Fan assembly and air conditioner

Abstract

The utility model discloses a fan assembly and an air conditioner, and relates to the technical field of air conditioners, the fan assembly comprises a volute, a motor cover and a fan, and the volute is provided with a mounting part; the motor cover is connected with the mounting part, and a motor mounting cavity is defined between the motor cover and the mounting part; the fan comprises a motor and a wind wheel, the motor is adaptively mounted in the motor mounting cavity and is provided with a driving shaft connected with the wind wheel, and the driving shaft rotatably penetrates through the motor cover; according to the technical scheme, the sealing performance of the fan assembly can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a fan assembly and an air conditioner. Background Art

[0002] The motor is fixed to the volute, and a sheet metal bracket is often used to support the motor. However, due to the structural shape of the sheet metal bracket, the heat dissipation problem of the motor can be improved to a certain extent. However, it is easy to reduce the sealing performance of the motor and may also cause external contaminants to enter the interior of the motor, affecting the normal operation and maintenance of the motor. Utility Model Content

[0003] The main purpose of the utility model is to provide a fan assembly and an air conditioner, aiming to improve the sealing performance of the fan assembly.

[0004] To achieve the above-mentioned purpose, the fan assembly proposed in the present invention includes:

[0005] a volute having a mounting portion;

[0006] a motor cover connected to the mounting portion, wherein a motor mounting cavity is defined between the motor cover and the mounting portion; and

[0007] The fan comprises a motor and a wind wheel. The motor is adapted to be installed in the motor installation cavity and has a drive shaft connected to the wind wheel. The drive shaft is rotatably arranged through the motor cover.

[0008] In one embodiment, the motor cover includes a cover and a connecting ring provided on the outer periphery of the cover, the motor mounting cavity is defined between the cover and the mounting portion, and the connecting ring is connected to the mounting portion.

[0009] In one embodiment, a positioning structure is provided between the mounting portion and the connecting ring.

[0010] In one embodiment, the positioning structure includes a matching positioning notch and a limiting column, the positioning notch is provided on the periphery of the connecting ring, and the limiting column is provided on the mounting portion; and / or

[0011] The positioning structure includes a limiting ring rib provided on the mounting portion, and the limiting ring rib is adapted to surround the periphery of the connecting ring.

[0012] In one embodiment, the mounting portion and the connecting ring are connected by screw locking;

[0013] And / or, the mounting portion is provided with a receiving groove for partially receiving the motor, and the motor mounting cavity includes the receiving groove.

[0014] In one embodiment, the motor cover is provided with a first heat dissipation hole, the mounting portion is provided with a second heat dissipation hole, and both the first heat dissipation hole and the second heat dissipation hole are connected to the motor mounting cavity.

[0015] In one embodiment, the volute has an air outlet, and the motor cover further includes a waterproof eaves, which is provided on the upper side of the first heat dissipation hole.

[0016] In one embodiment, the projection of the waterproof eaves on the motor cover overlaps with at least a portion of the first heat dissipation holes;

[0017] And / or, the waterproof eaves are arranged to semi-enclose the first heat dissipation hole;

[0018] And / or, the outer surface of the waterproof eaves is a curved surface;

[0019] And / or, the first heat dissipation hole is configured as a semicircular hole, and the arc segment of the semicircular hole protrudes toward the air outlet;

[0020] And / or, the axes of the first heat dissipation hole and the second heat dissipation hole coincide with each other.

[0021] In one embodiment, a buffer pad is provided between the volute and the motor, and between the motor cover and the motor;

[0022] And / or, the motor cover is configured as a plastic cover.

[0023] The utility model also provides an air conditioner, which includes the fan assembly as described above.

[0024] In one embodiment, the air conditioner includes an indoor air conditioner unit and an outdoor air conditioner unit, and the indoor air conditioner unit includes the fan assembly;

[0025] The air conditioner indoor unit and the air conditioner outdoor unit are connected via a refrigerant hose assembly, and the refrigerant hose assembly is pre-filled with refrigerant; and / or, the compressor of the air conditioner is arranged in the air conditioner indoor unit; and / or, a movable wheel is provided at the bottom of the air conditioner indoor unit.

[0026] In the technical solution of the present invention, a motor mounting cavity is defined by the connection between the motor cover and the mounting portion, and the motor of the fan is installed in the motor mounting cavity, which not only ensures the stable assembly of the motor on the volute, but also reduces the risk of air leakage at the mounting portion, and helps to improve the sealing performance of the fan assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0028] Figure 1 A structural schematic diagram of an embodiment of a fan assembly provided by the utility model;

[0029] Figure 2 for Figure 1 Front view of the blower assembly;

[0030] Figure 3 for Figure 2 A cross-sectional view of the blower assembly cut along the AA section line;

[0031] Figure 4 for Figure 1 Exploded diagram of the blower assembly;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure of the motor cover;

[0033] Figure 6 for Figure 5 Cross-sectional view of the motor cover cut along the BB section line.

[0034] Description of Figure Numbers:

[0035] 10. Volute; 101. Air outlet; 11. Mounting portion; 111. Limiting column; 112. Second heat dissipation hole; 12. Motor mounting cavity; 121. Receiving slot;

[0036] 20. Motor cover; 21. Cover; 211. First heat dissipation hole; 22. Connecting ring; 221. Positioning notch; 23. Waterproof eaves;

[0037] 30. Fan; 31. Motor; 311. Drive shaft;

[0038] 40. Screws.

[0039] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The motor is fixed to the volute, and a sheet metal bracket is often used to support the motor. However, due to the structural shape of the sheet metal bracket, the heat dissipation problem of the motor can be improved to a certain extent. However, it is easy to reduce the sealing performance of the motor and may also cause external contaminants to enter the interior of the motor, affecting the normal operation and maintenance of the motor.

[0044] In order to solve this technical problem, the utility model proposes a fan assembly.

[0045] See also Figures 1 to 6 In one embodiment of the present invention, the fan assembly includes a volute 10, a motor cover 20 and a fan 30, the volute 10 has a mounting portion 11; the motor cover 20 is connected to the mounting portion 11, and a motor mounting cavity 12 is defined between the motor cover 20 and the mounting portion 11; the fan 30 includes a motor 31 and a wind wheel, the motor 31 is adapted to be mounted in the motor mounting cavity 12, and has a drive shaft 311 connected to the wind wheel, and the drive shaft 311 can be rotatably passed through the motor cover 20; thereby, it helps to improve the sealing performance of the fan assembly.

[0046] In the technical solution of the present invention, a motor mounting cavity 12 is defined by the connection between the motor cover 20 and the mounting portion 11, and the motor 31 of the fan 30 is installed in the motor mounting cavity 12, which not only ensures the stable assembly of the motor 31 on the volute 10, but also reduces the risk of air leakage at the mounting portion 11, and helps to improve the sealing performance of the fan assembly.

[0047] Specifically, the motor cover 20 covers the motor 31 to protect the motor 31. The motor cover 20 is connected to the mounting portion 11. On the one hand, it defines a motor mounting cavity 12 and is provided with an axial hole for the drive shaft 311 to pass through, so as to constrain the movement of the motor 31 on the volute 10, thereby improving the assembly stability of the motor 31 and the connection reliability between the motor 31 and the wind wheel; on the other hand, the motor cover 20 covers the mounting portion 11 while covering the motor 31, thereby reducing the air leakage area, conveniently blocking the air diffusing toward the mounting portion 11, increasing the air output of the fan assembly, and improving the sealing performance of the fan assembly.

[0048] The connection methods between the motor cover 20 and the mounting portion 11 include but are not limited to screw 40 connection, screw-on connection, and threaded connection. The connection methods between the motor 31 and the motor mounting cavity 12 include but are not limited to interference fit and snap connection.

[0049] See also Figure 4 and Figure 5 In an embodiment of the present utility model, the motor cover 20 includes a cover 21 and a connecting ring 22 provided on the outer periphery of the cover 21, the motor mounting cavity 12 is defined between the cover 21 and the mounting portion 11, and the connecting ring 22 is connected to the mounting portion 11, wherein the cover 21 and the connecting ring 22 can be integrally formed, which is convenient for processing and forming the motor cover 20, and a reinforcing structure such as reinforcing ribs can be provided between the cover 21 and the connecting ring 22 to improve the overall structural strength of the motor cover 20; the cover 21 protrudes away from the mounting portion 11 relative to the connecting ring 22, which is convenient for forming the motor mounting cavity 12.

[0050] The connection methods between the connecting ring 22 and the mounting portion 11 include, but are not limited to, screw 40 connection, turn-on connection, and threaded connection.

[0051] Furthermore, in an embodiment of the present invention, a positioning structure is provided between the mounting portion 11 and the connecting ring 22 , and the positioning structure is used to assist in the alignment of the mounting portion 11 and the connecting ring 22 , thereby improving the assembly efficiency of the motor cover 20 and the volute 10 .

[0052] In one embodiment, the positioning structure includes a matching positioning notch 221 and a limiting post 111. The positioning notch 221 is provided on the periphery of the connecting ring 22, and the limiting post 111 is provided on the mounting portion 11. When the motor cover 20 is close to the mounting portion 11, the positioning notch 221 and the limiting post 111 engage with each other to form a pre-positioning between the motor cover 20 and the mounting portion 11, thereby facilitating the continued fastening of the motor cover 20 and the mounting portion 11 and completing the assembly of the motor cover 20 and the motor 31 on the volute 10. However, in other embodiments, the positioning notch 221 is formed on the mounting portion 11, and the limiting post 111 is provided on the periphery of the connecting ring 22.

[0053] In one embodiment, the positioning structure includes a retaining ring rib provided on the mounting portion 11. The retaining ring rib is adapted to surround the periphery of the connecting ring 22, so that the motor cover 20 is positioned inside the retaining ring rib, thereby facilitating the secure connection between the motor cover 20 and the mounting portion 11. However, in other embodiments, the connecting ring 22 is provided with a retaining ring groove that matches the retaining ring rib.

[0054] In one embodiment, the positioning structure includes matching positioning notches 221 and limiting columns 111, and limiting ring ribs provided on the mounting portion 11, which help to further improve the alignment accuracy of the motor cover 20 and the mounting portion 11 and improve the assembly efficiency of the motor cover 20 and the mounting portion 11.

[0055] See also Figure 4 and Figure 5 In an embodiment of the present invention, the mounting portion 11 and the connecting ring 22 are connected by screws 40. It is understood that a first connecting hole and a second connecting hole are respectively provided on the connecting ring 22 and the mounting portion 11, and the second connecting hole is configured as an internal threaded hole. The screw 40 passes through the first connecting hole and the second connecting hole in sequence and is threadedly connected to the second connecting hole; alternatively, the screw 40 passes through the first connecting hole and the second connecting hole in sequence and is connected to a matching nut. In this embodiment, three screws 40 are provided and distributed in a triangular pattern, ensuring a high connection tightness with a smaller number of fasteners. However, in other embodiments, the mounting portion 11 and the connecting ring 22 are connected by a press buckle and a buckle hole.

[0056] See also Figure 4In an embodiment of the present invention, the mounting portion 11 is provided with a receiving groove 121 for partially receiving the motor 31, and the motor mounting cavity 12 includes the receiving groove 121. In this way, the motor 31 can be partially inserted into the receiving groove 121. At this time, the receiving groove 121 plays a positioning role for the motor 31. When the positioning structure plays a positioning role on the motor cover 20 and the mounting portion 11, it is convenient for the drive shaft 311 of the motor 31 to quickly pass through the shaft hole of the motor cover 20, thereby improving the assembly efficiency of the motor cover 20. At the same time, it helps to reduce the volume of the motor cover 20, reduce the material used in the motor cover 20, and improve the structural stability of the motor cover 20.

[0057] See also Figure 3 and Figure 4 In an embodiment of the present invention, the motor cover 20 is provided with a first heat dissipation hole 211, and the mounting portion 11 is provided with a second heat dissipation hole 112. The first heat dissipation hole 211 and the second heat dissipation hole 112 are both connected to the motor mounting cavity 12. With this arrangement, the heat generated when the motor 31 is running is dissipated by the first heat dissipation hole 211 and the second heat dissipation hole 112, which helps to ensure the heat dissipation effect of the motor 31. In addition, combined with the shielding or covering of the mounting portion 11 and the motor 31 by the motor cover 20, it also helps to reduce the air leakage area and at the same time improve the overall structural strength of the fan assembly.

[0058] Multiple first and second heat dissipation holes 211, 112 can be provided, evenly and spaced apart around the circumference of the drive shaft 311. This increases the heat dissipation area and improves the heat dissipation efficiency of the motor 31. This also provides for the provision of a waterproof eave 23, preventing splashing water from entering adjacent first heat dissipation holes 211 due to the small spacing between adjacent first heat dissipation holes 211, thereby improving the reliability of the safe operation of the motor 31. Furthermore, the dimensions of both the first and second heat dissipation holes 211, 112, are minimized to minimize air leakage while ensuring effective heat dissipation.

[0059] See also Figure 4 and Figure 5 In an embodiment of the present invention, the volute 10 has an air outlet 101, and the motor cover 20 further includes a waterproof eaves 23, which is provided on the upper side of the first heat dissipation hole 211. It can be understood that the air outlet 101 of the volute 10 is located above the motor cover 20. By providing the waterproof eaves 23 on the upper side of the first heat dissipation hole 211, water flowing into the volute 10 from the air outlet 101 will be blocked by the waterproof eaves 23 when passing through the motor cover 20, thereby reliably preventing water from entering the motor mounting cavity 12 through the first heat dissipation hole 211, thereby improving the safety of the motor 31, and reducing the air leakage area to a certain extent, thereby increasing the air output at the air outlet 101.

[0060] Specifically, in an embodiment of the present invention, the projection of the waterproof eaves 23 on the motor cover 20 overlaps with at least a portion of the first heat dissipation holes 211. This helps further reduce the risk of water splashing into the first heat dissipation holes 211 due to water impacting the waterproof eaves 23, or the risk of splashing water entering adjacent first heat dissipation holes 211 due to two waterproof eaves 23 being too close together, thereby improving the water-blocking effect of the waterproof eaves 23. Furthermore, it is sufficient to ensure that a heat dissipation outlet connected to the first heat dissipation holes 211 is formed between the waterproof eaves 23 and the first heat dissipation holes 211; the degree of overlap between the projection of the waterproof eaves 23 on the motor cover 20 and the first heat dissipation holes 211 is not limited.

[0061] Specifically, in an embodiment of the present invention, the waterproof eaves 23 is semi-enclosed relative to the first heat dissipation hole 211 to increase the shielding effect of the first heat dissipation hole 211, thereby reducing the possibility of water entering the motor mounting cavity 12 through the first heat dissipation hole 211, and improving the safety of use of the motor 31; at the same time, because the waterproof eaves 23 is located above the first heat dissipation hole 211 and is semi-enclosed, the heat dissipation outlet formed between the waterproof eaves 23 and the first heat dissipation hole 211 is set downward, ensuring the heat dissipation capacity of the motor 31.

[0062] Specifically, in an embodiment of the present invention, the outer surface of the waterproof eaves 23 is a curved surface, so that water can flow smoothly downward along the outer surface of the waterproof eaves 23, which helps to reduce the impact force; however, in other embodiments, the outer surface of the waterproof eaves 23 is composed of two inclined surfaces set at an angle, and the formed sharp angle is set toward the air outlet 101.

[0063] Specifically, in an embodiment of the present invention, the first heat dissipation hole 211 is configured as a semicircular hole, and the arc segment of the semicircular hole protrudes toward the air outlet 101. In this way, the waterproof eaves 23 are semi-enclosed relative to the first heat dissipation hole 211, which can not only ensure the heat dissipation effect of the motor 31, but also reduce the water from the air outlet 101 entering the motor installation cavity 12, thereby ensuring the safe use of the motor 31. At the same time, due to the small size of the first heat dissipation hole 211, combined with the shielding of the waterproof eaves 23, the air leakage area is greatly reduced, which helps to increase the air output of the air outlet 101.

[0064] Specifically, in an embodiment of the present invention, the axes of the first heat dissipation hole 211 and the second heat dissipation hole 112 coincide with each other, thereby shortening the heat dissipation path, avoiding heat accumulation in the motor mounting cavity 12 , and improving heat dissipation efficiency.

[0065] Specifically, in an embodiment of the present invention, cushioning pads are provided between the volute 10 and the motor 31, and between the motor cover 20 and the motor 31. These cushioning pads, on the one hand, reduce vibration transmitted toward the motor cover 20 and volute 10 during operation of the motor 31, thereby reducing noise during operation of the fan assembly. On the other hand, the provision of the cushioning pads increases friction between the motor 31 and the volute 10 and motor cover 20, thereby helping to improve the installation stability of the motor 31 within the motor mounting cavity 12. The cushioning pads may be configured as rubber pads.

[0066] Specifically, in an embodiment of the present invention, the motor cover 20 is configured as a plastic cover, and the plastic material may be PVC, PET, PP, PS, PET-G, etc.; plastic is easy to process and has a low cost, and the overall weight is lower than that of metal. In this way, it can cooperate with the volute 10 to form a sealed and waterproof motor mounting cavity 12 to protect the motor 31, and can also reduce the overall cost and total weight of the fan assembly.

[0067] The present invention also proposes an air conditioner, which includes a fan assembly. The specific structure of the fan assembly refers to the above-mentioned embodiment. Since this air conditioner adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0068] The air conditioner includes an indoor air conditioner unit and an outdoor air conditioner unit, wherein the indoor air conditioner unit includes the fan assembly; the indoor air conditioner unit and the outdoor air conditioner unit are connected via a refrigerant hose assembly, and the refrigerant hose assembly is pre-filled with refrigerant; specifically, the air conditioner of the present invention can be a split-type air conditioner that is easy for users to install individually, and it uses a refrigerant hose assembly to connect the indoor heat exchanger of the indoor air conditioner unit and the outdoor heat exchanger of the outdoor air conditioner unit, and refrigerant is injected into the refrigerant circuit before the equipment leaves the factory. In this way, when the user installs the equipment by themselves, they only need to fix the indoor air conditioner unit and the outdoor air conditioner unit separately, without the need to assemble the refrigerant pipe and add refrigerant, thereby reducing the difficulty of installation and enabling personal installation by the user. However, the present design is not limited to this. In other embodiments, the air conditioner of the present invention can also be an ordinary split air conditioner.

[0069] Optionally, in an embodiment of the present invention, the compressor of the air conditioner is arranged in the indoor unit of the air conditioner, which can reduce the weight of the outdoor unit of the air conditioner, thereby facilitating the installation of the outdoor unit of the air conditioner; accordingly, the compressor is also provided with a noise reduction structure to ensure low-noise operation of the indoor unit of the air conditioner.

[0070] Optionally, in an embodiment of the present invention, movable wheels are provided at the bottom of the air-conditioning indoor unit to facilitate the movement and transportation of the air-conditioning indoor unit; accordingly, a locking structure is provided on the air-conditioning indoor unit to constrain the rotation of the movable wheels to ensure stable operation of the air-conditioning indoor unit.

[0071] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fan assembly, characterized in that: include: a volute having a mounting portion; a motor cover connected to the mounting portion, wherein a motor mounting cavity is defined between the motor cover and the mounting portion; as well as The fan comprises a motor and a wind wheel. The motor is adapted to be installed in the motor installation cavity and has a drive shaft connected to the wind wheel. The drive shaft is rotatably arranged through the motor cover.

2. The fan assembly according to claim 1, wherein: The motor cover includes a cover and a connecting ring provided on the outer periphery of the cover. The motor mounting cavity is defined between the cover and the mounting portion, and the connecting ring is connected to the mounting portion.

3. The fan assembly according to claim 2, wherein: A positioning structure is provided between the mounting portion and the connecting ring.

4. The fan assembly according to claim 3, wherein: The positioning structure includes a matching positioning notch and a limiting column, the positioning notch is provided on the periphery of the connecting ring, and the limiting column is provided on the mounting portion; and / or The positioning structure includes a limiting ring rib provided on the mounting portion, and the limiting ring rib is adapted to surround the periphery of the connecting ring.

5. The fan assembly according to claim 2, wherein: The mounting portion and the connecting ring are connected by screw locking; And / or, the mounting portion is provided with a receiving groove for partially receiving the motor, and the motor mounting cavity includes the receiving groove.

6. The fan assembly according to claim 1, wherein: The motor cover is provided with a first heat dissipation hole, and the mounting portion is provided with a second heat dissipation hole. Both the first heat dissipation hole and the second heat dissipation hole are connected to the motor mounting cavity.

7. The fan assembly according to claim 6, wherein: The volute has an air outlet, and the motor cover further includes a waterproof eaves, which is arranged on the upper side of the first heat dissipation hole.

8. The fan assembly according to claim 7, wherein: The projection of the waterproof eaves on the motor cover overlaps with at least a portion of the first heat dissipation holes; And / or, the waterproof eaves are arranged to semi-enclose the first heat dissipation hole; And / or, the outer surface of the waterproof eaves is a curved surface; And / or, the first heat dissipation hole is configured as a semicircular hole, and the arc segment of the semicircular hole protrudes toward the air outlet; And / or, the axes of the first heat dissipation hole and the second heat dissipation hole coincide with each other.

9. The fan assembly according to claim 1, wherein: Buffer pads are provided between the volute and the motor, and between the motor cover and the motor; And / or, the motor cover is configured as a plastic cover.

10. An air conditioner, characterized in that: The invention comprises a fan assembly according to any one of claims 1 to 9.

11. The air conditioner according to claim 10, wherein: The air conditioner comprises an indoor air conditioner unit and an outdoor air conditioner unit, and the indoor air conditioner unit comprises the fan assembly; The air conditioner indoor unit and the air conditioner outdoor unit are connected via a refrigerant hose assembly, and the refrigerant hose assembly is pre-filled with refrigerant; And / or, the compressor of the air conditioner is arranged in the air conditioner indoor unit; and / or, the bottom of the air conditioner indoor unit is provided with a moving wheel.

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