Fan module, motor module and air conditioner

Abstract

The fan module comprises a fan end cover and a motor gland, the fan end cover is used for being connected with an impeller, the motor gland is arranged on the outer side of the fan end cover, an installation gap is formed between the motor gland and the fan end cover, a first dustproof part is arranged on the outer wall face of the fan end cover, and a second dustproof part is arranged on the outer wall face of the fan end cover. And at least part of the first dustproof part is positioned in the mounting gap. The fan module can effectively reduce the probability that dust and other foreign matters enter the motor, and is beneficial to prolonging the service life of the motor.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, specifically to a fan module, a motor module, and an air conditioner. Background Technology

[0002] As people's living standards continue to improve, air conditioners are becoming increasingly common in daily life, and people's requirements for air conditioners are also getting higher and higher. The impeller in an air conditioner is generally driven by a motor. In related technologies, if the motor installation design is not reasonable, dust or other foreign objects in the air conditioner casing can easily enter the motor, thereby affecting the service life of the motor. 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 a fan module that provides a good seal for the motor, effectively reducing the probability of dust and other foreign objects entering the motor and thus extending its service life.

[0005] An embodiment of this utility model proposes a motor module.

[0006] An embodiment of this utility model also proposes an air conditioner.

[0007] The fan module of this utility model includes: a fan end cover and a motor cover. The fan end cover is used to connect the impeller. The motor cover is located on the outside of the fan end cover and forms an installation gap. The outer wall surface of the fan end cover is provided with a first dustproof part, and at least a portion of the first dustproof part is located within the installation gap.

[0008] According to the embodiment of the present invention, the fan module has a first dustproof part on the outer wall of the fan end cover, and at least part of the first dustproof part is located in the installation gap. This reduces the probability of dust passing through the installation gap and entering the motor, thereby improving the sealing and dustproof effect of the fan module on the motor and helping to extend the service life of the motor.

[0009] In some embodiments, the first dustproof part includes a plurality of protruding teeth that extend circumferentially around the fan end cover, and the plurality of protruding teeth are arranged sequentially along the axial direction of the fan end cover.

[0010] In some embodiments, the protruding tooth has a first surface facing the impeller, the first surface being perpendicular to the outer wall surface of the fan end cover.

[0011] In some embodiments, the tooth has a second surface facing away from the impeller, and the included angle between the first surface and the second surface is α, wherein 10°≤α≤30°.

[0012] In some embodiments, the inner wall surface of the motor cover is provided with a second dustproof part, at least a portion of the second dustproof part is provided in the installation gap, and the first dustproof part and the second dustproof part are spaced apart along the axial direction of the fan end cover.

[0013] In some embodiments, in a projection plane orthogonal to the axial direction of the fan end cover, at least a portion of the projection of the second dustproof part overlaps with the projection of the first dustproof part.

[0014] Another embodiment of the present invention includes a motor module comprising a motor and a motor cover, wherein the motor cover is installed on the outside of the motor and the inner wall of the motor cover is provided with a second dustproof part.

[0015] According to the embodiment of the present invention, the motor module has a second dustproof part on the inner wall of the motor cover, which reduces the probability of dust entering the motor, thereby improving the sealing and dustproof effect of the motor and extending its service life.

[0016] In some embodiments, the motor includes a motor body and a fan end cover. The fan end cover is sleeved on the outside of the motor body. The motor body can drive the fan end cover to rotate. The motor cover is disposed between the fan end covers to form an installation gap. The second dustproof part is disposed within the installation gap.

[0017] In some embodiments, the second dustproof part includes a first dustproof rib and a second dustproof rib, the first dustproof rib and the second dustproof rib being spaced apart along the axial direction of the motor.

[0018] In some embodiments, the radial clearance between either the first dustproof rib or the second dustproof rib and the outer wall surface of the fan end cover is A, wherein 1.2mm≤A≤2mm; and / or, the first dustproof rib is disposed on the side of the fan end cover near the impeller, and the axial clearance between the first dustproof rib and the impeller is B, wherein 2mm≤B≤2.6mm.

[0019] In some embodiments, the outer wall surface of the fan end cover is provided with a first dustproof part, which is disposed between the first dustproof rib and the second dustproof rib along the axial direction of the fan end cover.

[0020] In some embodiments, the first dustproof part includes a plurality of protruding teeth that extend circumferentially around the fan end cover, and the plurality of protruding teeth are arranged sequentially along the axial direction of the fan end cover.

[0021] In some embodiments, the motor module further includes a motor mounting base, the motor body is disposed within the mounting cavity, the motor mounting base has a retaining edge, and at least a portion of the fan end cover is disposed radially between the motor cover and the retaining edge.

[0022] In some embodiments, the inner circumferential surface of the motor cover is provided with a fixing rib, and the fixing rib abuts against the outer circumferential surface of the motor mounting base.

[0023] Another embodiment of the air conditioner of the present invention includes the fan module or motor module described in any one of the embodiments of the present invention.

[0024] The air conditioner according to the embodiments of this utility model can reduce the probability of dust entering the motor, improve the sealing and dustproof effect of the motor, and help extend the service life of the motor. Attached Figure Description

[0025] Figure 1 This is a partial exploded view of the motor module and the bottom frame of an embodiment of this utility model.

[0026] Figure 2 This is a partial cross-sectional view of the motor module according to an embodiment of the present invention.

[0027] Figure 3 yes Figure 2 A magnified view of A in the middle.

[0028] Figure 4 This is a schematic diagram of the fan end cover and impeller of the fan module according to an embodiment of the present utility model.

[0029] Figure 5 This is a partial cross-sectional view of the fan end cover and impeller of the fan module according to an embodiment of the present utility model.

[0030] Figure 6 This is a schematic diagram of the motor cover of the fan module in an embodiment of this utility model.

[0031] Figure label:

[0032] 1. Base frame;

[0033] 2. Motor cover; 21. Mounting cavity; 22. Mounting gap; 23. Fixing rib;

[0034] 3. Motor; 31. Motor body; 32. Fan end cover;

[0035] 41. First dustproof part; 411. Convex tooth; 4111. First surface; 4112. Second surface;

[0036] 42. Second dustproof section; 421. First dustproof rib; 422. Second dustproof rib;

[0037] 5. Motor mounting bracket; 51. Edge retainer;

[0038] 6. Impeller; 61. Support shaft. Detailed Implementation

[0039] 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.

[0040] The following is a reference appendix. Figures 1 to 6 This invention describes a fan module, a motor module, and an air conditioner according to embodiments of the present invention.

[0041] like Figures 2 to 4 As shown, the fan module of this utility model embodiment includes: a fan end cover 32 and a motor cover 2. The fan end cover 32 is used to connect the impeller 6. The motor cover 2 is located on the outside of the fan end cover 32 and forms an installation gap 22. The outer wall surface of the fan end cover 32 is provided with a first dustproof part 41, and at least part of the first dustproof part 41 is located within the installation gap 22.

[0042] According to the embodiment of the present invention, the fan module is provided with a first dustproof part 41 on the outer wall of the fan end cover 32. At least part of the first dustproof part 41 is located in the installation gap 22, which can reduce the probability of dust passing through the installation gap 22 and entering the motor 3. This can improve the sealing and dustproof effect of the fan module on the motor 3 and help extend the service life of the motor 3.

[0043] The first dustproof part 41 is spaced apart from the inner wall of the motor cover 2 along the radial direction of the fan end cover 32. It can be understood that the first dustproof part 41 extends radially along the fan end cover 32, and the first dustproof part 41 is spaced apart from the inner wall of the motor cover 2 by a preset distance, so as to avoid the problem of interference between the first dustproof part 41 and the motor cover 2 when the fan end cover 32 rotates.

[0044] It is understandable that, such as Figure 1 As shown, motor 3 can drive the fan end cover 32 to rotate, thereby driving the impeller 6 to rotate synchronously and guide the heat exchange airflow. In other words, motor 3 is an external rotor motor. When the motor body 31 is energized, it can generate a magnetic field force to drive the fan end cover 32 (i.e., the external rotor) to rotate.

[0045] Optionally, such as Figures 3 to 5As shown, the first dustproof part 41 includes multiple protruding teeth 411, which extend circumferentially around the fan end cover 32, and are arranged sequentially along the axial direction of the fan end cover 32. Taking a single protruding tooth 411 as an example, the structure of the protruding tooth 411 is generally annular, and it is arranged circumferentially around the fan end cover 32. Since the multiple protruding teeth 411 are arranged sequentially along the axial direction of the fan end cover 32, the flow path of dust within the installation gap 22 can be extended, thereby reducing the probability of dust entering the motor 3.

[0046] It is understandable that, such as Figure 3 As shown, an installation gap 22 is formed between the outer wall of the fan end cover 32 and the inner wall of the motor cover 2. A tooth groove is formed between two adjacent protrusions 411. Dust entering the installation gap 22 can be stored in the tooth groove to prevent the dust from moving randomly, thereby further improving the dustproof effect of the fan module.

[0047] After the air conditioner has been used for a period of time, the impeller 6 and the fan end cover 32 can be removed together to clean the dust stored in the tooth grooves, so as to ensure the dustproof effect of the first dustproof part 41.

[0048] For example, such as Figure 4 As shown, the first dustproof part 41 and the fan end cover 32 are integrally molded parts, which can reduce the number of parts to be assembled, simplify the assembly process, and reduce production costs.

[0049] Optionally, such as Figure 5 As shown, the tooth 411 has a first surface 4111 facing the impeller 6. The first surface 4111 is perpendicular to the outer wall surface of the fan end cover 32, thereby reducing the probability that dust in the tooth groove will cross the tooth 411 and enter the motor 3.

[0050] like Figure 5 As shown, the protruding tooth 411 has a second surface 4112 facing away from the impeller 6, and the included angle between the first surface 4111 and the second surface 4112 is α, where 10°≤α≤30°. It can be understood that the first surface 4111 and the second surface 4112 are two tooth surfaces of the protruding tooth 411 arranged opposite each other, and the cross-sectional profile of the protruding tooth 411 is generally triangular. Since the included angle α between the first surface 4111 and the second surface 4112 is between 10° and 30°, it facilitates demolding of the protruding tooth 411 during production and improves the dust collection effect of the tooth groove between adjacent protruding teeth 411.

[0051] In some embodiments, such as Figure 3 and Figure 6As shown, the inner wall of the motor cover 2 is provided with a second dustproof part 42, at least part of which is located within the installation gap 22. The first dustproof part 41 and the second dustproof part 42 are spaced apart along the axial direction of the fan end cover 32. It can be understood that the first dustproof part 41 and the second dustproof part 42 work together to block dust, which can further improve the dustproof effect of the fan module.

[0052] For example, the second dustproof part 42 and the motor cover 2 are integrally molded parts, which can reduce the number of parts to be assembled, simplify the assembly process, and reduce production costs.

[0053] like Figure 3 As shown, in a projection plane orthogonal to the axial direction of the fan end cover 32, at least part of the projection of the second dustproof part 42 overlaps with the projection of the first dustproof part 41. It can be understood that the inner diameter of the circle containing the radially inner end of the second dustproof part 42 is smaller than the inner diameter of the circle containing the radially outer end of the first dustproof part 41. This allows the first dustproof part 41 and the second dustproof part 42 to form a maze-like loop, increasing the resistance and difficulty for dust to enter the motor 3 in the mounting cavity 21, further improving the dustproof effect in the mounting gap 22 area.

[0054] like Figures 1 to 3 As shown, another embodiment of the present invention includes a motor module comprising a motor 3 and a motor cover 2. The motor cover 2 is installed on the outside of the motor 3, and the inner wall of the motor cover 2 is provided with a second dustproof part 42.

[0055] According to the embodiment of the present invention, the motor module has a second dustproof part 42 on the inner wall of the motor cover 2. This reduces the probability of dust entering the motor 3, thereby improving the sealing and dustproof effect of the motor 3 and extending its service life.

[0056] like Figure 1 As shown, the motor 3 includes a motor body 31 and a fan end cover 32. The fan end cover 32 is fitted onto the outside of the motor body 31, and the motor body 31 can drive the fan end cover 32 to rotate. A motor cover 2 is disposed between the fan end cover 32 to form an installation gap 22, and a second dustproof part 42 is disposed within the installation gap 22. Therefore, the second dustproof part 42 can reduce the probability of dust passing through the installation gap 22 and entering the motor 3, thereby improving the sealing and dustproof effect of the motor 3.

[0057] Optionally, such as Figure 3 and Figure 6As shown, the second dustproof part 42 includes a first dustproof rib 421 and a second dustproof rib 422, which are spaced apart along the axial direction of the motor 3. This separation of the first dustproof rib 421 and the second dustproof rib 422 along the axial direction of the motor 3 further enhances the dustproof effect of the second dustproof part 42.

[0058] Optionally, such as Figure 3 As shown, the radial gap between either the first dustproof rib 421 or the second dustproof rib 422 and the outer wall of the fan end cover 32 is A, where 1.2mm ≤ A ≤ 2mm. Taking the first dustproof rib 421 as an example, the radial gap A between the radial inner end of the first dustproof rib 421 and the outer wall of the fan end cover 32 is selected between 1.2mm and 2mm. This avoids the problem of collision and interference between the first dustproof rib 421 and the second dustproof rib 422 and the fan end cover 32 when the fan end cover 32 and the impeller 6 rotate, and also reduces the probability of dust entering the mounting cavity 21 through the gap between the first dustproof rib 421 (second dustproof rib 422) and the outer wall of the fan end cover 32.

[0059] For example, A can be 1.2mm, 1.4mm, 1.6mm, 1.8mm, or 2mm.

[0060] Optionally, such as Figure 3 As shown, the first dustproof rib 421 is located on the side of the fan end cover 32 near the impeller 6. The axial clearance between the first dustproof rib 421 and the impeller 6 is B, where 2mm ≤ B ≤ 2.6mm. Because the first dustproof rib 421 and the impeller 6 adopt the above-mentioned axial clearance range, the probability of the impeller 6 colliding with the first dustproof rib 421 during axial swaying can be reduced, and the dustproof effect is good.

[0061] For example, B can be 2mm, 2.2mm, 2.4mm, or 2.6mm.

[0062] Optionally, the fan end cover 32 is the fan end cover 32 of the fan module in this embodiment of the present invention. The outer wall surface of the fan end cover 32 is provided with a first dustproof part 41, which is arranged along the axial direction of the fan end cover 32 between the first dustproof rib 421 and the second dustproof rib 422. It can be understood that the first dustproof rib 421 and the second dustproof rib 422 are respectively arranged on the left and right sides of the first dustproof part 41, thereby further improving the dustproof effect in the area of ​​the installation gap 22.

[0063] like Figure 3As shown, the first dustproof part 41 includes multiple protruding teeth 411, which extend circumferentially around the fan end cover 32, and are arranged sequentially along the axial direction of the fan end cover 32. Because the multiple protruding teeth 411 are arranged sequentially along the axial direction of the fan end cover 32, the flow path of dust within the mounting gap 22 can be extended, thereby reducing the probability of dust entering the motor 3. Furthermore, a groove is formed between adjacent protruding teeth 411, allowing dust entering the mounting gap 22 to be stored within the groove, preventing disordered dust movement and further improving the dustproof effect of the motor module.

[0064] In some embodiments, such as Figure 2 and Figure 3 As shown, the motor module also includes a motor mounting base 5, with the motor body 31 disposed within the mounting cavity 21. The motor mounting base 5 has a retaining edge 51, and at least a portion of the fan end cover 32 is radially disposed between the motor cover 2 and the retaining edge 51. This further extends the path for dust to enter the motor mounting base 5 through the mounting gap 22, thereby reducing the probability of the motor 3 coming into contact with dust.

[0065] like Figure 3 As shown, the right end of the fan end cover 32 extends into the space enclosed by the motor cover 2 and the baffle 51. Thus, the area of ​​the outer wall of the motor cover 2 and the fan end cover 32, as well as the area of ​​the baffle 51 and the inner wall of the fan end cover 32, can prevent dust from entering the motor 3, thereby further improving the dustproof effect of the motor module.

[0066] Optionally, such as Figure 2 As shown, the inner circumferential surface of the motor cover 2 is provided with fixing ribs 23, which abut against the outer circumferential surface of the motor mounting base 5. Because the inner circumferential surface of the motor cover 2 is provided with fixing ribs 23, and the fixing ribs 23 abut against the outer circumferential surface of the motor mounting base 5, the dustproof effect can be improved on the one hand, and the stability of the motor mounting base 5 after installation can be improved on the other hand.

[0067] like Figure 1 As shown, another embodiment of the air conditioner of the present invention includes the fan module or motor module of the present invention.

[0068] According to the embodiments of the present invention, the air conditioner can reduce the probability of dust entering the motor 3, improve the sealing and dustproof effect of the motor 3, and help extend the service life of the motor 3.

[0069] like Figure 1 As shown, the air conditioner also includes a base frame 1, an impeller 6 mounted on the base frame 1, a motor cover 2 connected to the base frame 1 and surrounding the mounting cavity 21, and a motor 3 located inside the mounting cavity 21.

[0070] For example, the impeller 6 and the fan end cover 32 can be manufactured by insert injection molding.

[0071] like Figure 2 and Figure 4 As shown, the impeller 6 has a support shaft 61, which is inserted into the motor body 31. When the impeller 6 rotates, the support shaft 61 can provide auxiliary support for the impeller 6 to improve the stability of the impeller 6 during rotation.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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 fan module, characterized by include: The fan end cover (32) and the motor cover (2) are installed on the outside of the motor (3). The fan end cover (32) is used to connect the impeller (6). The motor cover (2) is located on the outside of the fan end cover (32) and forms an installation gap (22). The outer wall surface of the fan end cover (32) is provided with a first dustproof part (41), and at least part of the first dustproof part (41) is located in the installation gap (22).

2. The fan module of claim 1, wherein, The first dustproof part (41) includes a plurality of protruding teeth (411), which extend circumferentially around the fan end cover (32), and the plurality of protruding teeth (411) are arranged sequentially along the axial direction of the fan end cover (32).

3. The fan module of claim 2, wherein, The protruding tooth (411) has a first surface (4111) facing the impeller (6), and the first surface (4111) is perpendicular to the outer wall surface of the fan end cover (32).

4. The fan module of claim 3, wherein, The protruding tooth (411) has a second surface (4112) facing away from the impeller (6), and the included angle between the first surface (4111) and the second surface (4112) is α, wherein 10°≤α≤30°.

5. The fan module of claim 1, wherein, The inner wall of the motor cover (2) is provided with a second dustproof part (42), at least part of the second dustproof part (42) is provided in the installation gap (22), and the first dustproof part (41) and the second dustproof part (42) are spaced apart along the axial direction of the fan end cover (32).

6. The fan module of claim 5, wherein, In a projection plane orthogonal to the axial direction of the fan end cover (32), at least part of the projection of the second dustproof part (42) overlaps with the projection of the first dustproof part (41).

7. An electric machine module characterized in that, It includes a motor (3) and a motor cover (2), wherein the motor cover (2) is the motor cover (2) according to any one of claims 1-6, and the inner wall surface of the motor cover (2) is provided with a second dustproof part (42).

8. The electric machine module of claim 7, wherein, The motor (3) includes a motor body (31) and a fan end cover (32). The fan end cover (32) is sleeved on the outside of the motor body (31). The motor body (31) can drive the fan end cover (32) to rotate. The motor cover (2) is provided between the fan end covers (32) to form an installation gap (22). The second dustproof part (42) is provided in the installation gap (22).

9. The electric machine module of claim 8, wherein, The second dustproof part (42) includes a first dustproof rib (421) and a second dustproof rib (422), which are spaced apart along the axial direction of the motor (3).

10. The electric machine module of claim 9, wherein, The radial gap between either the first dustproof rib (421) or the second dustproof rib (422) and the outer wall of the fan end cover (32) is A, wherein 1.2mm≤A≤2mm; And / or, the first dustproof rib (421) is provided on the side of the fan end cover (32) near the impeller (6), and the axial gap between the first dustproof rib (421) and the impeller (6) is B, wherein 2mm≤B≤2.6mm.

11. The electric machine module of claim 9, wherein, The outer wall of the fan end cover (32) is provided with a first dustproof part (41), which is located between the first dustproof rib (421) and the second dustproof rib (422) along the axial direction of the fan end cover (32).

12. The electric machine module of claim 11, wherein, The first dustproof part (41) includes a plurality of protruding teeth (411), which extend circumferentially around the fan end cover (32), and the plurality of protruding teeth (411) are arranged sequentially along the axial direction of the fan end cover (32).

13. The electric machine module of claim 8, wherein, The motor module also includes a motor mounting base (5), the motor body (31) is disposed in the mounting cavity (21), the motor mounting base (5) has a retaining edge (51), and at least a portion of the fan end cover (32) is disposed radially between the motor cover (2) and the retaining edge (51).

14. The electric machine module of claim 13, wherein, The inner circumferential surface of the motor cover (2) is provided with a fixing rib (23), and the fixing rib (23) abuts against the outer circumferential surface of the motor mounting base (5).

15. An air conditioner characterized by comprising: It includes the fan module according to any one of claims 1-6, or the motor module according to any one of claims 7-14.

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