By providing the flange 111, a larger connection surface is provided for the air guide ring 100, which facilitates the installation of the air guide ring 100 on the housing 210 of the air conditioner outdoor unit 200. Exemplarily, both the flange 111 and the housing 210 of the air conditioner outdoor unit 200 are provided with threaded holes, and the flange 111 can be connected to the housing 210 of the air conditioner outdoor unit 200 by threaded connection, thereby ensuring the connection stability between the air guide ring 100 and the housing 210 of the air conditioner outdoor unit 200.

[0081] It is understandable that, in the prior art, the air guide ring 100 of the air conditioner outdoor unit is a uniform circular ring, and the shape of each cross section along its circumferential direction is exactly the same, and the fillets of the air guide ring 100 in all directions are exactly the same, so it is impossible to guide the airflow at different angles in a targeted manner. As a result, it is impossible to guide the airflow in the area outside the flange 111, and there is an obvious low-speed flow area at the flange 111, which affects the smooth flow of the internal airflow of the air conditioner outdoor unit 200. In the present application, since the cross-sections of the air guide ring body 120 at different angles are smooth and continuous, and the profiles at different angles can be continuously changed, different profiles of the air guide ring body 120 can be presented at different angles. Thereby, it is possible to guide the airflow in any direction of 360° in the shell 210 of the air conditioner outdoor unit 200, and it can also have a good guiding effect on the airflow at the back of the air guide ring 100 and the flange 111, thereby improving the air guiding efficiency.

[0082] like Figures 9 to 11 As shown, according to the second embodiment of the present application, an air-conditioning outdoor unit 200 is proposed, comprising: an air guide ring 100 as described in any one of the above technical solutions; a shell 210, the shell 210 is provided with an air outlet, the connecting portion 110 is connected to the air outlet, a partition 220 is arranged in the shell 210, and the partition 220 separates the shell 210 into a first accommodating space and a second accommodating space; a motor bracket 230, which is arranged in the first accommodating space; a fan assembly 240, which is arranged in the motor bracket 230; and a compressor, which is arranged in the second accommodating space.

[0083] It is understandable that the air conditioner outdoor unit 200 is provided with the air guide ring 100 described in any one of the above technical solutions, and therefore has all the beneficial effects of the above air guide ring 100, which will not be repeated here. The air conditioner outdoor unit 200 is also provided with a housing 210, a motor bracket 230, a fan assembly 240 and a compressor. Among them, the housing 210 is provided with an air outlet, and the connecting portion 110 can be connected to the air outlet through a flange 111, so that the air guide ring 100 can guide the airflow at any angle in the housing 210 to the air outlet. The housing 210 is also provided with a partition 220, and the housing 210 is separated into a first accommodating space and a second accommodating space by the partition 220. Among them, the motor bracket 230 is arranged in the first accommodating space, and the motor of the fan assembly 240 is arranged in the motor bracket 230 to provide a reliable working environment for the motor. The fan assembly 240 is provided with an impeller, and the impeller is connected to the output shaft of the motor, so that the motor can drive the impeller to rotate. The compressor is arranged in the second storage space to ensure that the compressor has an independent working space to avoid interference, and to ensure that the air conditioner outdoor unit 200 can work continuously and stably. The air conditioner outdoor unit 200 is also provided with a heat exchanger 250, which is connected to the housing 210. The heat exchanger 250 uses the temperature difference between indoor and outdoor to exchange heat between the gases on both sides of the indoor and outdoor, thereby reducing the indoor temperature. The air guide ring 100 proposed in the present application can ensure smooth airflow in the first storage space and the partition 220, improve the airflow diversion effect in the first storage space, and improve the working efficiency of the fan assembly 240.

[0084] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0085] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0086] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air guide ring, characterized in that: include: A connecting portion, used to connect to the air outlet of the air conditioner outdoor unit; An air guide ring body connected to the connecting portion; Wherein, in the axial direction of the connecting portion, the outer contour of the side of the air guide ring body away from the connecting portion is formed with various heights.

2. The air guide ring according to claim 1, characterized in that: In the axial direction of the connecting portion, a cross section of an outer contour of a side of the air guide ring body away from the connecting portion at any angle in the circumferential direction of the air guide ring body satisfies a double twisted line equation.

3. The air guide ring according to claim 2, characterized in that: The value range of the profile parameter of the double twisted line equation is 0.01 to 0.3 times the inner diameter of the air guide ring body.

4. The air guide ring according to claim 3, characterized in that: In the diameter direction of the connecting portion, the profile parameter changes continuously along the circumference of the connecting portion, and the profile parameter is a periodic function of the circumferential angle of the connecting portion, and the periodic function is a sine periodic function or a cosine periodic function, and the period of the periodic function is π / 2.

5. The air guide ring according to claim 4, characterized in that: In the diameter direction of the connecting portion, the distance from the outer contour of the air guide ring body to the center of the air guide ring is the largest at a circumferential angle of 45° of the connecting portion; In the axial direction of the connecting portion, the distance from the outer contour of the air guide ring body to the connecting portion is the largest when the circumferential angle of the connecting portion is 45°.

6. The air guide ring according to any one of claims 1 to 5, characterized in that: A cavity is formed inside the air guide ring body.

7. The air guide ring according to any one of claims 1 to 5, characterized in that: An avoidance pit is formed at the outer contour of the air guide ring body.

8. The air guide ring according to any one of claims 1 to 5, characterized in that: The air guide ring is made of a porous medium material or a flexible material.

9. The air guide ring according to any one of claims 1 to 5, characterized in that: A flange is formed on a side of the connection portion away from the air guide ring body.

10. An air conditioner outdoor unit, characterized in that: include: The air guide ring according to any one of claims 1 to 9; A shell, wherein the shell is provided with an air outlet, the connecting portion is connected to the air outlet, and a partition is provided in the shell, and the partition separates the shell into a first accommodation space and a second accommodation space; A motor bracket, arranged in the first accommodation space; A fan assembly is arranged on the motor bracket; The compressor is arranged in the second accommodation space.

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