CN210118861U

CN210118861U - Ceiling machine

Info

Publication number: CN210118861U
Application number: CN201921010790.6U
Authority: CN
Inventors: 林超
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-02-28
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a ceiling machine, include: the bottom of the shell is provided with an air inlet; centrifugal wind wheel, centrifugal wind wheel establish in the casing, the casing with the air intake relative interior roof and the centrifugal wind wheel between the axial minimum distance be M, M satisfies: m is more than or equal to 10mm and less than or equal to 15 mm. According to the utility model discloses a ceiling machine, the value range of the axial minimum distance M between the interior roof relative with the air intake of casing and the centrifugal wind wheel sets to 10mm and is less than or equal to M and is less than or equal to 15mm, thereby can compromise the assembly effect of centrifugal wind wheel and casing and ceiling machine's heat transfer effect, the interior roof of centrifugal wind wheel in the axial and casing bump has been avoided, thereby assembly has been reduced, the cracked risk of centrifugal wind wheel in transportation and the use, and reveal the air current in the interval between the roof in centrifugal wind wheel and the casing can not too many, the heat transfer effect of ceiling machine has been guaranteed.

Description

Ceiling machine

Technical Field

The utility model belongs to the technical field of the air conditioning technique and specifically relates to a smallpox machine is related to.

Background

The centrifugal wind wheel of the ceiling machine in the related art is unreasonable in layout. Some ceiling machines are easy to collide with the centrifugal wind wheel and the housing of the ceiling machine in the assembling and transporting processes. Some smallpox machines have large air loss, resulting in poor heat exchange effect of the heat exchanger.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a ceiling machine can reduce the possibility of colliding with of centrifugal wind wheel and casing.

According to the utility model discloses smallpox machine, include: the air inlet is formed in the bottom of the shell; the centrifugal wind wheel is arranged in the shell, the axial minimum distance between the inner top wall of the shell, which is opposite to the air inlet, and the centrifugal wind wheel is M, and M satisfies the following conditions: m is more than or equal to 10mm and less than or equal to 15 mm.

According to the utility model discloses smallpox machine, the value scope of the axial minimum distance M between the interior roof relative with the air intake of casing and the centrifugal wind wheel sets to 10mm and is less than or equal to M and is less than or equal to 15mm, thereby can compromise the assembly effect of centrifugal wind wheel and casing and the heat transfer effect of smallpox machine, the interior roof of centrifugal wind wheel in the axial and casing bump has been avoided, thereby assembly has been reduced, the cracked risk of centrifugal wind wheel in transportation and the use, and reveal to the interior spaced air current of roof of centrifugal wind wheel and casing can not too many, the heat transfer effect of smallpox machine has been guaranteed.

In some embodiments of the present invention, the wind-guiding device further comprises an annular wind-guiding ring, and the wind-guiding ring is located between the centrifugal wind wheel and the air inlet.

In some embodiments of the present invention, one of the air outlet end of the air guiding ring and the air inlet end of the centrifugal wind wheel extends into the other of the air outlet end of the air guiding ring and the air inlet end of the centrifugal wind wheel.

The utility model discloses an in some embodiments, the terminal surface of the air-out end of wind-guiding circle with axial minimum distance between the terminal surface of the air inlet end of centrifugal wind wheel is H, H satisfies: h is more than or equal to 5mm and less than or equal to 8 mm.

In some embodiments of the present invention, along the flowing direction of the airflow, the wind guiding ring includes an annular flow guiding section, an annular direct current section and an annular flaring section which are connected in sequence; the flow guide section is arranged on the outer wall of the shell, and the flow guide section is arranged on the outer wall of the shell.

In some embodiments of the present invention, at least one of the inner wall surface of the flow guide section and the inner wall surface of the flared section is formed as a curved surface in the flow direction of the air flow.

In some embodiments of the present invention, the flow area of the direct current section remains constant along the flow direction of the air flow.

The utility model discloses an in some embodiments, still include heat exchanger and water collector, the heat exchanger with the water collector is all established in the casing, the heat exchanger is in encircle on centrifugal wind wheel's the circumferential direction centrifugal wind wheel, the water collector is the annular and is located the below of heat exchanger is in order to be used for receiving the comdenstion water, the wind-guiding circle install extremely the water collector.

The utility model discloses an in some embodiments, the terminal surface of the air inlet end of centrifugal wind wheel with axial minimum distance between the terminal surface of the air inlet end of wind-guiding circle is N, N satisfies: n is more than or equal to 8mm and less than or equal to 12 mm.

In some embodiments of the present invention, the housing comprises: a chassis member; an annular case member, an axially upper end of which is connected to an outer peripheral wall of the chassis member; the panel part, the panel part is established the axial lower extreme of box part, be equipped with on the panel part air intake and air outlet, wherein, the air outlet is located the radial outside of air intake, the air outlet is followed the circumferential direction of air intake extends.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view of a ceiling machine according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged partial view of the circled portion at B in FIG. 2;

FIG. 4 is an enlarged partial view of the circled portion at C in FIG. 2;

fig. 5 is a partially enlarged view of a circled portion at D in fig. 2.

Reference numerals:

a ceiling machine 100;

a housing 1; an air inlet 1 a; an air outlet 1 b; a chassis member 11; a case member 12; a panel member 13;

a centrifugal wind wheel 2; a wind guide ring 3; a flow guide section 31; a DC section 32; a flared section 33; a heat exchanger 4; a water pan 5; a motor 6; and a connecting plate 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A ceiling unit 100 according to an embodiment of the present invention will be described with reference to the drawings, in which the ceiling unit 100 (also called a ceiling air conditioner or a ceiling air conditioner) is installed on a ceiling in a room of a building, and processed cold air or hot air is supplied to each room for the purpose of adjusting the temperature of air in the room.

As shown in fig. 1 and fig. 2, a ceiling fan 100 according to an embodiment of the present invention includes: a shell 1 and a centrifugal wind wheel 2.

As shown in fig. 2, the bottom of the housing 1 is provided with an air inlet 1 a; therefore, indoor air can enter the shell 1 through the air inlet 1a, and the centrifugal wind wheel 2 inside the ceiling machine 100 can conveniently extract air through the air inlet 1 a.

The centrifugal wind wheel 2 is arranged in the shell 1; the centrifugal wind wheel 2 is a wind wheel which can axially intake air and radially output air, and utilizes centrifugal force (depending on rotating speed and outer diameter) to do work to improve pressure of air. Specifically, for example, referring to fig. 2, the lower end of the centrifugal wind wheel 2 is an air inlet end, and the air inlet end of the centrifugal wind wheel 2 is located right above the air inlet 1a and is communicated with the air inlet 1a, so that indoor air can be extracted and discharged along the radial direction of the centrifugal wind wheel 2; the shell 1 can play a protective role for the centrifugal wind wheel 2, so that the damage risk of the centrifugal wind wheel 2 in the transportation and installation process is reduced.

Referring to fig. 2 and 4, the minimum axial distance between the inner top wall of the housing 1 opposite to the air inlet 1a and the centrifugal wind wheel 2 is M, and M satisfies: m is more than or equal to 10mm and less than or equal to 15 mm. Specifically, for example, referring to fig. 2, the axial distance between the inner top wall of the casing and the upper end face of the centrifugal wind wheel 2 needs to be a value within a reasonable interval, otherwise the use of the ceiling fan 100 is affected. When M is too small, namely the centrifugal wind wheel 2 is closer to the inner top wall of the shell 1 when being installed, position fluctuation exists in the axial direction of the centrifugal wind wheel 2, so that the centrifugal wind wheel 2 is easy to collide with the inner top wall of the shell 1, and the centrifugal wind wheel 2 is broken; when the M is too large, part of the airflow is easy to leak into the space between the centrifugal wind wheel 2 and the inner top wall of the shell 1, so that the effective radial air output of the centrifugal wind wheel 2 is reduced, and the heat exchange effect of the ceiling fan 100 is further influenced; therefore, in order to take account of the assembling effect of the centrifugal wind wheel 2 and the housing 1 and the heat exchange effect of the ceiling fan 100, the value range of the axial minimum distance M between the inner top wall of the housing 1, which is opposite to the air inlet 1a, and the centrifugal wind wheel 2 is set to be 10mm or more and 15mm or less.

Alternatively, M is 10.5mm, 10.9mm, 11mm, 11.3mm, 11.6mm, 11.8mm, 12mm, 12.1mm, 12.6mm, 13mm, 13.5mm, 14mm, 14.5mm, or the like.

In conclusion, according to the utility model discloses smallpox machine 100, the value scope of the axial minimum distance M between the interior roof relative with air intake 1a of casing 1 and centrifugal wind wheel 2 sets to 10mm and is less than or equal to M and is less than or equal to 15mm, thereby can compromise centrifugal wind wheel 2 and casing 1's assembly effect and smallpox machine 100's heat transfer effect, avoided centrifugal wind wheel 2 to collide with casing 1's interior roof in the axial, thereby reduced at the assembly, transportation and in the use risk that centrifugal wind wheel 2 broke, and reveal the air current in the interval between centrifugal wind wheel 2 and the interior roof of casing 1 can not too many, the heat transfer effect of smallpox machine 100 has been guaranteed.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In some embodiments of the present invention, as shown in fig. 2, the ceiling fan 100 further includes an annular wind guiding ring 3, and the wind guiding ring 3 is located between the centrifugal wind wheel 2 and the wind inlet 1 a. Specifically, for example, referring to fig. 2, the upper end and the lower end of the air guiding ring 3 are opened to form a channel through which an air flow can pass, wherein the lower end of the air guiding ring 3 is an air inlet end, the upper end of the air guiding ring 3 is an air outlet end, the air inlet end of the air guiding ring 3 is communicated with the air inlet 1a, and the air outlet end is opposite to the air inlet end of the centrifugal wind wheel 2, so that the air guiding ring 3 can guide the air flow entering from the air inlet 1a, and the air flow is easily extracted by the centrifugal wind wheel 2.

In some embodiments of the utility model, one of them in the air-out end of wind-guiding circle 3 and the air inlet end of centrifugal wind wheel 2 stretches into in another in the air-out end of wind-guiding circle 3 and the air inlet end of centrifugal wind wheel 2, meaning that there is partial coincidence in the axial direction (for example the upper and lower direction in figure 2) in the air-out end of wind-guiding circle 3 and the air inlet end of centrifugal wind wheel 2, this includes two kinds of circumstances, and the air-out end of wind-guiding circle 3 stretches into in the air-inlet end of centrifugal wind wheel 2 or the air inlet end of centrifugal wind wheel 2 stretches into in the air-out end of wind-guiding circle 3. Compared with the condition that the air outlet end of the air guide ring 3 and the air inlet end of the centrifugal wind wheel 2 do not coincide in the axial direction in the related art, the air quantity leakage generated when the centrifugal wind wheel 2 extracts air can be reduced by the implementation mode, so that the effective air inlet quantity of the centrifugal wind wheel 2 can be increased, and the heat exchange effect of the ceiling fan 100 is improved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", "axial", "radial", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In some optional embodiments of the present invention, the air outlet end of the air guiding ring 3 extends into the air inlet end of the centrifugal wind wheel 2.

Specifically, for example, referring to fig. 2 and 3, the inner diameter of the air inlet end of the centrifugal wind wheel 2 is larger than the outer diameter of the air outlet end of the air guide ring 3, so that the air outlet end of the air guide ring 3 can extend into the air inlet end of the centrifugal wind wheel 2 during assembly, and after the arrangement, more air flow can be guided into the air inlet end of the centrifugal wind wheel 2 by the air guide ring 3, so that the effective air inlet amount of the centrifugal wind wheel 2 can be increased.

The utility model discloses an in some embodiments, refer to figure 3, axial minimum distance between the terminal surface of the air-out end of wind-guiding circle 3 and the terminal surface of the air inlet end of centrifugal wind wheel 2 is H, and H satisfies: h is more than or equal to 5mm and less than or equal to 8 mm. Specifically, the axial distance between the air outlet end of the air guide ring 3 and the air inlet end of the centrifugal wind wheel 2 in the axial direction also needs to be taken within a reasonable interval, otherwise, the use of the ceiling fan 100 is also affected. For example, when H is too small, that is, the axial coincidence degree between the wind guide ring 3 and the centrifugal wind wheel 2 shown in fig. 3 is too small, in this case, a part of the airflow guided to the wind inlet end of the centrifugal wind wheel 2 by the wind outlet end of the wind guide ring 3 is likely to leak from the gap between the wind guide ring and the centrifugal wind wheel, so that the effective wind inlet amount of the centrifugal wind wheel 2 is reduced, and the heat exchange effect of the ceiling fan 100 is affected; when H is too large, that is, the axial overlap ratio between the wind guide ring 3 and the centrifugal wind wheel 2 shown in fig. 3 is too large, in this case, because the centrifugal wind wheel 2 of the ceiling fan 100 is often mounted on the output shaft of the motor 6, and the output shaft of the motor 6 has inevitable small movement, that is, axial play, in the axial direction during operation, the centrifugal wind wheel 2 has position fluctuation in the axial direction, so that the blades of the centrifugal wind wheel 2 easily collide with the wind guide ring 3 in the axial direction, and the centrifugal wind wheel 2 or the wind guide ring 3 is broken; therefore, in order to take the assembling effect of the centrifugal wind wheel 2 and the wind guide ring 3 and the heat exchange effect of the ceiling fan 100 into consideration, the value range of the axial minimum distance H is set to be more than or equal to 5mm and less than or equal to 8 mm.

Alternatively, H is 5.3mm, 5.5mm, 6mm, 6.2mm, 6.6mm, 6.8mm, 7mm, 7.3mm, 7.5mm, or 7.8mm, among other parameters.

In some embodiments of the utility model, referring to fig. 3, the minimum distance of the air-out end of wind-guiding circle 3 and the air inlet end of centrifugal wind wheel 2 in radial direction (for example, the left and right directions in fig. 2) is L, and L satisfies: l is more than or equal to 5mm and less than or equal to 10 mm. Specifically, in order to conveniently achieve the axial insertion installation of the air outlet end of the air guide ring 3 and the air inlet end of the centrifugal wind wheel 2, a gap needs to exist between the air outlet end of the air guide ring 3 and the air inlet end of the centrifugal wind wheel 2 in the radial direction, however, the value range of the gap distance needs to be in a reasonable interval, otherwise, the use of the ceiling fan 100 is affected. For example, when the gap is too small, firstly, assembly and transportation are inconvenient, namely, the centrifugal wind wheel 2 and the air guide ring 3 are easily collided in the assembly and transportation process, and secondly, in the use of the subsequent ceiling fan 100, the centrifugal wind wheel 2 is in a vibration state due to the existence of the driving parts such as the motor 6 and the like, so that position fluctuation exists in the radial direction of the centrifugal wind wheel 2, the centrifugal wind wheel 2 is easily collided with the air guide ring 3 in the radial direction, the noise is large, and the centrifugal wind wheel 2 or the air guide ring 3 is cracked; when the gap is too large, when the centrifugal wind wheel 2 extracts air, part of the air flow entering the centrifugal wind wheel 2 from the air outlet end of the air guide ring 3 is easily leaked from the gap, so that the effective air inlet amount of the centrifugal wind wheel 2 is reduced, and the heat exchange effect of the ceiling fan 100 is further influenced, therefore, in order to consider the assembling effect of the centrifugal wind wheel 2 and the air guide ring 3 and the heat exchange effect of the ceiling fan 100, the value range of the minimum distance L is set to be not less than 5mm and not more than 10 mm.

Optionally, L is a parameter of 5.5mm, 6mm, 6.5mm, 7mm, 7.4mm, 7.9mm, 8mm, 8.3mm, 8.5mm, 8.9mm, 9mm, 9.2mm, 9.5mm, or 9.8 mm.

In some embodiments of the present invention, as shown in fig. 5, along the flowing direction of the airflow, the wind guiding ring 3 includes an annular wind guiding section 31, an annular direct current section 32, and an annular flaring section 33, which are connected in sequence; the flow area of the flow guide section 31 is gradually reduced along the flow direction of the air flow, so that the flow speed of the air flow entering the air guide ring 3 is gradually increased when the air flow flows in the flow guide section 31, and the time of the air flow flowing through the flow guide section 31 can be shortened; the flow area of the flared section 33 is gradually increased, so that the flow velocity of the air flow is gradually reduced when the flared section 33 flows, but the air flow enters the centrifugal wind wheel 2 in a diffusion state, and can be better extracted by the centrifugal wind wheel 2.

In some embodiments of the present invention, as shown in fig. 5, at least one of the inner wall surface of the flow guide section 31 and the inner wall surface of the flared section 33 is formed as an arc surface in the flow direction of the air flow, whereby the loss of kinetic energy of the air flow when flowing in the flow guide section 31 or the flared section 33 can be reduced.

In some embodiments of the present invention, as shown in fig. 5, the flow area of the direct flow section 32 remains unchanged along the flow direction of the air flow, thereby facilitating the direct flow section 32 to better guide the air flow of the diversion section 31 to the flared section 33.

In some embodiments of the utility model, as shown in fig. 2, ceiling machine 100 still includes heat exchanger 4 and water collector 5, and heat exchanger 4 and water collector 5 are all established in casing 1, and heat exchanger 4 surrounds centrifugal wind wheel 2 in centrifugal wind wheel 2's circumference direction, and water collector 5 is the annular and is located heat exchanger 4's below in order to be used for receiving the comdenstion water.

Specifically, for example, referring to fig. 2, the heat exchanger 4 is vertically arranged, the upper end and the lower end of the heat exchanger are open and form a cylindrical accommodating cavity, the centrifugal wind wheel 2 is located in the accommodating cavity, so that the outlet air flow blown out along the radial direction of the centrifugal wind wheel 2 is blown to the heat exchanger 4 so as to be subjected to heat exchange through the heat exchanger 4, and the water pan 5 is arranged below the heat exchanger 4 and used for receiving condensed water. The structural form and the working principle of the heat exchanger 4 and the water-receiving tray 5 are well known to those skilled in the art and will not be described in detail here.

Optionally, the axis of the heat exchanger 4 is collinear with the axis of the centrifugal wind wheel 2, so that a relatively uniform radial interval can be provided between the centrifugal wind wheel 2 and the heat exchanger 4, and uniform heat exchange between the air flow discharged from the centrifugal wind wheel 2 and the heat exchanger 4 can be realized.

In some embodiments of the present invention, the air guiding ring 3 is mounted to the water pan 5. Specifically, for example, referring to fig. 2, the air guide ring 3 is located above the water pan 5, so that the water pan 5 can also protect the air guide ring 3, and the service life of the air guide ring 3 is prolonged. Of course, the present invention is not limited to this, and the wind scooper 3 may be mounted on the panel member 13 mentioned below.

In some optional embodiments of the present invention, the wind guiding ring 3 is connected to the water receiving tray 5 in a clamping manner. Therefore, the detachable arrangement between the air guide ring 3 and the water pan 5 is convenient, and the maintenance and the replacement are convenient.

Particularly, for example, be equipped with the buckle on the wind-guiding circle 3, be equipped with the draw-in groove on the water collector 5, in buckle joint income draw-in groove alright in order to provide reliable, high-quality fastening position, the assembling process who detains the position is simple moreover, generally only needs an inserted action, and is swift simple and convenient, can improve the assembly efficiency of the two.

Certainly, other connection modes can be adopted for detachably connecting the air guide ring 3 and the water pan 5, for example, a screw mode is adopted for connection, and the connection mode can enable the connection between the air guide ring 3 and the water pan 5 to be firmer and more reliable. Specifically, which connection mode is adopted can be flexibly selected according to actual requirements.

In some embodiments of the utility model, smallpox machine 100 still includes annular connecting plate 7, and the radial inner of connecting plate 7 links to each other with the periphery wall of wind-guiding circle 3, and connecting plate 7 outwards extends along radial direction in order to link to each other with water collector 5 joint, and from this, connecting plate 7 is connected with wind-guiding circle 3 and water collector 5 respectively to can improve wind-guiding circle 3 and water collector 5's joint strength.

Here, it should be explained that radially outward means a direction toward away from the center axis of the air-guide ring 3 in the radial direction.

In particular, for example, with reference to fig. 2, the connecting plate 7 is annular in shape, and the radially inner end of the connecting plate 7 surrounds and is connected to the outer circumferential wall of the air deflector 3, wherein the connecting plate 7 extends radially outward to be snap-connected to the water pan 5. Optionally, a buckle is arranged on the connecting plate 7, a clamping groove is formed in the water pan 5, the connecting plate 7 is connected with the water pan 5 through a fastener such as a screw after the buckle and the clamping groove are pre-positioned, and therefore the connecting plate 7 and the water pan 5 can be conveniently mounted.

In some alternative embodiments of the present invention, the connecting plate 7 is a single piece, for example, the connecting plate 7 may be formed by injection molding, thereby improving the structural strength of the connecting plate 7, so that the connecting plate 7 is not easily damaged.

In some embodiments of the utility model, wind-guiding circle 3 and water collector 5 are integrated into one piece spare, from this, can improve the structural strength of wind-guiding circle 3 and water collector 5 for wind-guiding circle 3 and water collector 5 are not fragile.

The utility model discloses an in some embodiments, wind-guiding circle 3 and water collector 5 injection moulding spare as an organic whole, injection moulding's production speed is fast, efficient, from this, applicable in wind-guiding circle 3 and water collector 5's batch production.

In some embodiments of the utility model, referring to fig. 2 and 5, the axial minimum distance between the terminal surface of the air inlet end of centrifugal wind wheel 2 and the terminal surface of the air inlet end of wind-guiding circle 3 is N, and N satisfies: n is more than or equal to 10mm and less than or equal to 14 mm.

Specifically, for example, referring to fig. 2, the axial distance between the end surface of the air inlet end of the centrifugal wind wheel 2 and the end surface of the air inlet end of the air guide ring 3 needs to be a value within a reasonable interval, otherwise the use of the ceiling fan 100 is affected. For example, when the axial distance is too large, the length of the air duct of the air guide ring 3 is long, which easily causes air loss, and the effective air intake of the centrifugal wind wheel 2 is reduced, thereby affecting the heat exchange effect of the ceiling fan 100; when N is too small, the overlapping degree of the air outlet end of the air guide ring 3 and the air inlet end of the centrifugal wind wheel 2 in the axial direction is too large, and the centrifugal wind wheel 2 has position fluctuation in the axial direction, so that the centrifugal wind wheel 2 is easy to collide with the air guide ring 3 in the axial direction, and the centrifugal wind wheel 2 or the air guide ring 3 is cracked; therefore, in order to consider the assembling effect of the centrifugal wind wheel 2 and the wind guide ring 3 and the heat exchange effect of the ceiling fan 100, the value range of the axial minimum distance N between the end surface of the wind inlet end of the centrifugal wind wheel 2 and the end surface of the wind inlet end of the wind guide ring 3 is set to be 10mm or more and 14mm or less.

Alternatively, N may be a parameter of 10.5mm, 10.9mm, 11mm, 11.5mm, 12mm, 12.5mm, 12.8mm, 13mm, 13.5mm, or 13.9 mm.

In some embodiments of the present invention, as shown in fig. 1 and 2, the housing 1 includes: a chassis member 11, an annular case member 12 and a panel member 13. The axially upper end of the case member 12 is connected to the outer peripheral wall of the chassis member 11; the panel part 13 is arranged at the axial lower end of the box body part 12, and the panel part 13 is provided with an air inlet 1a and an air outlet 1b, wherein the air outlet 1b is positioned at the radial outer side of the air inlet 1a, and the air outlet 1b extends along the circumferential direction of the air inlet 1 a.

Specifically, for example, referring to fig. 2, a motor 6 is mounted on a chassis part 11, a centrifugal wind wheel 2 is mounted on an output shaft of the motor 6, an upper end of a box part 12 is detachably connected with an outer peripheral wall of the chassis part 11, and a space is left between the box part 12 and a heat exchanger 4, so that an air outlet duct is formed; the panel part 13 is located at the lower end of the box body part 12, the panel part 13 is detachably connected with the box body part 12, the air inlet 1a in the panel part 13 is right opposite to the air guide ring 3 located in the box body part 12, therefore, air can enter the air guide ring 3 through the air inlet 1a and is guided to the centrifugal wind wheel 2 by the air guide ring 3, airflow flows out from the centrifugal wind wheel 2 along the radial direction, flows to the heat exchanger 4 and exchanges heat with the heat exchanger 4, the airflow after heat exchange flows to the air outlet duct, and further flows into the indoor environment through the air outlet 1b located on the radial outer side of the air inlet 1 a.

In the description herein, references to the description of the terms "some embodiments," "alternative embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A ceiling mountable machine, comprising:

the air inlet is formed in the bottom of the shell;

the centrifugal wind wheel is arranged in the shell, the axial minimum distance between the inner top wall of the shell, which is opposite to the air inlet, and the centrifugal wind wheel is M, and M satisfies the following conditions: m is more than or equal to 10mm and less than or equal to 15 mm.

2. The ceiling fan of claim 1, further comprising an annular air guide ring positioned between the centrifugal wind wheel and the air inlet.

3. The ceiling machine according to claim 2, wherein one of the air outlet end of the air guide ring and the air inlet end of the centrifugal wind wheel extends into the other of the air outlet end of the air guide ring and the air inlet end of the centrifugal wind wheel.

4. The ceiling machine according to claim 3, wherein the axial minimum distance between the end surface of the air outlet end of the air guide ring and the end surface of the air inlet end of the centrifugal wind wheel is H, and the H satisfies the following conditions: h is more than or equal to 5mm and less than or equal to 8 mm.

5. The ceiling machine of claim 2, wherein the air guiding ring comprises an annular flow guiding section, an annular direct-current section and an annular flaring section which are connected in sequence along the flowing direction of the airflow;

the flow guide section is arranged on the outer wall of the shell, and the flow guide section is arranged on the outer wall of the shell.

6. A ceiling machine as claimed in claim 5, characterised in that at least one of the inner wall surface of the flow-guiding section and the inner wall surface of the flared section is formed as a cambered surface in the flow direction of the airflow.

7. A ceiling machine according to claim 5, characterized in that the flow area of the straight flow section is kept constant in the flow direction of the air flow.

8. The ceiling machine according to claim 5, further comprising a heat exchanger and a water pan, wherein the heat exchanger and the water pan are both disposed in the housing, the heat exchanger surrounds the centrifugal wind wheel in a circumferential direction of the centrifugal wind wheel, the water pan is annular and is located below the heat exchanger for receiving condensed water, and the air deflector is mounted to the water pan.

9. The ceiling machine according to claim 2, wherein the axial minimum distance between the end surface of the air inlet end of the centrifugal wind wheel and the end surface of the air inlet end of the air guide ring is N, and N satisfies the following conditions: n is more than or equal to 10mm and less than or equal to 14 mm.

10. A ceiling machine according to any of claims 1-9, characterised in that the housing comprises:

a chassis member;

an annular case member, an axially upper end of which is connected to an outer peripheral wall of the chassis member;

the panel part, the panel part is established the axial lower extreme of box part, be equipped with on the panel part air intake and air outlet, wherein, the air outlet is located the radial outside of air intake, the air outlet is followed the circumferential direction of air intake extends.