Guide ring, fan assembly and air conditioner having the same

Abstract

The present invention provides a guide ring and a fan assembly and an air conditioner having the same, and relates to the field of air purification. The guide ring includes a cylindrical body, the body having a first end and a second end opposite to each other, the first end of the body being provided with a guide portion along its circumferential edge, the guide portion and the body being at an angle to each other; the second end of the body being connected to an outlet portion, the diameter of which gradually increases from the first end of the body to the outlet portion. The present invention enables the guide portion to convert the radial air intake from the side into an axial air guide when air enters from the side of the air conditioner, so that the radial air intake can also enter the fan assembly as much as possible, thereby increasing the air intake volume. At the same time, an outlet portion is provided at the second end of the guide ring, and the outlet portion is in an outwardly expanding manner relative to the first end of the guide ring, so that the air intake can be discharged as much as possible after passing through the guide ring, thereby improving the usability and comfort of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the field of air purification, and in particular to a guide ring and a fan assembly and an air conditioner having the guide ring. Background Art

[0002] Existing air conditioners often have a guide ring installed at the air inlet end of their centrifugal fans to accelerate the airflow within the ring, achieving effective air purification. In existing air conditioners, the guide ring is designed as a smooth cylindrical structure. However, sometimes the air entering the fan does not entirely enter from the top of the air conditioner. When the air enters from other directions, the existing guide ring cannot effectively guarantee the air intake or air output of the air conditioner, affecting the usability and comfort of the air conditioner. Summary of the Invention

[0003] In order to solve the technical problem of low air inlet or outlet volume of the guide ring in the prior art, the main purpose of the present invention is to provide a guide ring that increases the air inlet or outlet volume of the guide ring and a fan assembly and air conditioner having the same.

[0004] In the first aspect, an embodiment of the present invention provides a guide ring, comprising: a cylindrical body, the body having a first end and a second end opposite to each other, the first end of the body being provided with a guide portion along its circumferential edge, the guide portion and the body being at an angle to each other; the second end of the body being connected to a flow outlet portion, the diameter gradually increasing from the first end of the body to the flow outlet portion.

[0005] Furthermore, in a preferred embodiment of the present invention, the included angle β between the guide portion and the axis of the body is 10°<β<55°.

[0006] Furthermore, in a preferred embodiment of the present invention, the included angle α between the outflow portion and the axis of the body is 8°<α<20°.

[0007] Furthermore, in a preferred embodiment of the present invention, the guide portion is connected to the body via a guide arc surface.

[0008] Furthermore, in a preferred embodiment of the present invention, a fixing portion for fixing the body is provided on the outer wall of the body.

[0009] In a second aspect, an embodiment of the present invention provides a fan assembly, comprising a fan blade and a guide ring as described above, wherein the guide ring is sleeved on the outer side of the fan blade.

[0010] Furthermore, in a preferred embodiment of the present invention, the axial length of the guide ring is H, and the axial length of the fan blade is L, wherein 1 / 2*L≤H≤4 / 5*L.

[0011] In a third aspect, an embodiment of the present invention provides an air conditioner comprising any of the above-mentioned fan components.

[0012] Furthermore, in a preferred embodiment of the present invention, the fan assembly is arranged in a shell, and the guide ring is fixed to the inner wall of the shell; an annular heat exchanger and a motor are arranged in the shell, and the fan blades are connected to the motor; and an air duct is formed inside the shell.

[0013] Furthermore, in a preferred embodiment of the present invention, an air inlet is provided on the circumferential side wall of the shell, and an air outlet is provided on the axial side wall of the shell, and the air outlet is opposite to the second end of the guide ring.

[0014] An embodiment of the present invention provides a guide ring, a fan assembly, and an air conditioner having the same. A guide portion is provided at the first end of the guide ring. When air enters from the side of the air conditioner, the guide portion converts the radial airflow from the side into an axial airflow guide, allowing as much radial airflow as possible to enter the fan assembly, thereby increasing the air intake volume. Simultaneously, an outlet portion is provided at the second end of the guide ring. The outlet portion expands outward relative to the first end of the guide ring, allowing as much airflow as possible to exit the guide ring after passing through the guide ring, thereby improving the usability and comfort of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a structural diagram of a guide ring provided by one embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of wind direction of an air conditioner provided by one embodiment of the present invention;

[0018] Figure 3 is a cross-sectional view of an air conditioner provided by one embodiment of the present invention;

[0019] Figure 4 This is a partial schematic diagram of the guide ring of an air conditioner provided by one embodiment of the present invention;

[0020] Figure 5 It is a simulation streamline diagram under the condition of guide ring in the prior art;

[0021] Figure 6 This is a simulation streamline diagram of the guide ring provided by an embodiment of the present invention.

[0022] Reference numerals:

[0023] 1. Guide ring, 11. Main body, 12. Guide part, 13. Outlet part, 14. Guide arc surface, 15. Fixed part, 2. Fan blade, 3. Shell, 31. Air inlet, 32. Air outlet, 4. Heat exchanger, 5. Motor, 6. Suspension rod. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] like Figure 2-4 As shown, an embodiment of the present invention provides an air conditioner, comprising a fan assembly, a heat exchanger 4 and a motor 5 arranged in an annular manner, arranged in a housing 3. The fan blades 2 in the fan assembly are connected to the motor 5, and the guide ring 1 is sleeved on the outer circumference of the fan blades 2. The guide ring 1 is fixed to the inner wall of the housing 3 (specifically, the inner wall where the air outlet 32 is arranged). In this embodiment, as shown in FIG. Figure 1 As shown, the outer wall of the body 11 of the guide ring 1 is provided with a fixing portion 15 for fixing the body 11. The fixing portion 15 is provided with a fixing hole. The fixing portion 15 of the guide ring 1 is fixed to the inner wall of the housing 3 using fixing members such as screws. The air conditioner provided in this embodiment of the present invention is a kitchen air conditioner, and is hoisted by a suspension rod 6 provided in an annular manner on the top of the housing 3.

[0026] Among them, the fan assembly in the air conditioner adopts a mixed flow fan, which is connected to the motor 5 and drives the fan blades 2 to rotate. The interior of the housing 3 forms an air duct. In this embodiment, Figure 2-3 As shown, an air inlet 31 is provided on the circumferential side wall of the housing 3. The air inlet 31 can be an air inlet grille arranged in an annular manner along the side wall of the housing 3. An air outlet 32 is provided on the axial side wall of the housing 3. The air outlet 32 is opposite to the second end of the guide ring 1. The airflow passes through the annular heat exchanger 4 from the air inlet grille and enters the air duct inside the housing 3. The airflow then passes through the guide ring 1 and the fan blades 2 and is discharged from the air outlet 32. Figure 2 The direction of air circulation is shown in the figure.

[0027] Since the air inlet form of the air conditioner is annular, the air flow enters the fan blade 2 from the circumferential side of the shell 3, and not all the air in the air duct enters the fan blade 2 from the top. Therefore, in order to achieve the goal of guiding the lateral air into the fan blade 2 for ventilation as much as possible, an improved guide ring structure is provided in the embodiment of the present invention.

[0028] like Figure 1 As shown, an air guide ring provided by an embodiment of the present invention comprises: a cylindrical body 11 having a first end and a second end. The first end of the body 11 is provided with an air guide portion 12 along its circumferential edge, the air guide portion 12 being angled relative to the body 11. The second end of the body 11 is connected to an outlet portion 13, the diameter of which gradually increases from the first end of the body 11 to the outlet portion 13. The air guide ring 1 provided by an embodiment of the present invention has the air guide portion 12 provided at the first end of the air guide ring 1. When air enters from the side of the air conditioner, the air guide portion 12 can convert the radial airflow into axial airflow, allowing the radial airflow to enter the fan assembly as much as possible, thereby increasing the air intake volume. The outlet portion 13 is also provided at the second end of the air guide ring 1. The outlet portion 13 is arranged outwardly relative to the first end of the air guide ring 1, allowing the incoming air to exit the air guide ring 1 as much as possible, thereby improving the usability and comfort of the air conditioner.

[0029] The improvements to the guide ring 1 mentioned above include two components. One is a guide portion 12, angled outward along the circumferential edge of the first end of the guide ring 1. This effectively directs incoming air from the side toward the fan blades 2. The other component is an outflow portion 13, located circumferentially of the fan blades 2. This outflow portion 13 has an outwardly flared shape to maximize airflow. For kitchen air conditioners with circumferential air intake and a mixed flow fan, this improvement can increase the air intake area of the fan blades 2, thereby increasing the overall airflow volume.

[0030] The structural size and diameter of the guide ring 1 affect the air volume and noise of the whole machine. The embodiment of the present invention explores the size setting of the guide ring 1 to further increase the air volume of the whole machine and reduce the noise. Figure 4 As shown, in a preferred embodiment of the present invention, the angle β between the guide portion 12 and the axis of the body 11 is 10°<β<55°, so that the air intake from the circumference of the housing 3 can be effectively and as much as possible directed to the fan blades 2 through the inclined guide portion 12. In a preferred embodiment of the present invention, the guide portion 12 is connected to the body 11 via a guide arc surface 14, and the arrangement of the arc surface effectively guides the air to the fan blades 2.

[0031] In this embodiment, based on the angle β, the angle α between the outlet portion 13 and the axis of the body 11 is 8°<α<20°, so that the air outlet of the outlet portion 13 is smoother, the air outlet volume of the whole machine is improved, and the comfort of the whole machine is improved.

[0032] The angles of the guide portion 12 and the outlet portion 13 can reduce the wind resistance of the guide ring 1 , allowing the air flow to flow into and out of the guide ring 1 more smoothly.

[0033] like Figure 4As shown, a guide ring 1 is provided in one embodiment of the present invention, and the axial length of the guide ring 1 (the height of the guide ring 1) is H, and the axial length (height) of the fan blade 2 is L, wherein 1 / 2*L≤H≤4 / 5*L. In the air conditioner, since the fan blade 2 is at a certain distance from the top wall of the shell 3, the air flow enters the fan blade 2 circumferentially from the shell 3. The distance setting facilitates the flow of air, and cooperates with the circumferential air inlet 31 of the shell 3 to ensure the air inlet area of the mixed flow fan blade 2, thereby ensuring the flow rate of the entire machine.

[0034] like Figure 5-6 As shown in the figure, Figure 5 The guide ring 1 of the prior art sets the air flow direction in the lower shell 3. The height of the guide ring 1 is too low, resulting in eddy currents at the inlet of the guide ring 1. The appearance of eddy currents will cause increased noise. Figure 6 The guide ring 1 of the present application is provided with an air flow direction in the lower shell 3. At this time, no eddy current appears at the inlet of the guide ring 1, thereby effectively reducing the noise of the entire machine.

[0035] The combination of the above-mentioned parameters such as the guide portion 12, the outlet portion 13, and the height of the guide ring 1 can ensure smoother inflow and outflow of air, increase the air volume of the entire machine, reduce the noise of the entire machine, and improve the usability and comfort of the entire machine.

[0036] In the description of the present invention, it should be understood that terms such as "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or locations based on those shown in the accompanying drawings. These terms are used solely to facilitate description and simplify the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0038] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] 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 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. A fan assembly, characterized in that: It comprises a guide ring (1) and a fan blade (2); The guide ring (1) comprises: a cylindrical body (11), the body (11) having a first end and a second end opposite to each other, the first end of the body (11) being provided with a guide portion (12) along its circumferential edge, the guide portion (12) and the body (11) being angled with each other, the included angle β between the guide portion (12) and the axis of the body (11) being 10°<β<55°; in the direction from the first end to the second end of the body (11), the guide portion (12) is gradually expanded, the guide portion (12) plays a role in converting radial air intake into axial air guide; the second end of the body (11) is connected to an outflow portion (13), the included angle α between the outflow portion (13) and the axis of the body (11) being 8°<α<20°, and the diameter gradually increases from the first end of the body (11) to the outflow portion (13); The guide ring (1) is sleeved on the outside of the fan blade (2), and in the axial direction of the fan assembly, part of the fan blade (2) extends out of the first end of the body (11); the axial length of the guide ring (1) is H, and the axial length of the fan blade (2) is L, wherein 1 / 2*L≤H≤4 / 5*L.

2. The fan assembly according to claim 1, characterized in that The guide portion (12) is connected to the main body (11) via a guide arc surface (14).

3. The fan assembly according to claim 1, characterized in that A fixing portion (15) for fixing the body (11) is provided on the outer wall of the body (11).

4. An air conditioner, characterized in that: The invention comprises the fan assembly according to any one of claims 1 to 3.

5. The air conditioner according to claim 4, characterized in that The fan assembly is arranged in a housing (3), and the guide ring (1) is fixed to the inner wall of the housing (3); an annular heat exchanger (4) and a motor (5) are arranged in the housing (3), and the fan blades (2) are connected to the motor (5); and an air duct is formed inside the housing (3).

6. The air conditioner according to claim 5, characterized in that An air inlet (31) is provided on the circumferential side wall of the shell (3), and an air outlet (32) is provided on the axial side wall of the shell (3), wherein the air outlet (32) is opposite to the second end of the guide ring (1).

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