Bottom frame assembly and air conditioner

Abstract

The bottom frame assembly comprises a bottom frame, a gland and a dustproof portion, an installation cavity used for containing a motor is defined by the gland and the bottom frame, the first end of the installation cavity in the axial direction of the installation cavity is closed, the second end of the installation cavity in the axial direction of the installation cavity is provided with an opening, the dustproof portion is arranged in the installation cavity, and the dustproof portion is arranged in the installation cavity. And the dustproof part is separated from the inner circumferential surface of the mounting cavity along the radial direction of the mounting cavity to form a dustproof gap. According to the bottom frame assembly, the number of parts needed for fixing the motor is small, the assembling procedure can be simplified, and the dustproof effect is good.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, specifically to a bottom frame assembly 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, the fixed structure of the motor requires a large number of parts, which on the one hand makes the assembly process complex, and on the other hand, makes it easy for dust or other foreign objects from the air conditioner casing to 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 bottom frame assembly that requires fewer parts to fix the motor, which simplifies the assembly process and provides better dust protection.

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

[0006] The bottom frame assembly of this utility model includes: a bottom frame, a pressure cover, and a dustproof part. The pressure cover and the bottom frame enclose a mounting cavity for accommodating a motor. The mounting cavity is closed at a first end along its axial direction and has an opening at a second end along its axial direction. The dustproof part is disposed inside the mounting cavity and is spaced apart from the inner circumferential surface of the mounting cavity along the radial direction of the mounting cavity to form a dustproof gap.

[0007] According to the embodiments of this utility model, the bottom frame assembly can seal the first end of the mounting cavity using only the bottom frame and the pressure cap, thereby blocking external airflow and preventing it from entering the air duct. This simplifies the assembly process and reduces production costs. Furthermore, since the dustproof part is located inside the mounting cavity, it is spaced radially from the inner wall of the mounting cavity to form a dustproof gap. This reduces the probability of dust or other foreign objects entering the motor within the mounting cavity, improving the dustproof effect of the bottom frame assembly.

[0008] In some embodiments, the dustproof part includes a first dustproof part, which is circumferentially arranged around the mounting cavity, one side of the first dustproof part is connected to the pressure cap, and the other side of the first dustproof part extends toward the opening.

[0009] In some embodiments, the dustproof part further includes a second dustproof part, which is arranged circumferentially around the mounting cavity, with one side of the second dustproof part connected to the bottom frame and the other side of the second dustproof part extending toward the opening.

[0010] In some embodiments, the dustproof part further includes a second dustproof part, which is arranged circumferentially around the mounting cavity. One side of the second dustproof part is connected to the bottom frame, and the other side of the second dustproof part extends toward the opening. The first dustproof part and the second dustproof part abut against each other.

[0011] In some embodiments, the outer periphery formed by the first dustproof portion and the second dustproof portion is circular in a projection plane orthogonal to the axial direction of the mounting cavity.

[0012] In some embodiments, the inner wall of the mounting cavity is provided with a positioning groove, which is used to cooperate with the lug of the motor, and the positioning groove is located on the side of the dustproof part away from the opening.

[0013] In some embodiments, the positioning groove includes a first groove and a second groove, the first groove being formed in the pressure cap and the second groove being formed in the bottom frame.

[0014] In some embodiments, the gland has a first baffle, the bottom frame has a second baffle, the first baffle and the second baffle abut against each other to close a first end of the mounting cavity along its axial direction, and one of the first baffle and the second baffle has a through lead-in port that communicates with the mounting cavity.

[0015] In some embodiments, the base frame assembly further includes an impeller and an outer rotor, one end of the outer rotor being connected to the impeller and the other end of the outer rotor extending into the dustproof gap.

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

[0017] According to embodiments of this utility model, the air conditioner can seal the first end of the mounting cavity using only two components: a bottom frame and a pressure cover. This blocks external airflow and prevents it from entering the air duct, thus simplifying the assembly process and reducing production costs. Furthermore, since the dustproof part is located inside the mounting cavity and is spaced radially from the inner wall of the cavity to form a dustproof gap, the probability of dust or other foreign objects entering the motor within the mounting cavity is reduced, improving the air conditioner's dustproof performance. Attached Figure Description

[0018] Figure 1This is a perspective view of the bottom frame assembly of an embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of the bottom frame assembly of an embodiment of this utility model.

[0020] Figure 3 This is a perspective view of the cover of the bottom frame assembly according to an embodiment of the present utility model.

[0021] Figure 4 This is a partial view of the bottom frame of the bottom frame assembly according to an embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the impeller and outer rotor of the bottom frame assembly according to an embodiment of the present invention.

[0023] Figure 6 This is a partial cross-sectional view of the impeller and outer rotor of the bottom frame assembly according to an embodiment of the present invention.

[0024] Figure label:

[0025] 1. Base frame; 11. Mounting cavity; 111. Opening; 112. Positioning groove; 1121. First groove; 1122. Second groove; 12. Second baffle;

[0026] 2. Pressure cap; 21. First baffle; 211. Lead wire port; 22. Dustproof gap;

[0027] 3. Dustproof section; 31. First dustproof section; 32. Second dustproof section;

[0028] 4. Motor; 41. External rotor; 411. Convex tooth; 42. Stator; 421. Lug;

[0029] 5. Impeller; 51. Support shaft. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below, examples of which are illustrated 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 6 This invention describes a bottom frame assembly and an air conditioner according to embodiments of the present invention.

[0032] like Figures 1 to 4As shown, the bottom frame assembly of this utility model embodiment includes: a bottom frame 1, a pressure cover 2, and a dustproof part 3. The pressure cover 2 and the bottom frame 1 enclose a mounting cavity 11 for accommodating a motor 4. The mounting cavity 11 is closed at its first end along its axial direction, and has an opening 111 at its second end along its axial direction. The dustproof part 3 is disposed inside the mounting cavity 11. The dustproof part 3 is spaced apart from the inner circumferential surface of the mounting cavity 11 along the radial direction of the mounting cavity 11 and forms a dustproof gap 22.

[0033] According to the embodiment of this utility model, the bottom frame assembly can seal the first end of the mounting cavity 11 using only two components: the bottom frame 1 and the pressure cover 2. This blocks external airflow and prevents it from entering the air duct, thereby simplifying the assembly process and reducing production costs. Furthermore, since the dustproof part 3 is located inside the mounting cavity 11, and is spaced radially from the inner wall of the mounting cavity 11 to form a dustproof gap 22, the probability of dust or other foreign objects entering the motor 4 inside the mounting cavity 11 is reduced, improving the dustproof effect of the bottom frame assembly.

[0034] It is understandable that, such as Figure 3 As shown, the dustproof gap 22 is used to mate with the outer rotor 41 of the motor 4. (As indicated...) Figure 5 As shown, the bottom frame assembly also includes an impeller 5 and an outer rotor 41. One end of the outer rotor 41 is connected to the impeller 5, and the other end of the outer rotor 41 extends into the dustproof gap 22. The outer rotor 41 is sleeved on the outside of the stator 42 of the motor 4. The stator 42 can drive the outer rotor 41 to rotate through its own magnetic field changes. The outer rotor 41 is fixed relative to the impeller 5 so that the impeller 5 can rotate synchronously.

[0035] Due to the other end of the outer rotor 41 (such as Figure 6 The right end of the outer rotor extends into the dustproof gap 22, thereby extending the movement path of dust into the mounting cavity 11, increasing the resistance to dust entering the mounting cavity 11, and improving the dustproof effect of the motor 4. In other words, the movement path of dust or other foreign objects in the dustproof gap 22 of the bottom frame assembly of this embodiment into the mounting cavity 11 is approximately... In contrast, the movement path of dust or other foreign objects in the bottom frame assembly of the related technology into the mounting cavity 11 is generally "I" shaped. Therefore, the bottom frame assembly of this utility model embodiment has a better dust-blocking effect, which is beneficial to extending the service life of the motor 4.

[0036] For example, the impeller 5 and the outer rotor 41 can be fixed together by insert injection molding.

[0037] Optionally, such as Figure 2 and Figure 3As shown, the dustproof part 3 includes a first dustproof part 31, which is arranged circumferentially around the mounting cavity 11. One side of the first dustproof part 31 is connected to the pressure cover 2, and the other side of the first dustproof part 31 extends towards the opening 111. It can be understood that the first dustproof part 31 is located on the pressure cover 2, thereby reducing the probability of dust entering the motor 4 inside the mounting cavity 11 from the position of the pressure cover 2. Because the first dustproof part 31 is arranged circumferentially around the mounting cavity 11, its dustproof effect is improved.

[0038] like Figure 4 As shown, the dustproof part 3 also includes a second dustproof part 32, which is arranged circumferentially around the mounting cavity 11. One side of the second dustproof part 32 is connected to the bottom frame 1, and the other side of the second dustproof part 32 extends towards the opening 111. It can be understood that the second dustproof part 32 is located on the bottom frame 1, thereby reducing the probability of dust entering the motor 4 from the bottom frame 11. Because the second dustproof part 32 is arranged circumferentially around the mounting cavity 11, its dustproof effect is improved.

[0039] In a specific example, such as Figures 2 to 4 As shown, the dustproof part 3 includes a first dustproof part 31 and a second dustproof part 32. One side of the first dustproof part 31 is connected to the pressure cover 2, and the other side of the first dustproof part 31 extends toward the opening 111. One side of the second dustproof part 32 is connected to the bottom frame 1, and the other side of the second dustproof part 32 extends toward the opening 111. The first dustproof part 31 and the second dustproof part 32 are both arranged circumferentially around the mounting cavity 11, and the first dustproof part 31 and the second dustproof part 32 abut against each other. This can further improve the dustproof effect of the dustproof part 3, so as to reduce the probability of dust entering the motor 4 in the mounting cavity 11 through the gap between the first dustproof part 31 and the second dustproof part 32.

[0040] Both the first dustproof part 31 and the second dustproof part 32 are semi-annular structures. In the projection plane orthogonal to the axis of the mounting cavity 11, the outer perimeter formed by the first dustproof part 31 and the second dustproof part 32 is circular. This allows the shape of the dustproof part 3 to match the shape of the motor 4, resulting in a compact arrangement of the dustproof part 3 and a better dustproof effect.

[0041] In some embodiments, such as Figure 5 and Figure 6As shown, the outer wall surface of the outer rotor 41 is provided with multiple protruding teeth 411, which extend circumferentially around the outer rotor 41, and are arranged sequentially along the axial direction of the outer rotor 41. 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 outer rotor 41. Since multiple protruding teeth 411 are arranged sequentially along the axial direction of the outer rotor 41, the flow path of dust in the dustproof gap 22 can be extended, thereby reducing the probability of dust entering the motor 4.

[0042] It is understandable that a groove is formed between two adjacent protrusions 411, and dust entering the dustproof gap 22 can be stored in the groove to prevent the dust from moving randomly, thereby further improving the dustproof effect of the bottom frame assembly.

[0043] After the air conditioner has been used for a period of time, the impeller 5 and the outer rotor 41 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 31.

[0044] like Figure 5 As shown, the impeller 5 has a support shaft 51, which is inserted into the stator 42. When the impeller 5 rotates, the support shaft 51 can provide auxiliary support for the impeller 5 to improve the stability of the impeller 5 during rotation.

[0045] In some embodiments, such as Figure 3 and Figure 4 As shown, the inner wall of the mounting cavity 11 is provided with a positioning groove 112. The positioning groove 112 is used to cooperate with the lug 421 of the motor 4. The positioning groove 112 is located on the side of the dustproof part 3 away from the opening 111. It can be understood that the positioning groove 112 can constrain the position of the stator 42 of the motor 4 to limit the rotation of the stator 42 relative to the mounting cavity 11, thereby improving the stability of the motor 4 installation. Furthermore, since the positioning groove 112 is located on the side of the dustproof part 3 away from the opening 111, the dustproof effect of the motor 4 can be avoided by setting the positioning groove 112.

[0046] like Figure 3 and Figure 4 As shown, the positioning groove 112 includes a first groove 1121 and a second groove 1122. The first groove 1121 is formed on the pressure cap 2, and the second groove 1122 is formed on the bottom frame 1. It can be understood that there can be multiple lugs 421 on the motor 4. One lug 421 mates with the first groove 1121, and another lug 421 mates with the second groove 1122, thereby further improving the stability of the motor 4 installation.

[0047] In some embodiments, such as Figures 1 to 3As shown, the pressure cap 2 has a first baffle 21 and the bottom frame 1 has a second baffle 12. The first baffle 21 and the second baffle 12 abut against each other to close the first end of the mounting cavity 11 along its axial direction. One of the first baffle 21 and the second baffle 12 is provided with a through lead hole 211, which communicates with the mounting cavity 11.

[0048] It is understood that the first baffle 21 and the second baffle 12 abut against each other to form a motor end cover for sealing the motor 4. Therefore, the bottom frame assembly of this embodiment can eliminate the "motor end cover" component, reducing the number of components required for assembling the bottom frame assembly, thereby simplifying the assembly process and saving material and labor costs.

[0049] like Figure 1 and Figure 3 As shown, the lead-in port 211 is used to pass the motor wire of the motor 4. Since one of the first baffle 21 and the second baffle 12 is provided with a through lead-in port 211, the motor wire can be led out from the closed end of the mounting cavity 11 so that the motor wire can be electrically connected to the electrical control module on the bottom frame 1, making the wiring of the bottom frame assembly more convenient.

[0050] For example, such as Figure 3 As shown, the lead-in port 211 is located on the first baffle 21.

[0051] Another embodiment of the air conditioner of the present invention includes the bottom frame assembly of the present invention.

[0052] According to the embodiments of this utility model, the first end of the mounting cavity 11 can be sealed using only two components: the bottom frame 1 and the pressure cover 2. This blocks external airflow and prevents it from entering the air duct, thereby simplifying the assembly process and reducing production costs. Furthermore, since the dustproof part 3 is located inside the mounting cavity 11, and is spaced radially from the inner wall of the mounting cavity 11 to form a dustproof gap 22, the probability of dust or other foreign objects entering the motor 4 inside the mounting cavity 11 is reduced, improving the dustproof effect of the air conditioner.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 bottom frame assembly, characterized in that, include: The bottom frame (1), the pressure cover (2), and the dustproof part (3) are provided. The pressure cover (2) and the bottom frame (1) enclose a mounting cavity (11) for accommodating the motor (4). The mounting cavity (11) is closed at its first end along its axial direction and has an opening (111) at its second end along its axial direction. The dustproof part (3) is provided inside the mounting cavity (11) and is spaced apart from the inner circumferential surface of the mounting cavity (11) along the radial direction of the mounting cavity (11) to form a dustproof gap (22).

2. The bottom frame assembly according to claim 1, characterized in that, The dustproof part (3) includes a first dustproof part (31), which is arranged circumferentially around the mounting cavity (11). One side of the first dustproof part (31) is connected to the pressure cover (2), and the other side of the first dustproof part (31) extends toward the opening (111).

3. The bottom frame assembly according to claim 1, characterized in that, The dustproof part (3) further includes a second dustproof part (32), which is arranged circumferentially around the mounting cavity (11). One side of the second dustproof part (32) is connected to the bottom frame (1), and the other side of the second dustproof part (32) extends toward the opening (111).

4. The bottom frame assembly according to claim 2, characterized in that, The dustproof part (3) further includes a second dustproof part (32), which is arranged circumferentially around the mounting cavity (11). One side of the second dustproof part (32) is connected to the bottom frame (1), and the other side of the second dustproof part (32) extends toward the opening (111). The first dustproof part (31) and the second dustproof part (32) abut against each other.

5. The bottom frame assembly according to claim 4, characterized in that, In the projection plane orthogonal to the axial direction of the mounting cavity (11), the outer periphery formed by the first dustproof part (31) and the second dustproof part (32) is circular.

6. The bottom frame assembly according to any one of claims 1-5, characterized in that, The inner wall of the mounting cavity (11) is provided with a positioning groove (112), which is used to cooperate with the ear seat (421) of the motor (4). The positioning groove (112) is located on the side of the dustproof part (3) away from the opening (111).

7. The bottom frame assembly according to claim 6, characterized in that, The positioning groove (112) includes a first groove (1121) and a second groove (1122), the first groove (1121) being formed in the cover (2) and the second groove (1122) being formed in the bottom frame (1).

8. The bottom frame assembly according to claim 1, characterized in that, The pressure cap (2) has a first baffle (21), and the bottom frame (1) has a second baffle (12). The first baffle (21) and the second baffle (12) abut against each other to close the first end of the mounting cavity (11) along its axial direction. One of the first baffle (21) and the second baffle (12) is provided with a through lead hole (211), and the lead hole (211) communicates with the mounting cavity (11).

9. The bottom frame assembly according to any one of claims 1-5 and 7-8, characterized in that, The bottom frame assembly also includes an impeller (5) and an outer rotor (41), one end of which is connected to the impeller (5), and the other end of which extends into the dustproof gap (22).

10. An air conditioner, characterized in that, Includes the bottom frame assembly as described in any one of claims 1-9.

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