Side-blowing outdoor unit

Abstract

The utility model relates to the technical field of air conditioners, in particular to a side-blowing outdoor unit. The side-blowing outdoor unit comprises an axial flow impeller, a flow guide ring and a flow guide ring; the flow guide ring surrounds the air outlet side of the axial flow impeller, an air inlet and an air outlet of the flow guide ring are both in a horn shape, the flow guide ring is arranged on the air outlet side of the flow guide ring, the cross section of the flow guide ring is in an arc shape, and the concave side of the flow guide ring faces the flow guide ring. The projection of the inner edge of the flow guide ring on the target projection surface is a first projection, the projection of the inner wall of the narrowest part of the flow guide ring on the target projection surface is a second projection, the first projection is located on the periphery of the second projection, and the target projection surface is perpendicular to the axis of the axial flow impeller. According to the side-blowing outdoor unit provided by the utility model, the air outlet side of the flow guide ring is provided with the flow guide ring which meets specific requirements, so that the turbulence of airflow near the air outlet of the flow guide ring can be inhibited, the efficiency of the motor can be improved, and the noise can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to a side-blowing outdoor unit. Background Technology

[0002] The side-blowing outdoor unit of a split-type air conditioner is generally equipped with a semi-open axial flow fan. The semi-open axial flow fan mainly consists of an axial flow impeller, a guide ring that surrounds only the air outlet side of the axial flow impeller, and a motor that runs the axial flow impeller. This semi-open axial flow fan can not only promote the inflow of air from the upstream of the air inlet side, but also promote the inflow of air from the outer periphery of the air inlet side. The air inlet and outlet of the guide ring are both funnel-shaped, and the inner wall is sharply bent. This causes the airflow drawn in from the outer periphery of the air inlet side to easily generate turbulence near the air outlet when it flows along the inner wall of the guide ring. This not only generates more noise, but also reduces the efficiency of the motor. Utility Model Content

[0003] The purpose of this utility model is to provide a side-blowing outdoor unit to alleviate the technical problems of high noise and low motor efficiency in existing side-blowing outdoor units.

[0004] The side-blowing outdoor unit provided by this utility model includes an axial flow impeller, a guide ring, and a guide ring.

[0005] The guide ring surrounds the air outlet side of the axial flow impeller. The air inlet and outlet of the guide ring are both funnel-shaped. The guide ring is located on the air outlet side of the guide ring. The cross-section of the guide ring is arc-shaped, and the concave side of the guide ring faces the guide ring.

[0006] The projection of the inner edge of the guide ring onto the target projection surface is the first projection, and the projection of the inner wall of the narrowest part of the guide ring onto the target projection surface is the second projection. The first projection is located outside the second projection, and the target projection surface is perpendicular to the axis of the axial flow impeller.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] During operation, the airflow drawn into the axial impeller from the outer periphery of the inlet side flows from the inside to the outside along the inner wall of the guide ring. Because the cross-section of the guide ring is arc-shaped and the concave side of the guide ring faces the guide ring, when the airflow reaches the vicinity of the guide ring's outlet, the guide ring guides the airflow close to the inner wall of the guide ring, making it difficult for the airflow between the guide ring and the guide ring to detach from the guide ring, and allowing it to continue flowing at high speed along the inner wall of the guide ring. At the same time, the airflow flowing to the side of the guide ring opposite to the guide ring is attracted by the high-speed airflow between the guide ring and the guide ring, flows along the side of the guide ring opposite to the guide ring, and can continue to flow along the guide ring after detaching from the guide ring. Thus, it can suppress the turbulence generated by the airflow near the outlet of the guide ring, improve the efficiency of the motor in the axial fan, and reduce noise. In addition, the airflow flowing near the air outlet of the guide ring can diffuse obliquely while decelerating smoothly, which can improve the dynamic pressure to static pressure conversion performance of the axial fan, thereby improving the air delivery performance and static pressure efficiency.

[0009] It should be noted that, on the target projection plane perpendicular to the axis of the axial impeller, setting the first projection of the inner edge of the guide ring as the outer periphery of the second projection surrounding the inner wall of the narrowest part of the guide ring ensures that the guide ring does not obstruct the axial impeller. Thus, the guide ring will not generate resistance to the airflow delivered by the axial impeller, ensuring the ventilation performance of the axial impeller, avoiding unnecessary power loss to the motor, and preventing the addition of unnecessary noise.

[0010] Therefore, the side-blowing outdoor unit provided by this utility model, by setting a guide ring that meets specific requirements on the air outlet side of the guide ring, can suppress the turbulence generated by the airflow near the air outlet of the guide ring, improve the efficiency of the motor, and reduce noise.

[0011] Preferably, as one possible implementation, both the guide ring and the guide coil are circular, the inner diameter of the narrowest part of the guide coil is smaller than the inner diameter of the inner edge of the guide ring, and the central axis of the guide ring coincides with the central axis of the guide coil.

[0012] The advantages are that it is easy to assemble and can improve the performance of axial fans.

[0013] Preferably, as one possible implementation, the ratio of the inner diameter of the guide ring to the minimum inner diameter of the guide coil is in the range of 1.005 to 1.04.

[0014] The beneficial effect is that it not only ensures the guiding effect of the guide ring, but also that the guide ring hardly creates any resistance to the airflow delivered by the axial impeller.

[0015] Preferably, as one possible implementation, the distance between each part of the guide ring and the guide coil is the same.

[0016] The beneficial effects are that it can improve air supply performance and static pressure efficiency.

[0017] Preferably, as one possible implementation, the distance between the guide ring and the guide coil is S1, the axial height of the guide coil is H0, and the ratio of S1 to H0 is in the range of 0.04 to 0.1.

[0018] The beneficial effect is that it can achieve a good turbulence suppression effect.

[0019] Preferably, as one possible implementation, the distance between the guide ring and the guide coil gradually decreases from the inside out.

[0020] The beneficial effect is that it can further improve air supply performance and static pressure efficiency.

[0021] Preferably, as one possible implementation, the distance between the inner edge of the guide ring and the guide coil is S2, the distance between the outer edge of the guide ring and the guide coil is S3, and the axial height of the guide coil is H0; the ratio of S2 to H0 ranges from 0.04 to 0.1, and / or the ratio of S3 to S2 ranges from 0.5 to 0.8.

[0022] The beneficial effect is that it can achieve good turbulence suppression and ensure good air supply performance.

[0023] Preferably, as one possible implementation, the air outlet of the guide ring is sealed with an air outlet grille, the guide ring is located between the guide ring and the air outlet grille, the outer edge of the guide ring is connected to the side wall of the air outlet grille, and the side wall of the air outlet grille is provided with air outlets on both sides of the guide ring.

[0024] The beneficial effect is that it can protect the axial flow impeller and ensure that the airflow can flow out smoothly.

[0025] Preferably, as one possible implementation, the air guide ring is integrally formed with the air outlet grille, or the air guide ring and the air outlet grille are connected by a connecting component.

[0026] The beneficial effects are that it can reduce the number of parts and facilitate assembly; or, facilitate processing.

[0027] Preferably, as one possible implementation, the side-blowing outdoor unit further includes a front panel, the front panel having a window, the air guide ring being installed at the window of the front panel, and the air outlet end of the air guide ring being smoothly connected to the front panel.

[0028] The beneficial effect is that it avoids airflow turbulence at the junction of the air deflector and the front panel. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Figure 1 A cross-sectional schematic diagram of a partial structure of a side-blowing outdoor unit provided in an embodiment of this utility model;

[0031] Figure 2 for Figure 1 A schematic diagram of local airflow in a side-blowing outdoor unit provided in an embodiment of this utility model;

[0032] Figure 3 A cross-sectional schematic diagram of a partial structure of another side-blowing outdoor unit provided in an embodiment of this utility model;

[0033] Figure 4 for Figure 3 A schematic diagram of the local airflow of a side-blowing outdoor unit provided in this utility model embodiment.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100-Axial flow impeller;

[0036] 200-guide ring;

[0037] 300-Guide Ring;

[0038] 400 - Air vent grille;

[0039] 500-front plate;

[0040] 600-Motor. Detailed Implementation

[0041] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0043] See Figures 1-4This embodiment provides a side-blowing outdoor unit, which includes an axial impeller 100, a guide ring 200, and a guide ring 300. The guide ring 200 surrounds the air outlet side of the axial impeller 100, and both the air inlet and outlet of the guide ring 200 are funnel-shaped. The guide ring 300 is disposed on the air outlet side of the guide ring 200, and the cross-section of the guide ring 300 is arc-shaped, with the concave side of the guide ring 300 facing the guide ring 200. The projection of the inner edge of the guide ring 300 onto the target projection plane is the first projection, and the projection of the inner wall of the narrowest part of the guide ring 200 onto the target projection plane is the second projection. The first projection is located outside the second projection, and the target projection plane is perpendicular to the axis of the axial impeller 100.

[0044] During operation, the airflow drawn into the axial impeller 100 from the outer periphery of the inlet side flows from the inside to the outside along the inner wall of the guide ring 200. Because the cross-section of the guide ring 300 is arc-shaped, and the concave side of the guide ring 300 faces the guide ring 200, when the airflow reaches the vicinity of the outlet of the guide ring 200, the guide ring 300 guides the airflow close to the inner wall of the guide ring 200. This prevents the airflow between the guide ring 300 and the guide ring 200 from easily separating from the guide ring 200, allowing it to continue flowing at high speed along the inner wall of the guide ring 200 (airflow direction as shown). Figure 2 and Figure 4 (As shown by the middle arrow); simultaneously, the airflow flowing to the side of the guide ring 300 opposite to the guide ring 200 will be attracted by the high-speed airflow between the guide ring 300 and the guide ring 200, flowing along the side of the guide ring 300 opposite to the guide ring 200, and can continue to flow along the guide ring 200 after leaving the guide ring 300 (airflow direction as shown by the middle arrow). Figure 2 and Figure 4 (As shown by the middle arrow), this suppresses airflow turbulence near the outlet of the guide ring 200, improving the efficiency of the motor 600 in the axial fan and reducing noise. Furthermore, the airflow flowing near the outlet of the guide ring 200 can diffuse obliquely while smoothly decelerating, improving the dynamic pressure to static pressure conversion performance of the axial fan, thereby enhancing airflow performance and static pressure efficiency.

[0045] It should be noted that on the target projection plane perpendicular to the axis of the axial impeller 100, the first projection of the inner edge of the guide ring 300 is set as the outer periphery of the second projection surrounding the inner wall of the narrowest part of the guide ring 200. This ensures that the guide ring 300 does not obstruct the axial impeller 100. As a result, the guide ring 300 will not generate resistance to the airflow delivered by the axial impeller 100, thus ensuring the ventilation performance of the axial impeller 100, avoiding unnecessary power loss to the motor 600, and preventing the addition of unnecessary noise.

[0046] Therefore, the side-blowing outdoor unit provided in this embodiment, by setting a guide ring 300 that meets specific requirements on the air outlet side of the guide ring 200, can suppress the turbulence generated by the airflow near the air outlet of the guide ring 200, improve the efficiency of the motor 600, and reduce noise.

[0047] Preferably, both the guide ring 200 and the guide ring 300 can be circular in shape. The inner diameter of the narrowest part of the guide ring 200 is set to be smaller than the inner diameter of the inner edge of the guide ring 300, and the central axis of the guide ring 300 is set to coincide with the central axis of the guide ring 200. In this way, the first projection of the inner edge of the guide ring 300 on the target projection plane surrounds the outer periphery of the second projection of the inner wall of the narrowest part of the guide ring 200 on the target projection plane. Since both the guide ring 200 and the guide ring 300 are circular, during assembly, there is no need to consider the relative angle between the guide ring 200 and the guide ring 300 in the circumferential direction. It is only necessary to set the central axis of the guide ring 300 and the central axis of the guide ring 200 on a straight line. That is, there is no need to adjust the angle of the guide ring 300 relative to the guide ring 200, making the operation more convenient. In addition, it can also make the airflow distribution at the air outlet of the axial fan more uniform, thereby improving the performance of the axial fan.

[0048] Specifically, the ratio of the inner diameter of the guide ring 300 to the minimum inner diameter of the guide ring 200 can be set to a range of 1.005 to 1.04. Within this range, not only can the guiding effect of the guide ring 300 be guaranteed, but the guide ring 300 will also hardly generate any resistance to the airflow delivered by the axial flow impeller 100.

[0049] As one possible implementation method, see Figure 1 and Figure 2 The distance between each part of the guide ring 300 and the guide ring 200 can be set to be the same. The airflow flowing near the air outlet of the guide ring 200 can diffuse obliquely and decelerate smoothly, which can improve the dynamic pressure to static pressure conversion performance of the axial fan, thereby improving the air delivery performance and static pressure efficiency.

[0050] Specifically, S1 represents the distance between the guide ring 300 and the guide coil 200, and H0 represents the axial height of the guide coil 200. The ratio of S1 to H0 is set to a range of 0.04 to 0.1. Within this range, the guide ring 300 will not be too close to the guide coil 200, resulting in insufficient airflow between the guide ring 300 and the guide coil 200, thus affecting the turbulence suppression effect; nor will it be too far from the guide coil 200, thus failing to achieve the turbulence suppression effect.

[0051] As another possible implementation method, see Figure 3 and Figure 4The distance between the guide ring 300 and the guide ring 200 can be set to gradually decrease from the inside out. Under this condition, the gap between the guide ring 300 and the guide ring 200 gradually decreases from the inside out, which makes the high-speed airflow flowing between the guide ring 300 and the guide ring 200 gradually accelerate. In addition, the airflow flowing near the air outlet of the guide ring 200 can diffuse obliquely while decelerating more smoothly, which can further improve the dynamic pressure to static pressure conversion performance of the axial fan, thereby further improving the air delivery performance and static pressure efficiency.

[0052] Specifically, S2 represents the distance between the inner edge of the guide ring 300 and the guide coil 200, S3 represents the distance between the outer edge of the guide ring 300 and the guide coil 200, and H0 represents the axial height of the guide coil 200. The ratio of S2 to H0 can be set to a range of 0.04 to 0.1. Within this range, the guide ring 300 will not be too close to the guide coil 200, resulting in insufficient airflow between them and affecting the turbulence suppression effect; nor will it be too far from the guide coil 200, thus failing to provide a guiding effect. Alternatively, the ratio of S3 to S2 can be set to a range of 0.5 to 0.8. Within this range, the airflow entering the space between the guide ring 300 and the guide coil 200 will achieve a significant acceleration effect without excessively reducing the channel area, thus ensuring good air delivery performance of the axial fan.

[0053] An air outlet grille 400 can be installed to block the air outlet of the guide ring 200, thereby shielding the axial flow impeller 100. A guide ring 300 is placed between the guide ring 200 and the air outlet grille 400, with the outer edge of the guide ring 300 connected to the side wall of the air outlet grille 400. Air outlets are provided on both sides of the side wall of the air outlet grille 400, so that the airflow between the guide ring 300 and the guide ring 200, as well as the airflow on the side of the guide ring 300 facing away from the guide ring 200, can all flow smoothly out through the air outlets on the side wall of the air outlet grille 400.

[0054] As one possible implementation, the air guide ring 300 and the air outlet grille 400 can be set as an integral molded structure, that is, the air guide ring 300 and the air outlet grille 400 are two parts of an integral molded structure, which can reduce the number of parts and facilitate assembly.

[0055] As another possible implementation, the air guide ring 300 and the air outlet grille 400 can be connected by a connecting assembly. That is, the air guide ring 300 and the air outlet grille 400 are two independent parts, which are connected together by a connecting assembly, making them easy to process.

[0056] In the specific structure of the side-blowing outdoor unit provided in this embodiment, a front panel 500 can be provided, a window can be opened on the front panel 500, the air guide ring 200 can be installed at the window of the front panel 500, and the air guide ring 200 can be smoothly connected to the front panel 500. In this way, the airflow can remain smooth when it flows along the inside of the air guide ring 200 to the junction of the air guide ring 200 and the front panel 500, and avoid airflow turbulence at the junction of the air guide ring 200 and the front panel 500.

[0057] In fact, the air vent grille 400 is blocked at the window of the front panel 500, and the edge of the air vent grille 400 is connected to the front panel 500.

[0058] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A side-blown outdoor unit, characterized by, The axial flow impeller (100), the guide circle (200) and the guide ring (300) are arranged in sequence along the air flow direction. The guide circle (200) is arranged on the air outlet side of the axial flow impeller (100), the air inlet and the air outlet of the guide circle (200) are both in the shape of a horn, the guide ring (300) is arranged on the air outlet side of the guide circle (200), the cross section of the guide ring (300) is in the shape of an arc, and the concave side of the guide ring (300) faces the guide circle (200). The projection of the inner edge of the guide ring (300) on a target projection plane is a first projection, the projection of the inner wall of the narrowest part of the guide circle (200) on the target projection plane is a second projection, the first projection is located on the periphery of the second projection, and the target projection plane is perpendicular to the axis of the axial flow impeller (100).

2. The side-stirred outdoor machine according to claim 1, characterized in that, The guide circle (200) and the guide ring (300) are both in the shape of a ring, the inner diameter of the narrowest part of the guide circle (200) is smaller than the inner diameter of the inner edge of the guide ring (300), and the central axis of the guide ring (300) coincides with the central axis of the guide circle (200).

3. The side-stirred autoclave reactor according to claim 2, characterized in that The ratio of the inner diameter of the guide ring (300) to the minimum inner diameter of the guide circle (200) ranges from 1.005 to 1.

04.

4. The side-stirred outdoor machine according to claim 1, characterized in that, The distance between each part of the guide ring (300) and the guide circle (200) is consistent.

5. The side-stirred autoclave reactor according to claim 4, characterized in that The distance between the guide ring (300) and the guide circle (200) is S1, the height of the guide circle (200) in the axial direction is H0, and the ratio of S1 to H0 ranges from 0.04 to 0.

1.

6. The side-stirred outdoor machine according to claim 1, characterized in that, The distance between the guide ring (300) and the guide circle (200) gradually decreases from the inside to the outside.

7. The side-stirred autoclave reactor according to claim 6, characterized in that The distance between the inner edge of the guide ring (300) and the guide circle (200) is S2, the distance between the outer edge of the guide ring (300) and the guide circle (200) is S3, and the height of the guide circle (200) in the axial direction is H0. The ratio of S2 to H0 ranges from 0.04 to 0.1, and / or, the ratio of S3 to S2 ranges from 0.5 to 0.

8.

8. The side-stirred autoclave reactor according to any one of claims 1 to 7, characterized in that The air outlet of the guide circle (200) is blocked by an air outlet grille (400), the guide ring (300) is located between the guide circle (200) and the air outlet grille (400), the outer edge of the guide ring (300) is connected with the side wall of the air outlet grille (400), and the side wall of the air outlet grille (400) is provided with air outlets on both sides of the guide ring (300).

9. The side-stirred autoclave reactor according to claim 8, characterized in that The guide ring (300) and the air outlet grille (400) are integrally formed, or the guide ring (300) and the air outlet grille (400) are connected through a connecting assembly.

10. The side-stirred autoclave reactor according to any one of claims 1 to 7, characterized in that The outdoor unit further comprises a front plate (500) provided with a window, the guide circle (200) is installed at the window of the front plate (500), and the air outlet end of the guide circle (200) is smoothly connected with the front plate (500).

Images