CN221146646U

CN221146646U - Ceiling machine

Info

Publication number: CN221146646U
Application number: CN202322913078.XU
Authority: CN
Inventors: 柯得军; 文阁玲; 娄富成; 李嘉程
Original assignee: Ningbo Aux Electric Co Ltd
Current assignee: Ningbo Aux Electric Co Ltd
Priority date: 2023-10-30
Filing date: 2023-10-30
Publication date: 2024-06-14
Anticipated expiration: 2033-10-30

Abstract

The utility model provides a ceiling machine, which comprises a shell, wherein a motor and a wind wheel assembly are sequentially arranged in a cavity formed by the shell, the motor is in driving connection with the wind wheel assembly, a water receiving disc and an air inlet net cover are arranged below the shell, the air inlet net cover is detachably connected with the water receiving disc and is concentrically arranged with the wind wheel assembly, and the projection areas of the air inlet net cover and the wind wheel assembly on a horizontal plane are respectively S ₁、S₂, wherein S ₁≥S₂. The ceiling machine can complete the disassembly and assembly of the wind wheel component and the motor inside without disassembling the water receiving disc, so that the ceiling machine is easy to disassemble and assemble, and the cleaning and maintenance operation efficiency is high; can comb the air inlet air current, further reduce the running noise, effectively avoid the foreign matter to get into in the wind wheel subassembly simultaneously, the operation is more full high.

Description

Ceiling machine

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a ceiling machine.

Background

The ceiling machine is an embedded air conditioner of a ceiling, also called ceiling machine, courtyard machine or embedded air conditioner, has the advantages of good heating/manufacturing effect, wide radiation area and the like, and is popular with users in environments with larger space such as markets, large venues, office buildings and the like. Along with the improvement of life quality, a clean living environment is widely expected by users; the ceiling machine is easy to deposit ash on internal wind wheels and other parts after being used for a period of time, so that microorganism breeding is caused, and especially in a summer high-temperature and humid environment, the cleaning operation of the ceiling machine is becoming popular.

The existing ceiling machine is usually fixed with a motor on a chassis, and then the chassis foam, an evaporator, a wind wheel assembly, a water pan and other structures are sequentially installed, if the wind wheel is required to be cleaned or the motor is required to be maintained, the operation can be carried out after the limit of the water pan is required to be removed, so that the whole process is long in time consumption and low in efficiency.

In view of this, the present utility model has been made.

Disclosure of utility model

The utility model solves the problems that the prior ceiling machine has unreasonable structure, which causes complicated cleaning and maintenance operations on wind wheel components or motors and low disassembly and assembly efficiency.

In order to solve the problems, the utility model provides a ceiling machine, which comprises a shell, wherein a motor and a wind wheel assembly are sequentially arranged in a cavity formed by the shell, the motor is in driving connection with the wind wheel assembly, a water receiving disc and an air inlet net cover are arranged below the shell, the air inlet net cover is detachably connected with the water receiving disc and is concentrically arranged with the wind wheel assembly, and the projection areas of the air inlet net cover and the wind wheel assembly on a horizontal plane are respectively S ₁、S₂, wherein S ₁≥S₂.

According to the application, the air inlet net cover can comb the air inlet flow, so that the running noise is further reduced; meanwhile, the wind wheel assembly and the motor can be completely exposed after the air inlet net cover is disassembled, and the disassembly and the assembly of the wind wheel assembly and the motor inside can be completed under the condition that the water receiving disc is not disassembled, so that the ceiling machine is easy to disassemble and assemble, and the cleaning and maintenance operation efficiency is high; the air inlet net cover that sets up simultaneously can avoid the foreign matter to get into in the wind wheel subassembly, also can prevent that operating personnel from touching rotatory wind wheel subassembly and make the operation of smallpox machine safe and reliable more. Preferably, the step S ₁＝1.05*S₂. The arrangement does not need to redesign the water receiving tray, and the change is small; meanwhile, a certain gap is reserved when the wind wheel assembly is disassembled and assembled, and the disassembly and assembly efficiency is high.

Preferably, the air inlet mesh enclosure comprises an annular frame, an air guide grille and a supporting piece, wherein the air guide grille is positioned between the annular frame and the supporting piece, one side, far away from the air guide grille, of the annular frame is provided with an air guide ring, the wind wheel assembly part stretches into the air guide ring, and the maximum area of a circle where the projection of the air guide ring on the horizontal plane is set up for S ₃ and S ₃＜S₁.

The arrangement can shield the gap between the wind guide ring and the wind wheel assembly, and prevent the hand from extending into the error touch; simultaneously, the air inlet airflow is guided into the wind wheel assembly as much as possible, so that air leakage from a gap between the air inlet airflow and the wind wheel assembly is effectively avoided, the noise reduction effect is good, the air quantity is large, and the energy consumption is low.

Preferably, the water pan is provided with an avoidance hole at a position corresponding to the wind wheel assembly, the avoidance hole is used for limiting and assembling the air inlet net cover, the water pan is provided with slots, the slots are distributed along the peripheral side of the avoidance hole, the edge of the annular frame is provided with a buckle, and the buckle is limited and assembled in the slots.

During assembly, the air inlet mesh enclosure is embedded into the avoidance hole, and then the air inlet mesh enclosure is rotated clockwise or anticlockwise, so that the eye-splice is inserted into the slot, the assembly can be completed, the avoidance hole can ensure that the air inlet mesh enclosure does not deviate in the rotating process, and the disassembly and assembly efficiency is high; there is almost no gap between the air inlet net cover and the water receiving disc, all air inlet flows enter the wind wheel assembly through the air inlet net cover, and the air inlet net cover can be utilized to comb the air inlet flows, so that the noise is low.

Preferably, the eye-splice comprises a connecting part and an inserting part, wherein the connecting part is arranged along the radial direction of the annular frame, and the inserting part is perpendicular to the connecting part. The arrangement makes the plug-in part tangent to the edge of the annular frame, and the plug-in part can be embedded into the slot by rotating the air inlet net cover, so that the structure is simple, and the production and the processing are convenient.

Preferably, a limit groove is formed in one side of the plug-in portion, an assembly hole is formed in a position, corresponding to the limit groove, of the slot, and the bolt penetrates through the assembly hole and then is limited and assembled into the limit groove. The setting can utilize a bolt to lock the slot, the eye-splice, prevents to run in-process because the air inlet screen panel vibrations and deviate from in the slot, ensures operation safety, stability.

Preferably, the air guide grating comprises axial air guide strips and radial air guide strips, the axial air guide strips are annularly arranged, a plurality of the axial air guide strips are concentrically arranged between the annular frame and the supporting piece, the radial air guide strips are radially arranged along the annular frame to enable the axial air guide strips to be connected with each other, and an included angle A is formed between a curved surface where the axial air guide strips are located and a central shaft of the annular frame, wherein the included angle A is more than or equal to-90 degrees and less than or equal to 90 degrees.

The device can comb the air inlet flow, reduce the blocking effect on the air flow and reduce the air inlet noise; in addition, sundries can be prevented from entering the ceiling machine, and the structural strength between adjacent radial wind guide strips is improved, so that the whole wind inlet net cover is reinforced.

Preferably, an included angle is formed between the curved surface where the axial wind guide strip is located and the central axis of the annular frame, and the included angle gradually changes from a position close to the annular frame to a position close to the supporting piece. The air guide grating structure can guide air near the support piece to the position of the air guide grating, and the phenomenon that the air is blocked by the support piece to change the flow direction, so that the air flow is disturbed to generate noise is avoided.

Preferably, an included angle A ₁ is formed between the curved surface of the axial air guide strip near the annular frame and the central axis of the annular frame, and an included angle A ₂ is formed between the curved surface of the axial air guide strip near the support piece and the central axis of the annular frame, wherein an included angle A ₁＜0°＜A₂ is more than or equal to-90 degrees and less than 45 degrees. The arrangement can lead the axial air guide strips positioned at the edge and the center to guide air to the working area of the wind wheel assembly at the same time, so that air intake is smoother.

Preferably, the radial wind guiding strip is arc-shaped and protrudes towards one side far away from the wind wheel assembly, and one end of the radial wind guiding strip, which is close to the supporting piece, is higher than the annular frame.

The arrangement can further increase the air inlet area of the air inlet net cover, so that the air inlet flow is smoother; meanwhile, the air inlet area is larger in the working range of the fan blade close to the wind wheel assembly, and the air inlet is smoother, so that the flow resistance of air flow and noise generated by the air flow are reduced.

Preferably, the wind-guiding ring includes that be concentric setting and the constriction portion, extension, the expansion portion that connect gradually, the constriction portion is in the diameter of annular frame one end is greater than the diameter of the other end, the expansion portion is close to extension one end is outwards expanded gradually to the other end, the minimum interval between expansion portion and the wind wheel subassembly is X ₁, and wherein X ₁'s value range is 0.2-1.5mm.

The arrangement can guide the air inlet flow by using the air guide ring, so that more air inlet flow is conveyed to the working area of the wind wheel assembly; the expansion part is arranged, so that the air inlet flow entering the wind wheel assembly can be rapidly distributed to the whole wind wheel assembly, the air inlet flow is prevented from overflowing along a gap between the air inlet flow and the air outlet flow, and the air guiding effect is better; meanwhile, the wind wheel component can be prevented from generating abnormal sound due to scraping with the air inlet net cover in the rotation process, and the noise is low.

Preferably, the longitudinal section of the support piece is semicircular, the upper surface of the support piece is provided with a plurality of strip-shaped grooves, and the grooves are radially distributed along the circumferential direction of the support piece. This arrangement can avoid turbulence in the intermediate position to reduce noise; meanwhile, the supporting piece is arranged, so that an operator can conveniently grasp the support piece to apply force.

Compared with the prior art, the ceiling machine has the following beneficial effects: 1) The ceiling machine can complete the disassembly and assembly of the wind wheel assembly and the motor inside without disassembling the water receiving disc, so that the ceiling machine is easy to disassemble and assemble, and the cleaning and maintenance operation efficiency is high; 2) The air inlet air flow can be combed, the running noise is further reduced, and foreign matters can be effectively prevented from entering the wind wheel assembly; 3) Simple structure, and is convenient for production and processing.

Drawings

FIG. 1 is an overall schematic view of a ceiling fan according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a ceiling fan according to an embodiment of the present utility model;

FIG. 3 is a first view of a ceiling fan according to an embodiment of the present utility model;

FIG. 4 is an enlarged partial schematic view of FIG. 3A;

FIG. 5 is an enlarged partial schematic view at B in FIG. 3;

fig. 6 is an assembly schematic diagram of an air intake screen according to an embodiment of the present utility model;

FIG. 7 is an enlarged partial schematic view of FIG. 6 at C;

FIG. 8 is a schematic longitudinal cross-sectional view of a ceiling fan according to an embodiment of the present utility model;

FIG. 9 is a partially enlarged schematic illustration of FIG. 8 at D;

FIG. 10 is a top view of an air intake screen according to an embodiment of the present utility model;

FIG. 11 is a side view of an air intake screen according to an embodiment of the present utility model;

fig. 12 is a first view of an air intake screen according to an embodiment of the present utility model;

FIG. 13 is an enlarged partial schematic view of FIG. 12 at E;

fig. 14 is an overall schematic view of a wind turbine assembly according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a wind wheel assembly; 11-a hub; 12-a bottom plate; 13-a guide ring; 14-fan blades; 141-latch; 142-notch; 2-an electric motor; 21-a motor shaft; 22-shaft sleeve; 3-a housing; 4-an air inlet net cover; 41-an annular frame; 411-eye-splice; 4111-connection; 4112-plug section; 412-a limit groove; 42-an air guide grille; 421-axial wind guiding strips; 422-radial wind guiding strips; 43-wind-guiding ring; 431-constriction; 432-extensions; 433-an expansion portion; 44-a support; 441-groove missing; 5-a water receiving disc; 51-avoiding holes; 52-slots; 6-evaporator.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be noted that, on the premise of no conflict, the technical features in the embodiments of the present utility model may be combined with each other.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact through an intervening medium. The first feature being "above," "over" and "on" the second feature may be the first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 1-14, a ceiling machine comprises a housing 3, a motor 2 and a wind wheel assembly 1 are sequentially arranged in a cavity formed by the housing 3, the motor 2 is in driving connection with the wind wheel assembly 1, a water pan 5 and an air inlet net cover 4 are arranged below the housing 3, the air inlet net cover 4 is detachably connected with the water pan 5 and concentrically arranged with the wind wheel assembly 1, and the projection areas of the air inlet net cover 4 and the wind wheel assembly 1 on a horizontal plane are respectively S ₁、S₂, wherein S ₁≥S₂.

According to the application, the air inlet net cover 4 not only can comb the air inlet flow, but also can further reduce the running noise; meanwhile, the wind wheel assembly 1 and the motor 2 can be completely exposed after the air inlet net cover 4 is disassembled, and the internal wind wheel assembly 1 and the motor 2 can be disassembled and assembled under the condition that the water pan 5 is not disassembled, so that the ceiling machine is easy to disassemble and assemble, and the cleaning and maintenance operation efficiency is high; the air inlet net cover 4 that sets up simultaneously can avoid the foreign matter to get into in the wind wheel subassembly 1, also can prevent that operating personnel from touching rotatory wind wheel subassembly 1 and make the operation of smallpox machine safe and reliable more. Preferably, the step S ₁＝1.05*S₂. The arrangement does not need to redesign the water receiving tray 5, and the change is small; meanwhile, a certain gap is reserved when the wind wheel assembly 1 is disassembled and assembled, and the disassembly and assembly efficiency is high.

The shell 3 is further internally provided with an evaporator 6, and the evaporator 6 is located at the outer side of the wind wheel assembly 1 and used for heat exchange between a refrigerant and an air flow, and the specific structure and the assembly relation of the evaporator are in the prior art and are not described herein.

As a preferred example of the present utility model, the air intake screen 4 includes an annular frame 41, an air guiding grille 42, and a supporting member 44, the air guiding grille 42 is located between the annular frame 41 and the supporting member 44, the air guiding ring 43 is disposed on a side of the annular frame 41 away from the air guiding grille 42, wherein a part of the wind wheel assembly 1 extends into the air guiding ring 43, and a projection of the air guiding ring 43 on a horizontal plane is S ₃ and S ₃＜S₁.

According to the application, the air inlet net cover 4 can shield the gap between the air guide ring 43 and the wind wheel assembly 1, so that the hand is prevented from extending into the false touch; simultaneously, the air inlet airflow is guided into the wind wheel assembly 1 as much as possible, so that air leakage from a gap between the air inlet airflow and the wind wheel assembly is effectively avoided, the noise reduction effect is good, the conveying air quantity is large, and the energy consumption is low.

As an example of the present utility model, the water pan 5 is provided with a avoiding hole 51 corresponding to the wind wheel assembly 1, and is used for limiting and assembling the air intake net cover 4, the water pan 5 is provided with slots 52, the slots 52 are distributed along the outer circumference side of the avoiding hole 51, the edge of the annular frame 41 is provided with a buckle 411, and the buckle 411 is limited and assembled into the slot 52. During assembly, the air inlet net cover 4 is embedded into the avoidance hole 51, and then the air inlet net cover 4 is rotated clockwise or anticlockwise, so that the inserting buckle 411 is inserted into the slot 52 to complete assembly, the avoidance hole 51 can ensure that the air inlet net cover 4 does not deviate in the rotating process, and the disassembly and assembly efficiency is high; there is little gap between the air inlet net cover 4 and the water receiving disc 5, all air inlet flows enter the wind wheel assembly 1 through the air inlet net cover 4, and the air inlet flows can be combed by utilizing the air inlet net cover 4, so that the noise is low.

Preferably, the number of the inserting buttons 411 is 4-8, and the inserting buttons are distributed at equal intervals along the circumference of the annular frame 41. After the ceiling machine is installed, the weight of the whole air inlet net cover 4 acts on the water receiving disc 5 through the eye-splice 411, and the installation can give consideration to the tightness and the reliability of the assembly. Preferably, the insert 411 is higher than the annular frame 41, and the two are integrally formed. The arrangement enables the whole air inlet net cover 4 to be completely embedded into the avoiding hole 51, lines presented by the assembled ceiling machine are concise, and good visual sense is provided for people.

As a preferred example of the present utility model, the plug 411 includes a connection portion 4111 and a plug portion 4112, the connection portion 4111 is disposed along a radial direction of the annular frame 41, and the plug portion 4112 is disposed perpendicular to the connection portion 4111. The arrangement makes the plugging portion 4112 tangent to the edge of the annular frame 41, and the plugging portion 4112 can be embedded into the slot 52 by rotating the air intake net cover 4, so that the structure is simple and the production and processing are convenient. Preferably, the minimum distance between the plugging portion 4112 and the annular frame 41 is M ₁, and the diameter of the annular frame 41 is M ₂, where M ₁＝(0.02-0.05)*M₂. The arrangement is compact in structure, and is firmly and firmly assembled with the water receiving disc 5.

Preferably, a limiting groove 412 is disposed on one side of the plugging portion 4112, an assembly hole is disposed at a position corresponding to the slot 52 and the limiting groove 412, and a bolt is inserted into the assembly hole and then is limited and assembled into the limiting groove 412. The arrangement can lock the slot 52 and the eye-splice 411 by utilizing one bolt, so that the vibration of the air inlet net cover 4 and the falling-out from the slot 52 in the running process are prevented, and the running safety and stability are ensured.

As one preferable aspect of the present utility model, the air guiding grille 42 includes axial air guiding strips 421 and radial air guiding strips 422, the axial air guiding strips 421 are annularly disposed, a plurality of the axial air guiding strips 421 are concentrically disposed between the annular frame 41 and the supporting member 44, the radial air guiding strips 422 are radially disposed along the annular frame 41 to connect the axial air guiding strips 421 to each other, and an included angle a is formed between a curved surface of the axial air guiding strips 421 and a central axis of the annular frame 41, wherein-90 ° is equal to or greater than a and is equal to or less than 90 °.

According to the application, the air guide grille 42 can comb the air inlet flow through arranging the axial air guide strips 421, so that the blocking effect on the air flow is reduced, and the air inlet noise is smaller; in addition, sundries can be prevented from entering the ceiling machine, and the structural strength between the adjacent radial wind guide strips 422 is improved, so that the whole wind inlet net cover 4 is reinforced.

As a preferred example of the present utility model, the radial wind guiding strips 422 are arc-shaped and protrude toward a side far from the wind wheel assembly 1, and one end of the radial wind guiding strips 422 near the supporting member 44 is higher than the annular frame 41. The arrangement can further increase the air inlet area of the air inlet net cover 4, so that the air inlet flow is smoother; meanwhile, the air inlet area is larger in the working range of the fan blade 14 close to the wind wheel assembly 1, and the air inlet is smoother, so that the flow resistance of air flow and noise generated by the air flow are reduced.

As a preferred example of the present utility model, an included angle formed between the curved surface of the axial wind guiding strip 421 and the central axis of the annular frame 41 gradually changes from the position near the annular frame 41 to the position of the supporting member 44. This arrangement guides the air around the support 44 to the air guide grille 42, and prevents the air from being blocked by the support 44 and changing its direction, thereby causing turbulence in the air flow and noise.

Preferably, an included angle a ₁ is formed between the curved surface of the axial air guiding strip 421 near the annular frame 41 and the central axis of the annular frame 41, and an included angle a ₂ is formed between the curved surface of the axial air guiding strip 421 near the supporting member 44 and the central axis of the annular frame 41, wherein-90 ° is greater than or equal to a ₁＜0°＜A₂ ° and less than 45 °. This arrangement enables the axial air guide bars 421 at the edges and the centre to simultaneously guide air to the working area of the wind wheel assembly 1, with smoother air intake.

Preferably, the angle between the curved surface of the axial air guiding strip 421 at the highest point of the radial air guiding strip 422 and the central axis of the annular frame 41 is 0 °. This arrangement allows the best wind guiding effect of the radial wind guiding strips 422 at the position corresponding to the wind wheel assembly 1 where the wind inlet area is the largest and the airflow resistance is the smallest.

As an example of the present utility model, the wind guiding ring 43 includes a constriction portion 431, an extension portion 432, and an expansion portion 433 that are concentrically arranged and sequentially connected, the diameter of the constriction portion 431 at one end of the annular frame 41 is larger than that of the other end, the expansion portion 433 gradually expands outwards from one end close to the extension portion 432 to the other end, and the minimum distance between the expansion portion 433 and the wind wheel assembly 1 is X1, where the value of X ₁ ranges from 0.2 mm to 1.5mm.

This arrangement enables the inlet air flow to be directed by the wind guide ring 43 so as to deliver more inlet air flow to the working area of the wind wheel assembly 1; the expanding part 433 can enable the air inlet flow entering the wind wheel assembly 1 to be rapidly distributed to the whole wind wheel assembly 1, so that the air inlet flow is prevented from overflowing along a gap between the air inlet flow and the air outlet flow, and the air guiding effect is better; meanwhile, the wind wheel assembly 1 can be prevented from generating abnormal sound due to scraping with the air inlet net cover 4 in the rotation process, and the noise is low.

As an example of the present utility model, the support member 44 has a semicircular longitudinal section, and the upper surface of the support member 44 is provided with a plurality of elongated slots 441, and the slots 441 are radially arranged along the circumferential direction of the support member 44. Turbulence at the intermediate position can be avoided by providing the support 44 to reduce noise; while providing ease of grasping by an operator to apply force by providing the support 44.

As a preferred example of the present utility model, a shaft sleeve 22 is fixedly assembled on a side of the wind wheel assembly 1 away from the motor 2, the motor 2 comprises a motor shaft 21, the motor shaft 21 is arranged through the shaft sleeve 22, an assembly hole is arranged on the side of the shaft sleeve 22, and a locking member is installed in the assembly hole, passes through the assembly hole and abuts against the motor shaft 21 to realize driving connection of the motor 2 and the wind wheel assembly 1.

This setting can realize the drive connection between motor 2 and the wind wheel subassembly 1 through a retaining member, and required part is few, and the tip of motor shaft 21 need not carry out flat processing simultaneously, avoids flat counterpoint in the installation, improves assembly efficiency greatly. The motor 2 is fixedly assembled on the housing 3, and the assembly relationship between the motor and the housing is the prior art, which is not described herein.

Preferably, the central axis of the assembly hole is perpendicular to the central axis of the motor shaft 21. Preferably, the free end of the bolt is interference fitted with the side wall of the motor shaft 21 with an interference greater than 0.5mm. The motor shaft 21 is not easy to slip when the motor 2 drives the wind wheel assembly 1 to rotate, and the assembly difficulty and the transmission reliability can be considered.

As an example of the present utility model, the wind wheel assembly 1 includes a hub 11, a bottom plate 12, and a guide ring 13, where the bottom edge of the hub 11 extends to form the bottom plate 12, the bottom plate 12 is provided with a fan blade 14, the fan blade 14 is inserted into the bottom plate 12, the upper end of the fan blade 14 is inserted into the guide ring 13, and the guide ring 13 partially extends into the guide ring 43. When the motor 2 drives the wind wheel assembly 1 to rotate, air is fed from the air inlet of the guide ring 13 and finally air is discharged from the air outlet 15, so that air flow is realized. Preferably, the distance that the guide ring 13 extends into the air guide ring 43 is 1-6mm. The ceiling machine has compact integral structure and good air guiding effect.

An air outlet is formed among the bottom plate 12, the guide ring 13 and the fan blades 14. As a preferred example of the present application, the bottom plate 12 is provided with a blade slot for fixing the fan blade 14; the blade slots are equally spaced along the perimeter of the base plate 12. Preferably, the two ends of the fan blade 14 are respectively clamped and assembled with the bottom plate 12 and the guide ring 13, and the arrangement ensures that the fan blade 14, the bottom plate 12 and the guide ring 13 are in a detachable structure, thereby being convenient for the maintenance and the assembly of the wind wheel assembly 1; of course, the fan blade 14 may be fixed to the bottom plate 12 and the guide ring 13 by adhesion, so as to ensure firm assembly.

As a preferred example of the present application, the hub 11 is partially protruded from the deflector 13, the sleeve 22 is fixedly mounted on the hub 11 and is located above the deflector 13, and a minimum distance M ₁ =30-50 mm between the sleeve 22 and the deflector 13. The arrangement is convenient to operate and is easy to lock with the motor shaft 21 and the wind wheel assembly 1.

As a preferred example of the present utility model, the fan blade 14 includes a fan blade housing comprising a windward side and a leeward side, and the tail edge of the fan blade housing is provided with a latch 141. The air outlet air flow at the air outlet can be stabilized through the latch 141, the air flow noise of the ceiling machine can be further reduced by being matched with the air inlet net cover 4, and the use experience of a user is improved.

Preferably, a notch 142 is provided on the trailing edge of the fan blade housing, and the notch 142 is located below the latch 141. The mode of setting up breach 142 further reduces the air current noise, improves the noise performance of equipment, improves user's use and experiences.

The width, height H3 and thickness of the notch 142 are respectively 16 mm-25 mm, 8mm-38mm and 1-2.5mm. The specific parameters and the proportion relation of the notch 142 are found to influence the noise control, and the simulation and experimental measurement prove that the parameters are limited in the limited range, so that the finally formed fan blade 14 has larger air output on one hand, the working efficiency of the fan blade 14 is ensured, on the other hand, the arrangement is favorable for reducing the air flow noise, the air output noise can be effectively controlled, and the balance noise control and the performance requirement of the fan blade 14 are met. Preferably, the plurality of latches 141 are sequentially arranged from top to bottom along the tail edge of the fan blade housing, and the height H4 of the latches 141 is 100-150mm, wherein H ₃:H₄ = (3-18): 1. This arrangement enables the operational noise of the wind turbine assembly 1 to be minimised.

Although the present utility model is disclosed above, the present utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model should be assessed accordingly to that of the appended claims.

Claims

1. The utility model provides a smallpox machine, includes shell (3), motor (2), wind wheel subassembly (1) set gradually in the appearance intracavity that shell (3) formed, motor (2) with wind wheel subassembly (1) drive connection, a serial communication port, the below of shell (3) sets up water collector (5), air inlet screen panel (4) with water collector (5) can dismantle and be connected and with wind wheel subassembly (1) concentric setting, the projected area of air inlet screen panel (4), wind wheel subassembly (1) at the horizontal plane is S ₁、S₂ respectively, wherein S ₁≥S₂.

2. The ceiling fan according to claim 1, wherein the air intake screen (4) comprises an annular frame (41), a wind guide grid (42) and a supporting piece (44), the wind guide grid (42) is located between the annular frame (41) and the supporting piece (44), a wind guide ring (43) is arranged on one side, far away from the wind guide grid (42), of the annular frame (41), the wind wheel assembly (1) stretches into the wind guide ring (43), and the maximum area of a circle where the projection of the wind guide ring (43) is located on a horizontal plane is set at S ₃ and S ₃＜S₁.

3. The ceiling machine according to claim 2, wherein the water pan (5) is provided with an avoidance hole (51) corresponding to the wind wheel assembly (1) for limiting assembly of the air inlet net cover (4), the water pan (5) is provided with slots (52), the slots (52) are distributed along the peripheral side of the avoidance hole (51), the edge of the annular frame (41) is provided with a buckle (411), and the buckle (411) is limited and assembled into the slots (52).

4. A ceiling fan according to claim 3, characterized in that the eye-splice (411) comprises a connection portion (4111), a plug-in portion (4112), the connection portion (4111) being arranged in a radial direction of the annular rim (41), the plug-in portion (4112) being arranged perpendicular to the connection portion (4111).

5. The ceiling machine according to claim 4, wherein a limit groove (412) is provided on one side of the plugging portion (4112), an assembly hole is provided at a position corresponding to the limit groove (412) in the slot (52), and a bolt is limited to be assembled into the limit groove (412) after passing through the assembly hole.

6. The ceiling fan according to claim 2, wherein the air guiding grid (42) comprises axial air guiding strips (421) and radial air guiding strips (422), the axial air guiding strips (421) are annularly arranged, a plurality of the axial air guiding strips (421) are concentrically arranged between the annular frame (41) and the supporting piece (44), the radial air guiding strips (422) are radially arranged along the annular frame (41) to enable the axial air guiding strips (421) to be connected with each other, and an included angle a is formed between a curved surface where the axial air guiding strips (421) are located and a central axis of the annular frame (41), wherein-90 degrees are less than or equal to 90 degrees.

7. The ceiling fan according to claim 6, wherein an included angle formed between the curved surface of the axial wind guiding strip (421) and the central axis of the annular frame (41) gradually changes from a position close to the annular frame (41) to a position close to the supporting member (44).

8. The ceiling fan according to claim 6, characterized in that the radial wind guiding strips (422) are arc-shaped and are arranged to protrude towards the side away from the wind wheel assembly (1), and the radial wind guiding strips (422) are arranged higher than the annular frame (41) at the end close to the supporting piece (44).

9. The ceiling fan according to claim 2, wherein the air guiding ring (43) comprises a contraction part (431), an extension part (432) and an expansion part (433) which are concentrically arranged and sequentially connected, the diameter of the contraction part (431) at one end of the annular frame (41) is larger than that of the other end, the expansion part (433) gradually expands outwards from one end close to the extension part (432) to the other end, and the minimum distance between the expansion part (433) and the wind wheel assembly (1) is X ₁, wherein the value range of X ₁ is 0.2-1.5mm.

10. The ceiling machine according to claim 2, characterized in that the longitudinal section of the supporting member (44) is semicircular, the upper surface of the supporting member (44) is provided with a plurality of elongated slots (441), and the slots (441) are radially arranged along the circumferential direction of the supporting member (44).