阅读说明：本技术 一种模块化风轮结构及空调器 (Modularization wind wheel structure and air conditioner ) 是由 古汤汤 王成 谢斌 杨亮 杜伟 李颖颖 黄坤鹏 范超 张磊 于 2020-05-29 设计创作，主要内容包括：本发明提供了一种模块化风轮结构及空调器,所述模块化风轮结构包括风轮模块,所述风轮模块包括：蜗壳,其适于与空调器内的安装板可拆卸连接,且所述蜗壳包括蜗壳本体和蜗壳端盖,所述蜗壳本体与所述蜗壳端盖可拆卸连接；风轮,其设置在所述蜗壳内；和连接轴,其沿所述风轮的轴线贯穿所述风轮并固定在所述风轮上；且所述连接轴适于与电机的电机轴或另一个所述连接轴连接。本发明的模块化风轮结构能够适用于更多不同型号的空调器,有效地扩大了模块化风轮结构的适用范围和通用性,从而降低了开发新产品的生产成本。(The invention provides a modularized wind wheel structure and an air conditioner, wherein the modularized wind wheel structure comprises a wind wheel module, and the wind wheel module comprises: the volute is suitable for being detachably connected with a mounting plate in the air conditioner and comprises a volute body and a volute end cover, and the volute body is detachably connected with the volute end cover; a wind wheel disposed within the volute; the connecting shaft penetrates through the wind wheel along the axis of the wind wheel and is fixed on the wind wheel; and the connecting shaft is suitable for being connected with a motor shaft of the motor or the other connecting shaft. The modular wind wheel structure can be suitable for more air conditioners with different models, and effectively enlarges the application range and the universality of the modular wind wheel structure, thereby reducing the production cost of developing new products.)

1. A modular wind wheel structure, characterized in that it comprises a wind wheel module (3), said wind wheel module (3) comprising:

the volute (31) is suitable for being detachably connected with a mounting plate (1) in the air conditioner, the volute (31) comprises a volute body (312) and a volute end cover (313), and the volute body (312) is detachably connected with the volute end cover (313);

a wind wheel (32) disposed within the volute (31);

the connecting shaft (33) penetrates through the wind wheel (32) along the axis of the wind wheel (32) and is fixed on the wind wheel (32);

and the connecting shaft (33) is suitable for being connected with a motor shaft (22) of the motor (21) or the other connecting shaft (33).

2. The modular wind wheel structure according to claim 1, characterized in that the end of the volute (31) in the axial direction of the wind wheel (32) is provided with a support rib (311), the support rib (311) is arranged on the volute body (312) and/or the volute end cover (313), and the connecting shaft (33) is provided with a limit surface (331); the side face, facing one side of the wind wheel (32), of the support rib (311) is attached to the limiting face (331) so as to limit the connecting shaft (33) to move in the volute (31) along the axial direction of the connecting shaft (33).

3. The modular wind wheel structure according to claim 1, characterized in that a buckle (3121) is provided on the volute body (312), a snap groove (3131) is provided on the volute end cover (313) at a position corresponding to the buckle (3121), and/or the snap groove (3131) is provided on the volute body (312), the buckle (3121) is provided on the volute end cover (313) at a position corresponding to the snap groove (3131); and the volute body (312) and the volute end cover (313) are clamped through the buckle (3121) and the clamping groove (3131).

4. The modular wind wheel structure according to claim 3, wherein a seam allowance structure (314) is further provided at the connection position of the volute body (312) and the volute end cover (313), and the volute body (312) and the volute end cover (313) are connected in a sealing manner at the seam allowance structure (314).

5. A modular wind wheel structure according to claim 1, characterized in that the connection shaft (33) is integrated with the wind wheel (32).

6. A modular wind wheel structure according to any of claims 1-4, characterized in that it further comprises a coupling (4), the connection shaft (33) being adapted to be connected with the motor shaft (22) through the coupling (4), and the connection shafts (33) of adjacent wind wheel modules (3) being adapted to be connected through the coupling (4).

7. The modular wind wheel structure according to claim 6, characterized in that both ends of the connection shaft (33) are respectively provided with a first fixing plane (332), and the coupling (4) and the connection shaft (33) are fixed at the first fixing planes (332) by fasteners; and/or two ends of the motor shaft (22) are respectively provided with a second fixing plane (221), and the coupler (4) and the motor shaft (22) are fixed at the second fixing planes (221) through fasteners.

8. The modular wind wheel structure according to any of claims 1-4, characterized in that the wind wheel (32) comprises a hub (322), blades (321) arranged on the hub (322), and a shaft sleeve (323) arranged in the hub (322) and sleeved on the connecting shaft (33), and the connecting shaft (33) passes through the shaft sleeve (323) and extends out from both ends of the wind wheel (32).

9. The modular wind wheel structure according to claim 8, characterized in that a first positioning structure is provided between the hub (322) and the bushing (323), said first positioning structure being adapted to limit the axial movement of the bushing (323) within the hub (322) along the bushing (323); and/or a second positioning structure is arranged between the shaft sleeve (323) and the connecting shaft (33), and the second positioning structure is suitable for limiting the connecting shaft (33) to move in the shaft sleeve (323) along the axial direction of the connecting shaft (33).

10. A modular wind wheel structure according to claim 9, wherein the first positioning structures are first positioning protrusions (324) and first positioning grooves (325); the first positioning protrusion (324) is arranged on the hub (322), the first positioning groove (325) is arranged on the shaft sleeve (323), and/or the first positioning groove (325) is arranged on the hub (322), and the first positioning protrusion (324) is arranged on the shaft sleeve (323); and the first positioning bulge (324) is clamped with the first positioning groove (325).

11. The modular wind wheel structure according to claim 9 or 10, wherein the second positioning structure is a second positioning protrusion (333) and a second positioning groove (326); the second positioning protrusion (333) is arranged on the connecting shaft (33), the second positioning groove (326) is arranged on the shaft sleeve (323), and/or the second positioning groove (326) is arranged on the connecting shaft (33), and the second positioning protrusion (333) is arranged on the shaft sleeve (323); and the second positioning bulge (333) is clamped with the second positioning groove (326).

12. An air conditioner comprising a modular wind wheel structure according to any of claims 1-11.

Technical Field

The invention relates to the technical field of air conditioners, in particular to a modularized wind wheel structure and an air conditioner.

Background

At present, for example, an air conditioner of a ducted air conditioner has a fan assembly, the fan assembly includes a volute mounting plate, a plurality of wind wheels, a plurality of volutes, a motor and a connecting shaft, the number of the wind wheels corresponds to the number of the volutes, the volutes are mounted on the volute mounting plate, the wind wheels are mounted in the volutes, the connecting shaft is connected with the motor and passes through the plurality of wind wheels, and the motor drives the plurality of wind wheels to rotate synchronously. However, the structure of the fan assembly is fixed, and the number of the wind wheels cannot be increased or reduced, for example, some wind tube machines need two wind wheels, some wind tube machines need three wind wheels, and the fan assembly between the two wind tube machines cannot be used in common, so that the production cost of developing new products is increased.

Disclosure of Invention

The invention solves the problems that: how to improve the commonality of fan subassembly.

In order to solve the above problems, the present invention provides a modular wind wheel structure, comprising a wind wheel module, wherein the wind wheel module comprises:

the volute is suitable for being detachably connected with a mounting plate in the air conditioner and comprises a volute body and a volute end cover, and the volute body is detachably connected with the volute end cover;

a wind wheel disposed within the volute;

the connecting shaft penetrates through the wind wheel along the axis of the wind wheel and is fixed on the wind wheel;

and the connecting shaft is suitable for being connected with a motor shaft of the motor or the other connecting shaft.

Compared with the prior art, the invention takes a volute, a wind wheel and a connecting shaft as a wind wheel module, so that each wind wheel module is provided with a connecting shaft, thus, when the number of the wind wheels in the fan assembly needs to be increased, only one wind wheel module needs to be installed on the installation plate, and when the number of the wind wheels in the fan assembly needs to be reduced, only one wind wheel module needs to be detached from the installation plate without replacing the whole fan assembly, so that the modularized wind wheel structure can be suitable for more air conditioners with different models, the application range and the universality of the modularized wind wheel structure are effectively expanded, and the production cost for developing new products is reduced; and the volute is of a left-right split structure, compared with the existing volute which is of an up-down split structure, the volute is of a split structure without a molded line direction, the molded line integrity of the volute can be guaranteed, the air channel structure of the volute is optimized, meanwhile, the inner surface of the air channel of the volute is not provided with gaps or unevenness, and abnormal sounds such as squeaking and the like can be prevented when airflow in the volute flows.

Optionally, a support rib is arranged at the end of the volute in the axial direction of the wind wheel, the support rib is arranged on the volute body and/or the volute end cover, and a limiting surface is arranged on the connecting shaft; the side face, facing the wind wheel, of the support rib is attached to the limiting face so as to limit the connecting shaft to move in the volute along the axial direction of the connecting shaft.

Therefore, the support ribs can support the left end and/or the right end of the connecting shaft when the wind wheel and the connecting shaft are installed in the volute, and the wind wheel is prevented from falling into the volute to influence assembly in the process of installing the wind wheel; moreover, after one end of the connecting shaft is connected with a motor shaft of the motor, the other end of the connecting shaft can be supported at the end part of the volute under the action of the supporting rib, so that the connecting shaft is prevented from shaking greatly when the motor drives the connecting shaft to rotate, and the connecting shaft is prevented from swinging greatly; meanwhile, when the connecting shaft extends out of the left end and the right end of the volute, the limiting surface can be attached to the side face, facing the wind wheel, of the support rib, the connecting shaft is prevented from being separated from the volute from the end portion of the volute along the axial direction of the connecting shaft, and therefore the connecting shaft and the wind wheel cannot move in the volute along the axial direction of the connecting shaft.

Optionally, a buckle is arranged on the volute body, a clamping groove is arranged at a position, corresponding to the buckle, on the volute end cover, and/or the clamping groove is arranged on the volute body, and the buckle is arranged at a position, corresponding to the clamping groove, on the volute end cover; and the volute body and the volute end cover are clamped through the buckle and the clamping groove.

So, the spiral case body realizes dismantling the connection through the joint of buckle and draw-in groove with the spiral case end cover, and simple structure not only realizes easily, easy dismounting moreover.

Optionally, a spigot structure is further disposed on the volute body, and the volute body and the volute end cover are in sealed connection at the spigot structure.

Therefore, the volute body and the volute end cover form sealing connection in the spigot structure position in an inserting mode, so that air flow in the volute is prevented from leaking from the connection position of the volute body and the volute end cover, and the air outlet efficiency of the fan is improved.

Optionally, the connecting shaft is integrally formed with the wind wheel.

Like this, through being integrated into one piece with connecting axle and wind wheel design for be connected between connecting axle and the wind wheel more firm, in addition, set connecting axle and wind wheel to an overall structure, reduced the spare part quantity of wind wheel module, thereby can further make things convenient for in the fan subassembly to the change of wind wheel module or increase and decrease the operation.

Optionally, the wind turbine further comprises a coupling, the connecting shaft is suitable for being connected with the motor shaft through the coupling, and the connecting shafts of the wind turbine modules can be connected with each other through the coupling.

Therefore, after the wind wheel modules are connected with the motor shaft of the motor through the coupler, or after two adjacent wind wheel modules are connected through the coupler, the wind wheels of the wind wheel modules are all connected with the motor shaft of the motor through the connecting shafts, and the connecting shafts are all coaxially arranged with the motor shaft, so that the energy loss in the transmission process (namely the process that the motor drives the wind wheels through the coupler) is reduced, and meanwhile, the motor and the wind wheels can keep the same rotating speed to ensure the air output of the wind pipe machine; in addition, the shaft coupling is arranged, so that the connection between the wind wheel module and the motor or between two adjacent wind wheel modules can be disconnected only by disconnecting the connection between the connecting shaft (or the motor shaft) and the shaft coupling, and the disassembly and the assembly of the modularized wind wheel structure are facilitated.

Optionally, two ends of the connecting shaft are respectively provided with a first fixing plane, and the coupler and the connecting shaft are fixed at the first fixing planes through fasteners; and/or two ends of the motor shaft are respectively provided with a second fixing plane, and the coupler and the motor shaft are fixed at the second fixing planes through fasteners.

In this way, the first fixing plane is arranged so that the end, abutted against the connecting shaft, of the fastener is in surface-to-surface contact with the connecting shaft at the first fixing plane, the contact area between the fastener and the connecting shaft can be increased, relative rotation between the fastener and the connecting shaft can be prevented, and the stability of connection between the connecting shaft and the coupler is ensured; through setting up the fixed plane of second so that the one end of fastener and motor shaft butt and motor shaft form the face-to-face contact in the fixed plane department of second, can increase the area of contact between fastener and the motor shaft, can prevent to take place relative rotation between fastener and the motor shaft moreover to stability when being connected between assurance connecting axle and the shaft coupling.

Optionally, the wind wheel includes a hub, a fan blade disposed on the hub, and a shaft sleeve disposed in the hub and sleeved on the connecting shaft, and the connecting shaft passes through the shaft sleeve and extends out from two ends of the wind wheel.

Therefore, the shaft sleeve is arranged in the hub and sleeved on the connecting shaft, and when the hub and the connecting shaft rotate relatively due to insecure connection, the connecting shaft can be prevented from being worn due to direct contact with the hub, so that the connecting shaft is protected.

Optionally, a first positioning structure is arranged between the hub and the shaft sleeve, and the first positioning structure is suitable for limiting the shaft sleeve to move in the hub along the axial direction of the shaft sleeve; and/or a second positioning structure is arranged between the shaft sleeve and the connecting shaft and is suitable for limiting the connecting shaft to move in the shaft sleeve along the axial direction of the connecting shaft.

Therefore, the first positioning structure is arranged between the hub and the shaft sleeve to limit the shaft sleeve to move in the hub along the axial direction of the shaft sleeve, so that the shaft sleeve can be prevented from being separated from the hub when rotating along with the connecting shaft on one hand, and the shaft sleeve and the hub can be prevented from rotating relatively on the other hand; and through being equipped with second location structure between axle sleeve and connecting axle to the restriction connecting axle is along the axial displacement of connecting axle in the wind wheel, prevents to take place relative rotation and along the ascending translation of connecting axle axial between axle sleeve and the connecting axle, thereby guarantees the stability when being connected between wheel hub and the axle sleeve and/or between axle sleeve and the connecting axle.

Optionally, the first positioning structure is a first positioning protrusion and a first positioning groove; the first positioning protrusion is arranged on the hub, and the first positioning groove is arranged on the shaft sleeve, and/or the first positioning groove is arranged on the hub, and the first positioning protrusion is arranged on the shaft sleeve; and the first positioning bulge is clamped with the first positioning groove.

Like this, through set up first location arch and first constant head tank between wheel hub and axle sleeve and prevent that the axle sleeve from breaking away from wheel hub when rotating along with the connecting axle, simultaneously, prevent to take place relative rotation between axle sleeve and the wheel hub.

Optionally, the second positioning structure is a second positioning protrusion and a second positioning groove; the second positioning protrusion is arranged on the connecting shaft, and the second positioning groove is arranged on the shaft sleeve, and/or the second positioning groove is arranged on the connecting shaft, and the second positioning protrusion is arranged on the shaft sleeve; and the second positioning bulge is clamped with the second positioning groove.

Therefore, the shaft sleeve and the connecting shaft are prevented from rotating relatively and moving upwards along the axial direction of the connecting shaft by arranging the second positioning protrusions and the second positioning grooves between the shaft sleeve and the connecting shaft, so that the motor driving motor shaft is improved, and the stability of the connecting shaft in rotation is further improved.

In order to solve the above problems, the present invention further provides an air conditioner, including any of the above modular wind wheel structures.

The advantages of the air conditioner and the modular wind wheel structure are the same compared with the prior art, and are not described again.

Drawings

FIG. 1 is a schematic structural diagram of a fan assembly according to an embodiment of the present disclosure;

figure 2 is an exploded view of a wind wheel module according to an embodiment of the invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is an enlarged view of a portion B of FIG. 2;

FIG. 5 is a schematic structural diagram of a wind wheel and a motor connected through a coupling in the embodiment of the invention;

figure 6 is a schematic cross-sectional view of a wind turbine module according to an embodiment of the invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at C;

FIG. 8 is an enlarged view of a portion of FIG. 6 at D;

FIG. 9 is an enlarged view of a portion of FIG. 6 at E;

FIG. 10 is a schematic view of the structure of a rotor assembled with a connecting shaft according to an embodiment of the present invention;

FIG. 11 is a schematic structural view of a connecting shaft according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a motor shaft in an embodiment of the present invention.

Description of reference numerals:

1-mounting a plate; 2-motor module, 21-motor, 22-motor shaft, 221-second fixed plane, 23-motor support; 3-a wind wheel module, 31-a volute, 311-a support rib, 312-a volute body, 3121-a buckle, 313-a volute end cover, 3131-a clamping groove, 314-a spigot structure, 32-a wind wheel, 321-a fan blade, 322-a hub, 323-a shaft sleeve, 324-a first positioning bulge, 325-a first positioning groove, 326-a second positioning groove, 33-a connecting shaft, 331-a limiting surface, 332-a first fixing plane and 333-a second positioning bulge; 4-a coupler.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "high", "low", and the like indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and in a coordinate system XYZ provided herein, the X-axis forward direction represents the front, the X-axis reverse direction represents the rear, the Y-axis forward direction represents the right, the Y-axis reverse direction represents the left, the Z-axis forward direction represents the upper, and the Z-axis reverse direction represents the lower; this is done solely for the purpose of facilitating the description of the invention and simplifying the description, and is not intended to indicate or imply that the apparatus referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be taken as limiting the invention.

In the prior art, a fan assembly of an air conditioner, such as a ducted air conditioner, generally includes a plurality of wind wheels 32, a plurality of volutes 31 and a wind wheel connecting shaft, and when assembling the fan assembly, the plurality of wind wheels 32 are all mounted on the wind wheel connecting shaft, and then the wind wheel connecting shaft is connected with a motor shaft 22 of a motor 21 to realize connection between the plurality of wind wheels 32 and the motor 21. For air conditioners of different models, the required number of the wind wheels 32 is different, and in the existing fan assembly, a plurality of wind wheels 32 are connected through a wind wheel connecting shaft, so that different fan assemblies need to be produced according to different numbers of the wind wheels 32 due to the limitation of the structure, so that the use requirements of air conditioners of different models are met, the application range of the fan assemblies is small, and the universality is poor.

Referring to fig. 1 and 2, an embodiment of the present invention provides a modular wind turbine structure, including a wind turbine module 3, where the wind turbine module 3 includes:

the volute 31 is suitable for being detachably connected with a mounting plate 1 in the air conditioner, the volute 31 comprises a volute body 312 and a volute end cover 313, and the volute body 312 is detachably connected with the volute end cover 313;

a wind wheel 32 disposed within the volute 31;

the connecting shaft 33 penetrates through the wind wheel 32 along the axis of the wind wheel 32 and is fixed on the wind wheel 32;

and the connecting shaft 33 is adapted to be connected with the motor shaft 22 of the motor 21 or another connecting shaft 33.

In this embodiment, a volute 31, a wind wheel 32 and a connecting shaft 33 are used as a wind wheel module 3, so that each wind wheel module 3 has a connecting shaft 33, and the connecting shaft 33 is disposed coaxially with the motor shaft 22 of the motor 21. Thus, when a plurality of wind wheel modules 3 are arranged in the fan assembly, the coaxiality of the wind wheels 32 and the motor 21 can be ensured because the motor shaft 22 of the motor 21 and the plurality of connecting shafts 33 are coaxially arranged, so that the wind wheels 32 are ensured to have the same rotating speed; meanwhile, the connecting shaft 33 of each wind wheel module 3 can be connected with the connecting shaft 33 of another wind wheel module 3 and also can be connected with the motor shaft 22 of the motor 21. Moreover, the volute casing 31 in this embodiment is divided into a volute casing body 312 and a volute casing end cover 313, the volute casing end cover 313 is located at the left end or the right end of the volute casing 31 and is detachably connected with the volute casing body 312, so that the volute casing 31 is in a left-right split structure, wherein an end portion of the volute casing 31 located in the axial direction (i.e., the Y-axis direction in fig. 2) of the wind wheel 32 is the left end or the right end of the volute casing 31.

Therefore, when the number of the wind wheels 32 in the fan assembly needs to be increased, only one wind wheel module 3 needs to be installed on the installation plate 1, and when the number of the wind wheels 32 in the fan assembly needs to be reduced, only one wind wheel module 3 needs to be detached from the installation plate 1 without replacing the whole fan assembly, so that the modularized wind wheel structure can be suitable for more air conditioners with different models, the application range and the universality of the modularized wind wheel structure are effectively expanded, and the production cost of developing new products is reduced; moreover, the volute casing 31 is of a left-right split structure, which is compared with the existing volute casing 31 of a top-bottom split structure, so that the volute casing 31 has no profile direction split structure, the profile integrity of the volute casing 31 can be ensured, the air duct structure of the volute casing 31 is optimized, and meanwhile, the air duct inner surface of the volute casing 31 does not have gaps or unevenness, so that abnormal sounds such as squeaking and the like can be prevented from being generated when the airflow in the volute casing 31 flows.

Further, a motor 21, a motor shaft 22 and a motor bracket 23 are used as a motor module 2, the motor bracket 23 is adapted to be detachably connected to the mounting plate 1, and the motor module 2 is adapted to be connected to the connecting shaft 33 of the wind turbine module 3 adjacent to the motor module 2 via the motor shaft 22.

Like this for when fan subassembly need set up a plurality of motors 21, can realize through directly installing a plurality of motor module 2 on mounting panel 1, also need not to go to develop new product in addition, further reduced the manufacturing cost who develops new product.

Optionally, as shown in fig. 2, 4, 6, and 7, a support rib 311 is disposed at an end of the volute 31 in the axial direction of the wind wheel 32, the support rib 311 is disposed on the volute body 312 and/or the volute end cover 313, and a limit surface 331 is disposed on the connection shaft 33; the side surface of the support rib 311 facing one side of the wind wheel 32 is attached to the limit surface 331 to limit the axial movement of the connecting shaft 33 in the volute 31 along the connecting shaft 33.

In this embodiment, the support rib 311 may be only disposed on the volute end cover 313, or only disposed on a side of the volute body 312 away from the volute end cover 313, or disposed on both the volute end cover 313 and the volute body 312, that is, by disposing the support rib 311 on the left end and/or the right end of the volute 31, the left end or the right end of the volute 31 is supported, so as to prevent the left end or the right end of the volute 31 from collapsing due to lack of support, and support the left end and/or the right end of the connecting shaft 33 when the wind wheel 32 and the connecting shaft 33 are installed in the volute 31, so as to prevent the wind wheel 32 from falling into the volute 31 during installation of the wind wheel 32 and affecting assembly; moreover, after one end of the connecting shaft 33 is connected with the motor shaft 22 of the motor 21, the other end of the connecting shaft 33 can be supported at the end of the volute 31 under the action of the supporting rib 311, so that the connecting shaft 33 is prevented from shaking greatly when the motor 21 drives the connecting shaft 33 to rotate away from the end connected with the motor shaft 22. As shown in fig. 4, the limiting surface 331 on the connecting shaft 33 may be formed by providing a shoulder structure at two ends of the connecting shaft 33, and at this time, the limiting surface 331 is an annular plane at the shoulder structure where the diameter of the connecting shaft 33 changes abruptly; the limiting surface 331 on the connecting shaft 33 may also be formed by a circle of boss structure disposed at a position on the connecting shaft 33 corresponding to the support rib 311, and at this time, the limiting surface 331 is a side surface of the boss structure facing one side of the support rib 311. And the limiting surface 331 and the side surface of the support rib 311 facing one side of the wind wheel 32 are parallel to each other, so that when the connecting shaft 33 extends out from the left end and the right end of the volute casing 31, the limiting surface 331 and the side surface of the support rib 311 facing one side of the wind wheel 32 can be attached to each other, the connecting shaft 33 is prevented from separating from the volute casing 31 from the end part of the volute casing 31 along the axial direction of the connecting shaft 33, and the connecting shaft 33 and the wind wheel 32 cannot move along the axial direction of the connecting shaft 33 in the volute casing 31.

Optionally, as shown in fig. 2 and fig. 3, a buckle 3121 is disposed on the volute body 312, a clamping groove 3131 is disposed on the volute end cover 313 at a position corresponding to the buckle 3121, and/or a clamping groove 3131 is disposed on the volute body 312, and a buckle 3121 is disposed on the volute end cover 313 at a position corresponding to the clamping groove 3131; and the volute body 312 and the volute end cover 313 are clamped at the buckle 3121 and the clamping groove 3131.

In this embodiment, a plurality of buckles 3121 and snap grooves 3131 are provided, where a buckle 3121 is provided on the volute body 312, and a snap groove 3131 is provided on the volute end cover 313; or a clamping groove 3131 is arranged on the volute body 312, and a buckle 3121 is arranged on the volute end cover 313; the volute body 312 and the volute end cover 313 may be provided with a snap 3121 and a snap 3131. So, spiral case body 312 realizes dismantling the connection with spiral case end cover 313 through the joint of buckle 3121 with draw-in groove 3131, and simple structure not only realizes easily, easy dismounting moreover.

Optionally, as shown in fig. 2, 3, 6 and 9, a seam allowance structure 314 is further provided at a connection position of the volute body 312 and the volute end cover 313, and the volute body 312 and the volute end cover 313 are in sealed connection at the seam allowance structure 314.

In this embodiment, a connection portion between the volute body 312 and the volute end cover 313 is concave, that is, one end of the volute body 312 facing the volute end cover 313 is provided with a circle of grooves along a profile of the volute body 312, and one end of the volute end cover 313 connected to the volute body 312 extends towards the volute body 312 to form a circle of protrusions, the protrusions on the volute end cover 313 can be inserted into the grooves on the volute body 312, and an end surface of the protrusion far from the end connected to the volute end cover 313 and a lower end surface of the protrusion are abutted against groove walls of the grooves on the volute body 31, so that the protrusions on the volute end cover 313 and the grooves on the volute body 31 are in insertion fit to form a seam allowance structure 314, so that the volute body 312 and the volute end cover 313 are in insertion fit to form a sealing connection at the seam allowance structure 314 to prevent an airflow in the volute 31 from leaking from the connection portion between the volute body 312 and the volute end cover 313, thereby improving the air-out efficiency of the fan.

Optionally, the connecting shaft 33 is integrally formed with the wind wheel 32. Like this, through designing connecting axle 33 and wind wheel 32 as integrated into one piece for being connected between connecting axle 33 and the wind wheel 32 is more firm, moreover, sets connecting axle 33 and wind wheel 32 to an overall structure, has reduced the spare part quantity of wind wheel module 3, thereby can further make things convenient for in the fan subassembly to the change of wind wheel module 3 or increase and decrease the operation.

Optionally, as shown in fig. 5, the modular wind wheel structure further includes a coupling 4, the connecting shaft 33 is adapted to be connected with the motor shaft 22 through the coupling 4, and the connecting shafts 33 of the plurality of wind wheel modules 3 may be connected with each other through the coupling 4.

In this embodiment, the coupling 4 may be disposed between the wind wheel module 3 and the motor module 2, and is used to connect the wind wheel module 3 and the motor module 2, or may be disposed between two adjacent wind wheel modules 3, and is used to connect two adjacent wind wheel modules 3, and the coupling 4 may be disposed between the wind wheel module 3 and the motor module 2 and between two adjacent wind wheel modules 3. Thus, after the wind wheel modules 3 are connected with the motor module 2 through the coupler 4 and after two adjacent wind wheel modules 3 are connected through the coupler 4, the wind wheels 32 of the wind wheel modules 3 are all connected with the motor shaft 22 of the motor module 2 through the connecting shafts 33, and the connecting shafts 33 are all arranged coaxially with the motor shaft 22, so that the energy loss in the transmission process (namely the process that the motor 21 drives the wind wheels 32 through the coupler 4) is reduced, and meanwhile, the motor 21 and the wind wheels 32 can keep the same rotating speed conveniently, so that the air output of the wind pipe machine is ensured; moreover, the coupler 4 is arranged, so that the connection between the wind wheel module 3 and the motor module 2 or between two adjacent wind wheel modules 3 can be disconnected only by disconnecting the connection shaft 33 (or the motor shaft 22) and the coupler 4, and the disassembly and the installation of the modularized fan structure are facilitated.

Alternatively, as shown in fig. 11 and 12, both ends of the connecting shaft 33 are respectively provided with a first fixing plane 332, and the coupler 4 and the connecting shaft 33 are fixed at the first fixing planes 332 by fasteners; and/or, both ends of the motor shaft 22 are respectively provided with a second fixing plane 221, and the coupling 4 and the motor shaft 22 are fixed at the second fixing plane 221 through a fastener.

In this embodiment, mounting holes are formed at both ends of the coupling 4, after the end of the connecting shaft 33 is mounted in the coupling 4, fasteners such as screws or bolts are screwed into the mounting holes on the coupling 4 to achieve fixed connection between the coupling 4 and the connecting shaft 33, and similarly, after the end of the motor shaft 22 is mounted in the coupling 4, fasteners such as screws or bolts are screwed into the mounting holes on the coupling 4 to achieve fixed connection between the coupling 4 and the motor shaft 22. Specifically, the connecting shaft 33 and the motor shaft 22 are both cylindrical to reduce resistance during rotation, the two ends of the connecting shaft 33 are respectively provided with a first fixing plane 332, the first fixing planes 332 are parallel to the axis of the connecting shaft 33, one or more first fixing planes 332 on the connecting shaft 33 are arranged, the coupler 4 is cylindrical, the two ends of the coupler 4 are respectively provided with a first accommodating cavity and a second accommodating cavity which are respectively used for accommodating the connecting shaft 33 and the motor shaft 22, and the shape of the first accommodating cavity is matched with the shape of one end of the connecting shaft 33, which is arranged in the first accommodating cavity, so as to ensure that the connecting shaft 33 and the coupler 4 cannot rotate relative to each other after one end of the connecting shaft 33 is arranged in the coupler 4, thereby ensuring that the connecting shaft 33 and the coupler 4 have the same rotating speed; similarly, two ends of the motor shaft 22 are respectively provided with a second fixing plane 221, the second fixing planes 221 are parallel to the axis of the motor shaft 22, one or more second fixing planes 221 located on the motor shaft 22 are provided, and the shape of the second accommodating cavity of the coupling 4 is matched with the shape of the end of the motor shaft 22 inserted into the second accommodating cavity, so as to ensure that after the end of the motor shaft 22 is inserted into the coupling 4, the motor shaft 22 and the coupling 4 do not rotate relatively, thereby ensuring that the motor shaft 22 and the coupling 4 have the same rotating speed, and ensuring that the motor shaft 22 and the connecting shaft 33 have the same rotating speed.

In this way, by providing the first fixing plane 332 so that the end of the fastening member abutting against the connecting shaft 33 is in surface-to-surface contact with the connecting shaft 33 at the first fixing plane 332, the contact area between the fastening member and the connecting shaft 33 can be increased, and relative rotation between the fastening member and the connecting shaft 33 can be prevented, thereby ensuring the stability of the connection between the connecting shaft 33 and the coupling 4; through setting up second fixed plane 221 so that the fastener forms the face-to-face contact with motor shaft 22 in second fixed plane 221 department with the one end of motor shaft 22 butt, can increase the area of contact between fastener and the motor shaft 22, can prevent moreover that relative rotation from taking place between fastener and the motor shaft 22 to stability when guaranteeing to be connected between connecting axle 33 and the shaft coupling 4.

Optionally, as shown in fig. 6 and 10, the wind wheel 32 includes a hub 322, blades 321 disposed on the hub 322, and a shaft sleeve 323 disposed in the hub 322 and sleeved on the connecting shaft 33, where the connecting shaft 33 passes through the shaft sleeve 323 and extends out from two ends of the wind wheel 32.

In this embodiment, the connecting shaft 33 and the wind wheel 32 are not integrally formed, but fixed to a hub 322 of the wind wheel 32 through a bushing 323. Specifically, the blades 321 of the wind wheel 32 are arranged parallel to the axial direction of the wind wheel 32 and are uniformly distributed around the hub 322, the shaft sleeve 323 is embedded in the hub 322, and the connecting shaft 33 passes through the shaft sleeve 323 and extends out from two ends of the wind wheel 32, so that the connecting shaft 33 is connected with the motor shaft 22 of the motor 21 or the connecting shaft 33 of another wind wheel module 3. Thus, by providing the shaft sleeve 323 in the hub 322 and sleeving the shaft sleeve 323 on the connecting shaft 33, when the hub 322 and the connecting shaft 33 are connected insecurely and rotate relatively, the connecting shaft 33 can be prevented from being worn due to direct contact with the hub 322, thereby protecting the connecting shaft 33.

Optionally, as shown in fig. 6 and 9, a first positioning structure is disposed between the hub 322 and the shaft sleeve 323, and the first positioning structure is adapted to limit the shaft sleeve 323 from moving in the axial direction of the shaft sleeve 323 inside the hub 322; and/or, a second positioning structure is arranged between the shaft sleeve 323 and the connecting shaft 33, and the second positioning structure is suitable for limiting the connecting shaft 33 to move in the shaft sleeve 323 along the axial direction of the connecting shaft 33.

In this embodiment, the first positioning structure is disposed between the hub 322 and the bushing 323 to limit the axial movement of the bushing 323 in the hub 322 along the bushing 323, so as to prevent the bushing 323 from being separated from the hub 322 when rotating with the connecting shaft 33, and prevent the bushing 323 and the hub 322 from rotating relatively; and by providing a second positioning structure between the bushing 323 and the connecting shaft 33 to limit the axial movement of the connecting shaft 33 within the bushing 323 along the connecting shaft 33, relative rotation between the bushing 323 and the connecting shaft 33 and translation in the axial direction of the connecting shaft 33 are prevented, thereby ensuring stability in connection between the hub 322 and the bushing 323 and/or between the bushing 323 and the connecting shaft 33.

Alternatively, as shown in fig. 6 and 9, the first positioning structure is a first positioning protrusion 324 and a first positioning groove 325; the first positioning protrusion 324 is arranged on the hub 322, and the first positioning groove 325 is arranged on the shaft sleeve 323, and/or the first positioning groove 325 is arranged on the hub 322, and the first positioning protrusion 324 is arranged on the shaft sleeve 323; and the first positioning protrusion 324 is engaged with the first positioning groove 325.

In this embodiment, the first positioning protrusion 324 and the first positioning groove 325 are provided between the hub 322 and the bushing 323 to prevent the bushing 323 from being separated from the hub 322 when rotating with the connecting shaft 33, and at the same time, prevent the bushing 323 from rotating relative to the hub 322.

Alternatively, as shown in fig. 6 and 9, the second positioning structure is a second positioning protrusion 333 and a second positioning groove 326; the second positioning protrusion 333 is arranged on the connecting shaft 33, the second positioning groove 326 is arranged on the shaft sleeve 323, and/or the second positioning groove 326 is arranged on the connecting shaft 33, and the second positioning protrusion 333 is arranged on the shaft sleeve 323; and the second positioning protrusion 333 is engaged with the second positioning groove 326.

In this embodiment, the second positioning protrusion 333 and the second positioning groove 326 are disposed between the sleeve 323 and the connecting shaft 33 to prevent the sleeve 323 and the connecting shaft 33 from rotating relatively and translating along the axial direction of the connecting shaft 33, so as to improve the stability of the motor 21 driving the motor shaft 22 and further driving the connecting shaft 33 to rotate.

The invention also provides an air conditioner, which aims to solve the problem of how to improve the universality of the fan assembly and comprises any modular wind wheel structure.

The air conditioner in this embodiment has a wind wheel module 3 formed by a volute 31, a wind wheel 32 and a connecting shaft 33, so that each wind wheel module 3 has a connecting shaft 33, and the connecting shaft 33 is coaxially disposed with the motor shaft 22 of the motor 21. Like this, when being equipped with a plurality of wind wheel modules 3 in the fan subassembly, because motor shaft 22 and the equal coaxial setting of a plurality of connecting axles 33 of motor 21, can guarantee the axiality of wind wheel 32 and motor 21 to guarantee that each wind wheel 32 has the same rotational speed. Meanwhile, the connecting shaft 33 of each wind wheel module 3 can be connected with the connecting shaft 33 of another wind wheel module 3 and also can be connected with the motor shaft 22 of the motor 21. Thus, when the number of the wind wheels 32 in the modular fan structure needs to be increased, only one wind wheel module 3 needs to be installed on the installation plate 1, and when the number of the wind wheels 32 in the modular fan structure needs to be reduced, only one wind wheel module 3 needs to be detached from the installation plate 1 without replacing the whole fan assembly, so that the modular fan structure can be suitable for more air conditioners with different models, the application range and the universality of the modular fan structure are effectively expanded, and the production cost of developing new products is reduced; moreover, the volute casing 31 is of a left-right split structure, which is compared with the existing volute casing 31 of a top-bottom split structure, so that the volute casing 31 has no profile direction split structure, the profile integrity of the volute casing 31 can be ensured, the air duct structure of the volute casing 31 is optimized, and meanwhile, the air duct inner surface of the volute casing 31 does not have gaps or unevenness, so that abnormal sounds such as squeaking and the like can be prevented from being generated when the airflow in the volute casing 31 flows.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.