Air duct assembly and air conditioner

Abstract

This utility model relates to a duct assembly and an air conditioner. The duct assembly includes a base frame, a motor bracket, and a seal. The base frame has an impeller cavity and includes a mounting base. The motor bracket is located on the side of the mounting base opposite to the impeller cavity and has a motor shaft hole. The seal is located between the mounting base and the motor bracket and is circumferentially arranged around the motor shaft hole. The duct assembly of this utility model can reduce the probability of airflow leakage and improve the stability of airflow during discharge.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, specifically to an air duct assembly and an air conditioner. Background Technology

[0002] With economic and social development and the improvement of people's living standards, users are constantly demanding higher levels of comfort from air conditioners. When the airflow of an air conditioner increases, the negative pressure in the air duct area also increases. In related technologies, there is a problem with the seal between the air outlet frame base and the motor connection, which can easily lead to airflow leakage. This leakage can also cause vibration, affecting the airflow performance. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose an air duct assembly that can reduce the probability of airflow leakage and improve the stability of airflow during discharge.

[0005] An embodiment of this utility model also proposes an air conditioner.

[0006] The air duct assembly of this utility model includes: a base frame, wherein an impeller cavity is provided in the base frame, and the base frame includes a mounting base; a motor bracket, wherein the motor bracket is disposed on the side of the mounting base away from the impeller cavity, and the motor bracket has a motor shaft hole; and a sealing member, wherein the sealing member is disposed between the mounting base and the motor bracket, and the sealing member is arranged circumferentially around the motor shaft hole.

[0007] According to the embodiment of the present invention, the air duct assembly has a sealing element located between the mounting base and the motor bracket, and the sealing element is arranged circumferentially around the motor shaft hole. Therefore, the sealing element can isolate the airflow in the impeller cavity from the external airflow, thereby reducing the probability of airflow leakage. Furthermore, under the blocking effect of the sealing element, it can prevent the airflow from mutually entraining each other at the position of the bottom frame and the motor bracket to form unstable vortices, thus preventing surge problems. This is beneficial to improving the stability of airflow discharge and improving the air outlet effect.

[0008] In some embodiments, the seal includes a first sealing rib and a second sealing rib, the first sealing rib being disposed on the mounting base and the second sealing rib being disposed on the motor bracket, the first sealing rib and the second sealing rib being axially opposite to and cooperating with each other in the motor shaft hole.

[0009] In some embodiments, the first sealing rib and the second sealing rib abut against each other in the axial direction of the motor shaft hole.

[0010] In some embodiments, one of the first sealing ribs and the second sealing ribs is provided with a groove, and the other of the first sealing ribs and the second sealing ribs extends into the groove.

[0011] In some embodiments, the seal includes a first sealing rib and a second sealing rib. The first sealing rib is disposed on the mounting base, and the second sealing rib is disposed on the motor bracket. The first sealing rib and the second sealing rib are arranged sequentially along the radial direction of the motor shaft hole. In a projection plane parallel to the axial direction of the motor shaft hole, at least a portion of the projections of the first sealing rib and the second sealing rib overlap.

[0012] In some embodiments, the seal includes a first sealing rib, a first end of which is connected to the mounting base and a second end of which abuts against the motor bracket; and / or, the seal includes a second sealing rib, a first end of which is connected to the motor bracket and a second end of which abuts against the mounting base.

[0013] In some embodiments, the motor bracket has a water tank on the side facing the mounting base, the water tank is arranged circumferentially along the motor shaft hole, and at least a portion of the seal is disposed in the water tank.

[0014] In some embodiments, the seal includes a first sealing rib and a second sealing rib. The first sealing rib is disposed on the mounting base, and the second sealing rib is disposed on the motor bracket. The first sealing rib and the second sealing rib cooperate with each other, and the axial height of the second sealing rib along the motor shaft hole is less than the depth of the water tank.

[0015] In some embodiments, the motor bracket is provided with a positioning hole and a connecting hole, the positioning hole and the connecting hole are located inside the water tank, the mounting base is provided with a positioning post and a connecting post, the positioning post is inserted into the positioning hole, and the connecting post is opposite to the connecting hole and connected by a threaded component.

[0016] Another embodiment of the air conditioner of the present invention includes the air duct assembly described in any one of the embodiments of the present invention.

[0017] According to the embodiment of the present invention, the air conditioner has a sealing element located between the mounting base and the motor bracket, and the sealing element is arranged circumferentially around the motor shaft hole. Therefore, the sealing element can isolate the airflow in the impeller cavity from the external airflow, thereby reducing the probability of airflow leakage. Furthermore, under the blocking effect of the sealing element, it can prevent the airflow from mutually entraining each other at the bottom frame and the motor bracket to form unstable vortices, thus preventing surge problems. This is beneficial to improving the stability of airflow discharge and improving the air outlet effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the bottom frame of the air duct assembly according to an embodiment of the present utility model.

[0019] Figure 2 This is a partial view of the bottom frame of the air duct assembly according to an embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of the motor bracket of the air duct assembly according to an embodiment of the present utility model.

[0021] Figure 4 This is a schematic diagram of the motor bracket of the air duct assembly according to another embodiment of the present utility model.

[0022] Figure 5 This is a cross-sectional view of the motor bracket of the air duct assembly according to an embodiment of the present utility model.

[0023] Figure 6 This is a partial view of the air duct assembly according to an embodiment of the present utility model.

[0024] Figure 7 This is a partial cross-sectional view of the air duct assembly according to an embodiment of the present invention.

[0025] Figure 8 yes Figure 7 A magnified view of A in the middle.

[0026] Figure label:

[0027] 1. Base frame; 11. Impeller cavity; 12. Mounting base; 121. Positioning post; 122. Connecting post;

[0028] 2. Motor bracket; 21. Motor shaft hole; 22. Water tank; 23. Positioning hole; 24. Connecting hole; 25. Reinforcing rib; 26. Drain outlet;

[0029] 3. Sealing element; 31. First sealing rib; 311. Groove; 32. Second sealing rib. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] The following is a reference appendix. Figures 1 to 8 This invention describes an air duct assembly and an air conditioner according to embodiments of the present invention.

[0032] like Figures 1 to 3As shown, the air duct assembly of this utility model embodiment includes: a base frame 1, a motor bracket 2, and a sealing member 3. The base frame 1 has an impeller cavity 11 and includes a mounting base 12. The motor bracket 2 is located on the side of the mounting base 12 away from the impeller cavity 11 and has a motor shaft hole 21 for a motor shaft to pass through. The sealing member 3 is located between the mounting base 12 and the motor bracket 2, and is arranged circumferentially around the motor shaft hole 21.

[0033] According to the embodiment of the present invention, the air duct assembly has a sealing element 3 located between the mounting base 12 and the motor bracket 2, and the sealing element 3 is arranged circumferentially around the motor shaft hole 21. Therefore, the sealing element 3 can isolate the airflow in the impeller cavity 11 from the external airflow, thereby reducing the probability of airflow leakage. Furthermore, under the blocking effect of the sealing element 3, it can prevent the airflow from mutually entraining each other at the position of the bottom frame 1 and the motor bracket 2 to form an unstable vortex, which would cause a surge problem. This is beneficial to improving the stability of the airflow during discharge and improving the air outlet effect.

[0034] Understandably, when the airflow passes through the junction of the mounting base 12 and the motor bracket 2, the seal 3 can increase the flow resistance of the airflow, making it difficult for external airflow to pass through the junction of the mounting base 12 and the motor bracket 2 and enter the impeller cavity 11. This reduces the probability of airflow leakage at the junction of the mounting base 12 and the motor bracket 2, and also makes it less likely for vortices to form at the junction of the mounting base 12 and the motor bracket 2, thus ensuring the stability of the airflow and making the air outlet smoother.

[0035] Optionally, such as Figure 2 , Figure 3 and Figure 7 As shown, the sealing element 3 includes a first sealing rib 31 and a second sealing rib 32. The first sealing rib 31 is disposed on the mounting base 12, and the second sealing rib 32 is disposed on the motor bracket 2. The first sealing rib 31 and the second sealing rib 32 are axially opposite to each other in the motor shaft hole 21 and cooperate with each other. It can be understood that the first sealing rib 31 and the second sealing rib 32 are arranged opposite each other to block the airflow. The cooperation between the first sealing rib 31 and the second sealing rib 32 can reduce the probability of airflow passing through the installation gap between the first sealing rib 31 and the second sealing rib 32, thereby improving the sealing effect of the air duct.

[0036] For example, the first sealing rib 31 and the second sealing rib 32 abut against each other in the axial direction of the motor shaft hole 21. It can be understood that the axial end face of the first sealing rib 31 abuts against the axial end face of the second sealing rib 32, thereby making the sealing structure formed by the first sealing rib 31 and the second sealing rib 32 simple, easy to process and manufacture, and with good sealing effect.

[0037] For example, both the first sealing rib 31 and the second sealing rib 32 are generally annular structures. The outer diameter of the first sealing rib 31 is approximately equal to the outer diameter of the second sealing rib 32, and the inner diameter of the first sealing rib 31 is approximately equal to the inner diameter of the second sealing rib 32.

[0038] In another example, such as Figure 7 and Figure 8 As shown, one of the first sealing rib 31 and the second sealing rib 32 is provided with a groove 311, and the other of the first sealing rib 31 and the second sealing rib 32 extends into the groove 311. This increases the mating area of ​​the first sealing rib 31 and the second sealing rib 32, further reducing the probability of airflow passing through the installation gap between the first sealing rib 31 and the second sealing rib 32.

[0039] For example, the groove 311 is provided on the first sealing rib 31, and the second sealing rib 32 extends into the groove 311 along the axial direction of the motor shaft hole 21. Alternatively, the groove 311 is provided on the second sealing rib 32, and the first sealing rib 31 extends into the groove 311 along the axial direction of the motor shaft hole 21.

[0040] like Figure 7 and Figure 8 As shown, taking the groove 311 located on the first sealing rib 31 as an example, the longitudinal section of the groove 311 is U-shaped, and the end of the second sealing rib 32 extends into the U-shaped groove 311. The end of the second sealing rib 32 can be attached to the bottom wall or side wall of the groove 311, or it can be spaced apart from the bottom wall or side wall of the groove 311. Since the end of the second sealing rib 32 extends into the U-shaped groove 311, a meandering sealing structure can be formed at the connection position of the first sealing rib 31 and the second sealing rib 32. Thus, when the airflow passes through the junction of the first sealing rib 31 and the second sealing rib 32, the airflow has to undergo multiple bends to increase the friction loss and local resistance loss of the airflow, thereby reducing the probability of airflow leakage at that point.

[0041] Optionally, such as Figure 2 and Figure 3 As shown, the seal 3 includes a first sealing rib 31 and a second sealing rib 32. The first sealing rib 31 is disposed on the mounting base 12, and the second sealing rib 32 is disposed on the motor bracket 2. The first sealing rib 31 and the second sealing rib 32 are arranged sequentially along the radial direction of the motor shaft hole 21. In a projection plane parallel to the axial direction of the motor shaft hole 21, at least a portion of the projections of the first sealing rib 31 and the second sealing rib 32 overlap. For example, the first sealing rib 31 and the second sealing rib 32 can be spaced apart along the radial direction of the motor shaft hole 21. Alternatively, the first sealing rib 31 and the second sealing rib 32 can abut against each other along the radial direction of the motor shaft hole 21.

[0042] It is understandable that the first sealing rib 31 and the second sealing rib 32 are arranged in an alternating manner. As a result, when the airflow passes through the junction of the first sealing rib 31 and the second sealing rib 32, the airflow needs to make multiple bends to increase the friction loss and local resistance loss of the airflow and reduce the probability of airflow leakage at that point.

[0043] For example, both the first sealing rib 31 and the second sealing rib 32 are generally annular structures, and the first sealing rib 31 is disposed within the annular structure formed by the second sealing rib 32. That is, the outer diameter of the first sealing rib 31 is smaller than the outer diameter of the second sealing ring, and the inner diameter of the first sealing rib 31 is smaller than the inner diameter of the second sealing rib 32.

[0044] For example, both the first sealing rib 31 and the second sealing rib 32 are generally annular structures, and the second sealing rib 32 is disposed within the annular structure formed by the first sealing rib 31. That is, the outer diameter of the second sealing rib 32 is smaller than the outer diameter of the first sealing ring, and the inner diameter of the second sealing rib 32 is smaller than the inner diameter of the first sealing rib 31.

[0045] In some embodiments, such as Figure 2 As shown, the seal 3 includes a first sealing rib 31. The first end of the first sealing rib 31 is connected to the mounting base 12, and the second end of the first sealing rib 31 abuts against the motor bracket 2. This allows for a simple design structure and convenient manufacturing of the seal 3. For example, the first end of the first sealing rib 31 is integrally connected to the mounting base 12. After the motor bracket 2 is fixed to the mounting base 12, the second end of the first sealing rib 31 abuts against the motor bracket 2, thereby reducing the probability of airflow passing through the installation gap between the first sealing rib 31 and the motor bracket 2.

[0046] Optionally, such as Figure 3 As shown, the seal 3 includes a second sealing rib 32. The first end of the second sealing rib 32 is connected to the motor bracket 2, and the second end of the second sealing rib 32 abuts against the mounting base 12. This allows for a simple design structure and convenient manufacturing of the seal 3. For example, the first end of the second sealing rib 32 is integrally connected to the motor bracket 2. After the motor bracket 2 is fixed to the mounting base 12, the second end of the second sealing rib 32 abuts against the mounting base 12, thereby reducing the probability of airflow passing through the installation gap between the first sealing rib 31 and the motor bracket 2.

[0047] In some embodiments, such as Figure 5 and Figure 8As shown, the motor bracket 2 has a water tank 22 on the side facing the mounting base 12. The water tank 22 is arranged circumferentially along the motor shaft hole 21, and at least part of the seal 3 is located within the water tank 22. It is understood that the water tank 22 is used to collect condensate generated at the positions of the motor bracket 2 and the mounting base 12, and can also guide the condensate flow. Since part of the seal 3 is located within the water tank 22, some space within the water tank 22 can be utilized, making the connection structure between the motor bracket 2 and the mounting base 12 more compact.

[0048] like Figure 3 As shown, the motor bracket 2 is provided with a drain outlet 26, and the water tank 22 is connected to the drain outlet 26.

[0049] Optionally, such as Figure 8 As shown, the seal 3 includes a first sealing rib 31 and a second sealing rib 32. The first sealing rib 31 is disposed on the mounting base 12, and the second sealing rib 32 is disposed on the motor bracket 2. The first sealing rib 31 and the second sealing rib 32 cooperate with each other. The axial height of the second sealing rib 32 along the motor shaft hole 21 is less than the depth of the water tank 22. Because the axial height of the second sealing rib 32 along the motor shaft hole 21 is less than the depth of the water tank 22, the junction of the first sealing rib 31 and the second sealing rib 32 can be located inside the water tank 22, thereby further increasing the friction loss and local resistance loss of the airflow and reducing the probability of airflow leakage at that point.

[0050] like Figure 2 and Figure 3 As shown, the motor bracket 2 has a positioning hole 23 and a connecting hole 24 located within the water tank 22. The mounting base 12 has a positioning post 121 and a connecting post 122. The positioning post 121 is inserted into the positioning hole 23, and the connecting post 122 is opposite to the connecting hole 24 and connected by a threaded component. The insertion of the positioning post 121 into the positioning hole 23 can pre-fix the installation of the motor bracket 2 and improve the positioning accuracy of the motor bracket 2. Furthermore, a threaded component can be inserted into the positioning post 121 to further lock the motor bracket 2. In addition, since both the positioning hole 23 and the connecting hole 24 are located within the water tank 22, the space within the water tank 22 can be fully utilized, resulting in a compact connection structure between the motor bracket 2 and the mounting base 12.

[0051] like Figure 4 As shown, the motor bracket 2 has a reinforcing rib 25 on the side opposite to the mounting base 12. The reinforcing rib 25 can extend radially along the motor bracket 2. There are multiple reinforcing ribs 25, which are arranged at intervals along the circumference of the motor shaft hole 21, thereby improving the structural strength of the motor bracket 2.

[0052] Another embodiment of the air conditioner of the present invention includes the air duct assembly of the present invention.

[0053] According to the embodiment of the present invention, since the sealing element 3 is located between the mounting base 12 and the motor bracket 2, and the sealing element 3 is arranged circumferentially around the motor shaft hole 21, the sealing element 3 can isolate the airflow in the impeller cavity 11 from the external airflow, thereby reducing the probability of airflow leakage. Furthermore, under the blocking effect of the sealing element 3, it can prevent the airflow from mutually entraining each other at the position of the bottom frame 1 and the motor bracket 2 to form unstable vortices and cause surge problems, which is beneficial to improving the stability of airflow discharge and improving the air outlet effect.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A duct assembly, characterized in that, include: A base frame (1) is provided inside the base frame (1), and the base frame (1) includes a mounting base (12); Motor bracket (2), the motor bracket (2) is located on the side of the mounting base (12) away from the impeller cavity (11), the motor bracket (2) has a motor shaft hole (21); A sealing element (3) is disposed between the mounting base (12) and the motor bracket (2), and the sealing element (3) is arranged circumferentially around the motor shaft hole (21).

2. The air duct assembly according to claim 1, characterized in that, The sealing element (3) includes a first sealing rib (31) and a second sealing rib (32). The first sealing rib (31) is disposed on the mounting base (12), and the second sealing rib (32) is disposed on the motor bracket (2). The first sealing rib (31) and the second sealing rib (32) are opposite to each other and cooperate with each other in the axial direction of the motor shaft hole (21).

3. The air duct assembly according to claim 2, characterized in that, The first sealing rib (31) and the second sealing rib (32) abut against each other in the axial direction of the motor shaft hole (21).

4. The air duct assembly according to claim 2, characterized in that, One of the first sealing rib (31) and the second sealing rib (32) is provided with a groove (311), and the other of the first sealing rib (31) and the second sealing rib (32) extends into the groove (311).

5. The air duct assembly according to claim 1, characterized in that, The sealing element (3) includes a first sealing rib (31) and a second sealing rib (32). The first sealing rib (31) is disposed on the mounting base (12), and the second sealing rib (32) is disposed on the motor bracket (2). The first sealing rib (31) and the second sealing rib (32) are arranged in sequence along the radial direction of the motor shaft hole (21). In the projection plane parallel to the axial direction of the motor shaft hole (21), at least a portion of the projection of the first sealing rib (31) and the projection of the second sealing rib (32) overlap.

6. The air duct assembly according to claim 1, characterized in that, The sealing element (3) includes a first sealing rib (31), the first end of the first sealing rib (31) is connected to the mounting base (12), and the second end of the first sealing rib (31) abuts against the motor bracket (2); And / or, the seal (3) includes a second sealing rib (32), the first end of which is connected to the motor bracket (2), and the second end of which abuts against the mounting base (12).

7. The air duct assembly according to any one of claims 1-6, characterized in that, The motor bracket (2) has a water tank (22) on the side facing the mounting base (12). The water tank (22) is arranged circumferentially along the motor shaft hole (21), and at least part of the seal (3) is located in the water tank (22).

8. The air duct assembly according to claim 7, characterized in that, The sealing element (3) includes a first sealing rib (31) and a second sealing rib (32). The first sealing rib (31) is disposed on the mounting base (12), and the second sealing rib (32) is disposed on the motor bracket (2). The first sealing rib (31) and the second sealing rib (32) cooperate with each other. The axial height of the second sealing rib (32) along the motor shaft hole (21) is less than the depth of the water tank (22).

9. The air duct assembly according to claim 7, characterized in that, The motor bracket (2) is provided with a positioning hole (23) and a connecting hole (24). The positioning hole (23) and the connecting hole (24) are located inside the water tank (22). The mounting base (12) is provided with a positioning post (121) and a connecting post (122). The positioning post (121) is inserted into the positioning hole (23), and the connecting post (122) is opposite to the connecting hole (24) and connected by a threaded component.

10. An air conditioner, characterized in that, The air duct assembly included in any one of claims 1-9.

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