Fan assembly and air conditioner

Abstract

The utility model discloses a fan assembly and an air conditioner, and relates to the technical field of fans. The fan assembly comprises a wind wheel, a motor and a support, the motor is in driving connection with the wind wheel, and therefore the motor can drive the wind wheel to rotate. The mounting feet of the motor are fixedly connected to the outer side wall of the shell and fixedly connected with the fixing base of the support, so that the relative position between the motor and the support is determined, and the stability and reliability of connection between the motor and the support are ensured. As the shell is inserted into the first ventilation hole and is spaced from the hole wall of the first ventilation hole, a channel for airflow to pass through can be formed between the shell and the first ventilation hole, the flow speed of the airflow can be increased when the airflow passes through a narrow space, the surface convection heat resistance of the shell can be reduced, heat generated by the motor can be effectively taken away, and the service life of the motor is prolonged. And the temperature rise of the motor is reduced, the heating value is reduced, the fault condition of the motor is reduced, and the safety and reliability of the motor during operation are improved.

Description

Technical Field

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

[0002] The outdoor unit of a split air conditioner is placed outdoors. A fan and a heat exchanger are provided inside the outdoor unit, and the fan is usually arranged in front of the heat exchanger. When the fan works, it drives the air flow to pass through the heat exchanger and makes the air flow blow out from the front of the fan. When the air duct is blocked due to reasons such as icing or dust accumulation of the heat exchanger, it is difficult for the air flow to pass through the heat exchanger, which will cause an increase in the power of the motor, an increase in heat generation, and it is easy to have failures. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a fan assembly, which can improve the heat dissipation efficiency of the motor, reduce heat generation, and reduce the occurrence of failures.

[0004] The utility model also provides an air conditioner with the above fan assembly.

[0005] The fan assembly according to the first aspect embodiment of the utility model includes: a wind wheel;

[0006] A motor, drivingly connected to the wind wheel, the motor includes a housing and mounting feet, and the mounting feet are fixedly connected to the outer side wall of the housing;

[0007] A bracket, including a fixed seat, the fixed seat is provided with a first ventilation hole, the housing is arranged in the first ventilation hole and is spaced from the hole wall of the first ventilation hole, and the mounting feet are fixedly connected to the fixed seat.

[0008] The fan assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0009] By arranging the motor to be drivingly connected to the wind wheel, the mounting feet of the motor are fixedly connected to the outer side wall of the housing, and the mounting feet are fixedly connected to the fixed seat of the bracket, so as to determine the relative position between the motor and the bracket, and ensure the stability and reliability of the connection between the motor and the bracket. Since the housing is inserted into the first ventilation hole and is spaced from the hole wall of the first ventilation hole, a channel for the air flow to pass through can be formed between the housing and the first ventilation hole. When the air flow passes through the narrow space, the flow rate will increase, which can reduce the convective heat resistance on the surface of the housing, thereby effectively taking away the heat generated by the motor, reducing the temperature rise of the motor, reducing heat generation, reducing the occurrence of failures of the motor, and improving the safety and reliability during the operation of the motor.

[0010] According to some embodiments of the present utility model, the minimum distance between the outer shell and the pore wall of the first ventilation hole is L1, satisfying: 2 mm ≤ L1 ≤ 8 mm.

[0011] According to some embodiments of the present utility model, the blower includes a hub connected to the output end of the motor. Along the axial direction of the motor, the minimum distance between the end of the hub and the end of the outer shell is L2, satisfying: 2 mm ≤ L2 ≤ 10 mm.

[0012] According to some embodiments of the present utility model, the maximum outer diameter of the outer shell is D1, and the blower includes a hub connected to the output end of the motor. The maximum outer diameter of the hub is D2, satisfying: -3 mm ≤ D1 - D2 ≤ 3 mm.

[0013] According to some embodiments of the present utility model, the blower includes a hub connected to the output end of the motor, and the hub is provided with a second ventilation hole that penetrates through both ends of the hub along the axial direction of the motor.

[0014] According to some embodiments of the present utility model, there are a plurality of the second ventilation holes, and they are arranged at intervals along the circumferential direction of the hub.

[0015] According to some embodiments of the present utility model, the bracket includes a frame body. The frame body is provided with a through hole. The fixing seat includes a fixing plate and two connecting plates. The two connecting plates are arranged at intervals on the frame body and are respectively located on both sides of the through hole. Both sides of the fixing plate are respectively connected to the two connecting plates, and the fixing plate is arranged at an interval from the frame body. The fixing plate is provided with the first ventilation hole, and the first ventilation hole is communicated with the through hole.

[0016] According to some embodiments of the present utility model, the two connecting plates are arranged at intervals in a first direction. At least one end of the fixing seat in a second direction is provided with an opening, and the opening communicates the first ventilation hole and the through hole. The second direction is perpendicular to the first direction.

[0017] According to some embodiments of the present utility model, there are a plurality of the mounting feet, and they are arranged at intervals along the circumferential direction of the outer shell. The plurality of mounting feet are connected to one end of the fixing seat close to the wind wheel.

[0018] The air conditioner according to the second aspect embodiment of the present utility model includes the blower assembly described in the above embodiments.

[0019] The air conditioner according to the embodiment of the present utility model has at least the following beneficial effects:

[0020] By adopting the fan assembly of the first aspect embodiment, the fan assembly is driven and connected by setting a motor and a wind wheel. The mounting feet of the motor are fixedly connected to the outer side wall of the housing, and the mounting feet and the fixed seat of the bracket are fixedly connected, thereby determining the relative position between the motor and the bracket and ensuring the stability and reliability of the connection between the motor and the bracket. Since the housing is inserted into the first ventilation hole and is spaced from the hole wall of the first ventilation hole, a channel for the air flow to pass through can be formed between the housing and the first ventilation hole. When the air flow passes through the narrow space, the flow rate will increase, which can reduce the convective heat resistance on the surface of the housing, thereby effectively taking away the heat generated by the motor, reducing the temperature rise of the motor, reducing the heat generation, so as to reduce the occurrence of motor failures and improve the safety and reliability during the operation of the motor.

[0021] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0022] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0023] Figure 1 is a schematic structural diagram of a fan assembly according to an embodiment of the present utility model;

[0024] Figure 2 is an exploded view of a fan assembly according to an embodiment of the present utility model;

[0025] Figure 3 is a cross-sectional view of a fan assembly according to an embodiment of the present utility model;

[0026] Figure 4 is Figure 3 an enlarged view of part A in

[0027] Figure 5 is a schematic diagram of the air flow direction of an outdoor unit in a normal working state according to an embodiment of the present utility model;

[0028] Figure 6 is a schematic diagram of the air flow direction of an outdoor unit in an abnormal working state according to an embodiment of the present utility model.

[0029] Reference Signs:

[0030] Fan assembly 1000;

[0031] Wind wheel 100; Hub 110; Second ventilation hole 111; Connection part 112; Outer ring part 113; Blades 120;

[0032] Motor 200; Housing 210; Mounting feet 220; Card slot 221; Counterbore 222; Rotor 240; Stator 250; Shaft 260;

[0033] Bracket 300; fixed seat 310; first ventilation hole 311; fixed plate 312; connecting plate 313; mounting hole 314; opening 315; frame body 320; through hole 321; weight reduction hole 322;

[0034] Heat exchanger 400. Specific embodiments

[0035] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0039] Refer to Figure 1 and Figure 2As shown in the figure, a blower assembly 1000 according to an embodiment of the present utility model can be used in an air conditioner, for example, in the outdoor unit of an air conditioner. The blower assembly 1000 according to the embodiment of the present utility model includes a wind wheel 100, a motor 200, and a bracket 300. The wind wheel 100 includes a hub 110 and a plurality of fan blades. The plurality of fan blades are connected to the outer sidewall of the hub 110 and are arranged at intervals along the circumferential direction of the hub 110. The output end of the motor 200 is drivingly connected to the hub 110, thereby driving the wind wheel 100 to rotate. The motor 200 includes a housing 210 and mounting feet 220. The housing 210 is cylindrical and hollow inside. The inside of the housing 210 is used to mount structures such as a rotor 240 and a stator 250, thereby playing a role in protecting the rotor 240 and the stator 250. The mounting feet 220 are fixedly connected to the outer sidewall of the housing 210, and the fixed connection method can be fastener connection, snap connection, welding, bonding, integral molding, etc. The bracket 300 includes a fixed seat 310. The fixed seat 310 is provided with a first ventilation hole 311. The housing 210 is disposed in the first ventilation hole 311, and the outer sidewall of the housing 210 and the hole wall of the first ventilation hole 311 are spaced apart. The mounting feet 220 and the fixed seat 310 are fixedly connected to determine the relative position between the motor 200 and the bracket 300, and improve the stability and reliability of the connection between the motor 200 and the bracket 300.

[0040] Referring to Figure 5 as shown in the figure, Figure 5 FIG. shows a schematic diagram of the air flow direction when the outdoor unit of this embodiment is in a normal working state. Figure 5 The arrows in the figure indicate the direction of the air flow. When the motor 200 according to the embodiment of the present utility model is applied to the outdoor unit of an air conditioner, the blower assembly 1000 is located in front of the heat exchanger 400. When the motor 200 is working normally, it drives the air flow to flow from back to front, and after passing through the heat exchanger 400, it blows out from the front of the wind wheel 100, which helps the heat exchanger 400 to exchange heat with the air. Referring to Figure 6 as shown in the figure, Figure 6 FIG. shows a schematic diagram of the air flow direction when the outdoor unit of this embodiment is in an abnormal working state. Figure 6 The arrows in the figure indicate the direction of the air flow. The abnormal working state of the outdoor unit is that when the outdoor ambient temperature is relatively low, for example, in rainy or snowy weather, it may cause the heat exchanger 400 to freeze, or the heat exchanger 400 may be blocked due to dust accumulation or other reasons, that is, the air duct is blocked, and the air flow is difficult to pass through the heat exchanger 400. And at this time, the blower assembly 1000 will continue to work, which will cause the air flow path to change. The air flow enters from the middle of the wind wheel 100 and exits from the side of the wind wheel 100. At this time, the wind resistance increases, which will cause the power of the motor 200 to increase and the heat generation to increase.

[0041] It can be understood that, in order to improve the problem of excessive heat generation of the motor 200, by adopting the above solution, since the outer shell 210 is inserted into the first ventilation hole 311 and is spaced from the hole wall of the first ventilation hole 311, a channel for air flow to pass through can be formed between the outer shell 210 and the first ventilation hole 311. When the air flow passes through a narrow space, the flow rate will increase, and the convective heat resistance on the surface of the outer shell 210 can be reduced. Therefore, when the heat exchanger is blocked due to icing, dust accumulation, etc., resulting in an increase in the power of the motor 200, the temperature rise of the motor 200 can be effectively reduced, the heat generation can be reduced, so as to reduce the occurrence of faults of the motor 200.

[0042] Referring Figure 3 and Figure 4 As shown, in the embodiment of the present utility model, the minimum distance between the outer shell 210 and the hole wall of the first ventilation hole 311 is L1, satisfying: 2 mm ≤ L1 ≤ 8 mm. For example, the value of L1 can be 2 mm, 3 mm, 4 mm, 6 mm, 8 mm. It can be understood that when L1 is less than 2 mm, the distance between the outer shell 210 and the hole wall of the first ventilation hole 311 is too close, that is, the ventilation cross-section is reduced and the wind resistance is increased, resulting in a reduction in the air flow passing through the first ventilation hole 311, and it is difficult to play the role of reducing the temperature of the motor 200. When L1 is greater than 8 mm, the distance between the outer shell 210 and the first ventilation hole 311 is too large. Although the resistance of the air flow passing through is reduced, the wind speed is reduced, and it is difficult to effectively take away the heat on the surface of the motor 200. Therefore, by reasonably designing the value of L1 between 2 mm and 8 mm, the air inlet resistance can be reduced, and the air flow speed can be increased, so as to take away the heat generated by the motor 200, effectively reduce the temperature rise of the motor 200, and improve the safety of the motor 200 during operation.

[0043] Referring Figure 4 As shown, in the embodiment of the present utility model, along the axial direction of the motor 200, the minimum distance between one end of the hub 110 facing the motor 200 and one end of the outer shell 210 facing the hub 110 is L2, satisfying: 2 mm ≤ L2 ≤ 10 mm. For example, the value of L2 can be 2 mm, 3 mm, 4 mm, 6 mm, 8 mm, 10 mm. It can be understood that when L2 is less than 2 mm, the distance between the hub 110 and the outer shell 210 is too close. Since there is relative rotation between the hub 110 and the outer shell 210, when the distance is too close, it is easy to cause contact between the hub 110 and the outer shell 210 due to vibration, assembly accuracy, etc., resulting in frictional wear and noise, increasing the abnormal noise during the operation of the fan assembly 1000 and poor user experience. When L2 is greater than 10 mm, the gap between the hub 110 and the outer shell 210 is too large. Therefore, when the air flow passes through the gap between the hub 110 and the outer shell 210, eddy current losses are easily generated, disturbing the flow path of the air flow, thereby reducing the air flow speed, and it is difficult to effectively dissipate heat from the motor 200, reducing the safety of the motor 200.

[0044] Therefore, reasonably designing the value of L2 within the range of 2 mm to 10 mm can effectively avoid the friction and wear caused by the contact between the hub 110 and the housing 210, reduce the generation of noise, and improve the service life of the motor 200. At the same time, it can also reduce the eddy current loss generated when the air flow passes through the gap between the hub 110 and the housing 210, thereby further increasing the wind speed to carry away the heat generated by the motor 200, effectively reducing the temperature rise of the motor 200, and improving the safety during the operation of the motor 200.

[0045] Refer to Figure 4 As shown, in the embodiment of the present invention, the outer side of the housing 210 is cylindrical, the maximum outer diameter of the housing 210 is D1, the outer side of the hub 110 is also cylindrical, and the maximum outer diameter of the hub 110 is D2, satisfying: -3 mm ≤ D1 - D2 ≤ 3 mm. For example, the difference between D1 - D2 is -3 mm, -2 mm, -1 mm, 0 mm, 1 mm, 2 mm, 3 mm. It can be understood that the purpose of the above size limitation is to ensure that the maximum outer diameter D1 of the housing 210 and the maximum outer diameter D2 of the hub 110 are close in size. When the difference between D1 - D2 is less than -3 mm, that is, the maximum outer diameter D1 of the housing 210 is too small and the maximum outer diameter D2 of the hub 110 is too large. When the motor 200 is working normally, the air flow is likely to impact on the end of the hub 110 after passing through the housing 210, resulting in air flow disorder, increased eddy current loss, reduced wind speed, and decreased heat dissipation capacity of the motor 200. When the difference between D1 - D2 is greater than 3 mm, that is, the maximum outer diameter D1 of the housing 210 is too large and the maximum outer diameter D2 of the hub 110 is too small. When the heat exchanger 400 is blocked, the air flow enters from the middle of the wind wheel 100, and the air flow is likely to directly impact on the end of the housing 210 after passing through the hub 110, which will also result in air flow disorder, increased eddy current loss, reduced wind speed, and decreased heat dissipation capacity of the motor 200.

[0046] Therefore, by reasonably designing the difference between D1 - D2 within the range of -3 mm to 3 mm, it can ensure that the maximum outer diameter D1 of the housing 210 and the maximum outer diameter D2 of the hub 110 are close in size, which is beneficial for the air flow to pass through the hub 110 and the housing 210, reduce the situation where the air flow directly impacts on the end of the hub 110 or the end of the housing 210, thereby reducing air flow loss, increasing the air flow speed, being able to reduce the temperature rise of the motor 200, and improving the safety and reliability during the operation of the motor 200.

[0047] It should be noted that when the outer side of the housing 210 is not cylindrical and the outer side of the hub 110 is not cylindrical, D1 refers to the diameter of the minimum circumscribed circle of the outer side of the housing 210, and D2 refers to the diameter of the minimum circumscribed circle of the outer side of the hub 110. Therefore, in actual measurement, the maximum length of the housing 210 in the radial direction is taken as D1, and the maximum length of the hub 110 in the radial direction is taken as D2.

[0048] Referring to Figure 5 and Figure 6 As shown, in the embodiment of the present utility model, the hub 110 is provided with second ventilation holes 111, and the second ventilation holes 111 penetrate through both ends of the hub 110 along the axial direction of the motor 200. Therefore, driven by the wind wheel 100, part of the air flow will pass through the second ventilation holes 111. When the heat exchanger 400 is blocked, the air flow enters from the middle of the wind wheel 100, and part of the air flow will pass through the motor 200 after passing through the second ventilation holes 111, which can increase the contact area between the air flow and the housing 210, thereby effectively taking away the heat generated by the motor 200, further reducing the temperature rise of the motor 200, and improving the safety and reliability of the motor 200 during operation.

[0049] Referring to Figure 4 As shown, in the embodiment of the present utility model, a plurality of second ventilation holes 111 are provided and are arranged at intervals along the circumferential direction of the hub 110. For example, the hub 110 includes an outer ring portion 113, a connecting portion 112, and a plurality of ribs (the ribs are not shown in the figure). The outer ring portion 113 is annular and has a hollow structure. The connecting portion 112 is arranged inside the outer ring portion 113 and is spaced from the outer ring portion 113. The plurality of ribs are connected between the outer ring portion 113 and the connecting portion 112 to determine the relative positions between the connecting portion 112 and the outer ring portion 113, and the plurality of ribs are arranged at intervals along the circumferential direction of the connecting portion 112. Among them, the outer side of the outer ring portion 113 is fixedly connected to the wind blade 120, and the connecting portion 112 is fixedly connected to the rotating shaft 260 of the motor 200. Second ventilation holes 111 are formed between adjacent ribs, so that a plurality of second ventilation holes 111 are arranged at intervals along the circumferential direction of the connecting portion 112. It can be understood that by providing a plurality of second ventilation holes 111, the uniformity of air intake or air outlet can be improved, so as to improve the heat dissipation effect on the motor 200 and reduce the occurrence of local overheating.

[0050] Referring to Figure 2As shown, in an embodiment of the present invention, the bracket 300 includes a frame 320, and the frame 320 is provided with a through hole 321, which can be a square hole. The fixing base 310 includes a fixing plate 312 and two connecting plates 313, and the two connecting plates 313 are respectively connected to the frame 320 and located on opposite sides of the through hole 321. For example, the two connecting plates 313 are spaced apart along the left and right directions. The two sides of the fixing plate 312 are respectively connected to the two connecting plates 313, for example, the left and right sides of the fixing plate 312 are respectively fixedly connected to one end of the two connecting plates 313 facing away from the frame 320. The fixed connection method can be welding, clamping, fastener connection, integrated molding, etc. For example, the fixing plate 312 is a sheet metal part, and the left and right ends of the fixing plate 312 are bent during stamping to form the connecting plates 313. It is understood that the integrated stamping method facilitates simplified production steps and improved production efficiency. Furthermore, the connection between the fixing plate 312 and the connecting plate 313 is stable and reliable, and is not prone to loosening or falling off. The fixing plate 312 is provided with a first ventilation hole 311, which is connected to the through hole 321. This facilitates airflow passing through the through hole 321 and the first ventilation hole 311 in sequence, reducing airflow resistance and thereby increasing airflow velocity, effectively reducing the temperature rise of the motor 200.

[0051] Reference Figure 1 As shown, in an embodiment of the present invention, two connecting plates 313 are spaced apart along a first direction, and an opening 315 is provided at at least one end of the fixing base 310 along a second direction, and the opening 315 connects the through hole 321 and the first ventilation hole 311. For example, the first direction is the left-right direction, or the up-down direction, and the second direction is perpendicular to the first direction. For example, the first direction is the left-right direction and the second direction is the up-down direction: there are two openings 315 and they are respectively provided at the upper end and the lower end of the fixing base 310. It can be understood that by providing the openings 315, air can be discharged through the first ventilation hole 311 and the openings 315, so that the heat generated by the motor 200 can be dissipated through multiple positions, which can further reduce the temperature rise of the motor 200 and improve the safety of the motor 200 during operation. As an alternative embodiment, the openings 315 can also be provided at the left and right ends of the fixing base 310, and the appropriate solution can be selected according to the actual situation.

[0052] Reference Figure 1 and Figure 2 As shown, in the embodiment of the present invention, bracket 300 is provided with weight-reducing holes 322. For example, two weight-reducing holes 322 are provided, one located above and one below the fixing base 310. Bracket 300 can be formed from sheet metal through cutting and stamping to improve production and assembly efficiency. Furthermore, the provision of weight-reducing holes 322 saves material and reduces the weight of bracket 300, thus reducing production costs and facilitating installation by workers, thereby improving installation efficiency.

[0053] Reference Figure 1 and Figure 2 As shown, in an embodiment of the present invention, a plurality of mounting feet 220 are provided, and the plurality of mounting feet 220 are arranged at intervals along the circumference of the housing 210, and the plurality of mounting feet 220 are connected to one end of the fixing seat 310 facing the wind wheel 100. For example, the fixing seat 310 is provided with a plurality of mounting holes 314, and the number of the mounting holes 314 is the same as the number of the mounting feet 220. The fixing plate 312 is provided with a first ventilation hole 311. The plurality of mounting holes 314 are arranged on the fixing plate 312 and are arranged at intervals along the circumference of the first ventilation hole 311. The wind turbine assembly 1000 also includes a plurality of fasteners, and the plurality of fasteners are correspondingly passed through the mounting feet 220 and threadedly connected to the mounting holes 314, thereby fixing the motor 200 on the fixing seat 310 to avoid the risk of the motor 200 loosening and falling off.

[0054] Reference Figure 2 As shown, in an embodiment of the present invention, a slot 221 is provided at one end of the mounting foot 220 facing away from the housing 210. The slot 221 extends through both ends of the mounting foot 220 in the axial direction. A recessed groove 222 is provided on one axial end wall of the mounting foot 220. The recessed groove 222 is connected to one end of the slot 221. The fan assembly 1000 also includes a vibration damping portion (not shown in the figure), which includes a connecting column and two vibration damping pads, each of which is connected to a vibration damping pad at each end of the connecting column. The connecting column is engaged with the slot 221, with one vibration damping pad located within the recessed groove 222 and the other vibration damping pad abutting the end wall of the mounting groove facing away from the recessed groove 222. It is understood that when the fastener is a screw, the head of the screw is located within the recessed groove 222, which prevents the head of the screw from protruding from the mounting foot 220. A vibration-damping pad is provided between the head of the screw and the bottom wall of the recessed groove 222 to prevent direct contact between the screw and the mounting foot 220, thereby reducing the transmission of vibrations from the motor 200 to the bracket 300 through the screw. Another vibration-damping pad can prevent direct contact between the mounting foot 220 and the fixing base 310, thereby reducing the transmission of vibrations from the motor 200 to the bracket 300 through the mounting foot 220, thereby reducing noise during operation of the motor 200 and improving the user experience.

[0055] Reference Figure 3As shown in the figure, in an embodiment of the present utility model, the motor 200 further includes a rotor 240, a stator 250, and a rotating shaft 260. The rotor 240 and the stator 250 are both disposed in the cavity of the housing 210, and the rotating shaft 260 extends out of the cavity. The stator 250 is annular and fixedly connected to the wall surface of the cavity. The rotor 240 is located inside the stator 250 and is spaced apart from the stator 250. The rotating shaft 260 is fixedly connected to the rotor 240 and rotatably connected to the housing 210. Through the cooperation of the stator 250 and the rotor 240, the rotating shaft 260 can be driven to rotate, thereby outputting torque. Therefore, the motor 200 is an inner rotor 240 motor 200, and the inner rotor 240 motor 200 has good structural compactness, high efficiency, and reliable stability.

[0056] An air conditioner according to an embodiment of the present utility model includes the fan assembly 1000 of the above embodiment. The air conditioner can be a split air conditioner, which includes an outdoor unit and an indoor unit. The outdoor unit and the indoor unit are connected by a refrigerant pipe. The air conditioner according to the embodiment of the present utility model adopts the fan assembly 1000 of the above embodiment. By setting the output end of the motor 200 to be drivingly connected to the wind wheel 100, the motor 200 can drive the wind wheel 100 to rotate. The mounting feet 220 of the motor 200 are fixedly connected to the outer side wall of the housing 210, and the mounting feet 220 are fixedly connected to the fixed seat 310 of the bracket 300, thereby determining the relative position between the motor 200 and the bracket 300 and ensuring the stability and reliability of the connection between the motor 200 and the bracket 300. Since the housing 210 is inserted into the first ventilation hole 311 and is spaced apart from the hole wall of the first ventilation hole 311, a channel for the air flow to pass through can be formed between the housing 210 and the first ventilation hole 311. When the air flow passes through the narrow space, the flow rate will increase, which can reduce the convective heat resistance on the surface of the housing 210, thereby effectively taking away the heat generated by the motor 200, reducing the temperature rise of the motor 200, reducing the heat generation, and reducing the occurrence of faults of the motor 200, and improving the safety and reliability during the operation of the motor 200.

[0057] Since the air conditioner adopts all the technical solutions of the fan assembly 1000 of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be elaborated here.

[0058] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present utility model pertains, various changes can be made without departing from the gist of the present utility model.

Claims

1. A fan assembly, characterized in that, Comprising: Wind wheel; A motor, drivingly connected to the wind wheel, the motor comprising a housing and mounting feet, the mounting feet being fixedly connected to the outer sidewall of the housing; A bracket, comprising a fixed seat, the fixed seat being provided with a first ventilation hole, the housing being disposed within the first ventilation hole and spaced apart from the hole wall of the first ventilation hole, the mounting feet being fixedly connected to the fixed seat.

2. The fan assembly according to claim 1, wherein: The minimum distance between the housing and the hole wall of the first ventilation hole is L1, satisfying: 2 mm ≤ L1 ≤ 8 mm.

3. The fan assembly according to claim 1, characterized in that: The fan comprises a hub connected to the output end of the motor, and along the axial direction of the motor, the minimum distance between the end of the hub and the end of the housing is L2, satisfying: 2 mm ≤ L2 ≤ 10 mm.

4. The fan assembly according to claim 1, wherein: The maximum outer diameter of the housing is D1, the fan comprises a hub connected to the output end of the motor, and the maximum outer diameter of the hub is D2, satisfying: -3 mm ≤ D1 - D2 ≤ 3 mm.

5. The fan assembly according to claim 1, characterized in that: The fan comprises a hub connected to the output end of the motor, and the hub is provided with a second ventilation hole penetrating through both ends of the hub along the axial direction of the motor.

6. The fan assembly according to claim 5, characterized in that: There are a plurality of the second ventilation holes and they are spaced apart along the circumferential direction of the hub.

7. The blower assembly according to claim 1, characterized in that The bracket comprises a frame body, the frame body being provided with a through hole, the fixed seat comprising a fixing plate and two connecting plates, the two connecting plates being spaced apart within the frame body and located on both sides of the through hole respectively, both sides of the fixing plate being connected to the two connecting plates respectively, and the fixing plate being spaced apart from the frame body, the fixing plate being provided with the first ventilation hole, and the first ventilation hole communicating with the through hole.

8. The blower assembly according to claim 7, characterized in that, The two connecting plates are spaced apart in a first direction, and at least one end of the fixed seat in a second direction is provided with an opening, the opening communicating the first ventilation hole and the through hole, the second direction being perpendicular to the first direction.

9. The blower assembly according to claim 1, wherein: There are a plurality of the mounting feet and they are spaced apart along the circumferential direction of the housing, and the plurality of mounting feet are connected to one end of the fixed seat close to the wind wheel.

10. Air conditioner, characterized in that: Comprising a fan assembly according to any one of claims 1 to 9.

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