CN112648233A

CN112648233A - Axial flow wind wheel, air conditioner and control method of air conditioner

Info

Publication number: CN112648233A
Application number: CN201910962192.7A
Authority: CN
Inventors: 张爱川; 闫长林; 丁鹏垒
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2021-04-13

Abstract

The invention discloses an axial flow wind wheel, an air conditioner and a control method of the air conditioner. The axial flow wind wheel can meet the differentiation requirements of different application occasions and has good applicability.

Description

Axial flow wind wheel, air conditioner and control method of air conditioner

Technical Field

The invention relates to the technical field of air conditioning equipment, in particular to an axial flow wind wheel, an air conditioner and a control method of the air conditioner.

Background

In the related technology, the air volume and the noise of the axial flow wind wheel in the air conditioner can be adjusted only by adjusting the rotating speed of the axial flow wind wheel, and when the axial flow wind wheel is used for the air conditioner, the air volume and the noise of the air conditioner cannot meet the differentiated requirements on the air volume and the noise under different use scenes, so that the use of the air conditioner is limited to a certain extent, and the air conditioner cannot realize automatic dust removal and defrosting.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the axial flow wind wheel provided by the invention can meet the differentiated requirements of different application occasions and has good applicability.

The invention also provides an air conditioner with the axial flow wind wheel.

The invention also provides a control method of the air conditioner.

An axial flow wind wheel according to a first aspect of the present invention includes: a hub; the blade, the blade is a plurality of, and is a plurality of the blade is followed wheel hub's circumference interval sets up, every the blade all rotationally locates wheel hub to the change the wind-guiding angle of blade.

According to the axial flow wind wheel, the blades are rotatably arranged on the hub to change the wind guide angle of the blades, so that the axial flow wind wheel can meet the differentiation requirements of different application occasions, and the practicability and the applicability of the axial flow wind wheel are improved.

According to some embodiments of the invention, each of the blades has an axis of rotation extending in a radial direction of the hub.

According to some embodiments of the invention, the hub has a first position-limiting portion thereon, and the blade has a second position-limiting portion thereon, and the first position-limiting portion and the second position-limiting portion are in position-limiting cooperation to limit the movement of the blade in the radial direction of the hub.

According to some embodiments of the invention, the axial flow wind wheel further comprises: and the driving mechanism is connected with the blades respectively to drive the blades to rotate.

According to some embodiments of the invention, the drive mechanism is configured to drive a plurality of said blades in synchronous rotation.

According to some embodiments of the invention, the drive mechanism comprises: a motor; and the transmission mechanism is connected between the motor and the plurality of blades so as to transmit the power of the motor to the plurality of blades simultaneously.

According to some embodiments of the invention, the transmission mechanism comprises: the driving gear is connected with the motor so as to be driven by the motor to rotate; a plurality of driven gears connected to inner edges of the plurality of blades, respectively; the intermediate gear is arranged between the driving gear and the driven gear and is respectively meshed with the driving gear and the driven gear.

According to some embodiments of the invention, the intermediate gear is formed in a ring-like structure and has an inner edge and an outer edge, the inner edge having a first gear tooth portion in meshing engagement with the driving gear, the outer edge having a second gear tooth portion in meshing engagement with the plurality of driven gears.

According to some embodiments of the invention, a central axis of the driving gear extends in an axial direction of the hub, the driving gear being formed as a cylindrical gear.

According to some embodiments of the invention, a central axis of the driven gear extends in a radial direction of the hub, the driven gear being formed as a bevel gear.

According to some embodiments of the invention, the hub defines a cavity therein, and the drive mechanism is mounted to the cavity.

An air conditioner according to a second aspect of the present invention includes: a first wind wheel being an axial wind wheel according to the above first aspect of the invention.

According to the air conditioner, by adopting the axial flow wind wheel, the air volume, the noise and the like of the air conditioner can be adjusted according to specific use occasions, so that the air conditioner can better meet the differentiated requirements of different occasions, and the practicability and the applicability of the air conditioner are effectively improved.

According to some embodiments of the invention, the air conditioner further comprises: the second wind wheel and the first wind wheel are arranged at intervals along the axial direction of the first wind wheel, and blades of the second wind wheel are fixedly arranged on a hub of the second wind wheel.

A control method of an air conditioner according to a third aspect of the present invention, the air conditioner being the air conditioner according to the above-described second aspect of the present invention, the control method comprising the steps of: the air conditioner runs, the first wind wheel blows air in the forward direction, when an air volume lifting instruction is received, the blades of the first wind wheel rotate to reduce the wind guide angle, and when a noise reduction instruction is received, the blades of the first wind wheel rotate to increase the wind guide angle.

The control method of the air conditioner is simple in control logic and convenient to implement, and can meet the differentiated requirements of different scenes on air volume, noise and the like.

According to some embodiments of the invention, the control method further comprises: when a dust removal and/or defrosting command is received, the blades of the first wind wheel rotate to enable the first wind wheel to blow air reversely.

According to some embodiments of the invention, the air conditioner further comprises: the second wind wheel and the first wind wheel are arranged at intervals along the axial direction of the first wind wheel, blades of the second wind wheel are fixedly arranged on a hub of the second wind wheel, and the control method further comprises the following steps: and when a dust removal and/or defrosting instruction is received, the first wind wheel blows air reversely, and the second wind wheel stops running.

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 schematic structural view of an axial flow wind wheel according to one embodiment of the present invention;

FIG. 2 is another schematic structural view of the axial flow wind turbine shown in FIG. 1;

FIG. 3 is a partial schematic view of the axial flow wind turbine shown in FIG. 1;

FIG. 4 is an enlarged view of portion A circled in FIG. 3;

FIG. 5 is yet another schematic view of the axial flow wind wheel shown in FIG. 1;

FIG. 6 is a partial schematic view of the axial flow wind wheel shown in FIG. 5;

fig. 7 is a schematic structural view of an air conditioner according to an embodiment of the present invention;

fig. 8 is another structural schematic view of the air conditioner shown in fig. 7;

fig. 9 is a schematic view of an air conditioner according to another embodiment of the present invention;

fig. 10 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;

fig. 11 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention;

fig. 12 is a flowchart illustrating a control method of an air conditioner according to still another embodiment of the present invention.

Reference numerals:

an air conditioner 200, an outdoor unit 200a,

A first wind wheel 101, a second wind wheel 102, a motor bracket 103, a motor 104,

Axial flow wind wheel 100, rotation axis 100a,

A hub 1, a cavity 1a, a first limit part 10,

A hub seat 11, a hub cover 12,

A blade 2, a rotation axis 2a, a second stopper 20,

An inner edge 20a, an outer edge 20b, an upstream end 20c, a downstream end 20d,

A driving mechanism 3, a motor 31, a transmission mechanism 32,

A driving gear 321, a driven gear 322, an intermediate gear 323,

Inner edge 3231, outer edge 3232, first wheel tooth 323a, second wheel tooth 323 b.

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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

An axial flow wind turbine 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1-3, the axial flow wind wheel 100 may include a hub 1 and a plurality of blades 2, where the plurality of blades 2 may be disposed at intervals along a circumferential direction of the hub 1, for example, the plurality of blades 2 may be disposed at even intervals along the circumferential direction of the hub 1, each blade 2 is rotatably disposed on the hub 1 to change a wind guiding angle of the blade 2, and each blade 2 may rotate relative to the hub 1 to change the wind guiding angle of the blade 2; when the wind-guiding angle of blade 2 changes, the amount of wind when axial flow wind wheel 100 rotates, the noise etc. can follow the change of above-mentioned wind-guiding angle and change, for in the conventional art, axial flow wind wheel's fan blade sets firmly in wheel hub and can't change the wind-guiding angle of blade, axial flow wind wheel 100 in this application can adjust the amount of wind, noise etc. according to specific use occasion for axial flow wind wheel 100 can satisfy the differentiation demand of different occasions better, and then has effectively promoted axial flow wind wheel 100's practicality and suitability. In the description of the present invention, the term "plurality" means two or more.

For example, in a scene insensitive to noise, if a large air volume is required, the air guide angle of the blade 2 can be reduced to meet the air volume requirement; under the scene sensitive to noise, the requirement on noise is higher, and if the mute is required to be realized, the wind guide angle of the blade 2 can be increased so as to meet the mute requirement. Where "silent" is to be understood as low noise.

It is understood that the rotation angle range of each blade 2 with respect to the hub 1 is not particularly limited, and the rotation angle ranges of the plurality of blades 2 with respect to the hub 1 may or may not be identical.

For example, the rotation angle range of the blade 2 with respect to the hub 1 may be 0 ° to 180 ° (including end points), when the blade 2 is at 0 ° position with respect to the hub 1, the blade 2 may be at a position designed according to design standards, design manuals, or the like, at which time the hub 1 rotates to realize forward blowing of the axial flow wind turbine 100, and when the blade 2 is at 180 ° position with respect to the hub 1, the blade 2 may rotate clockwise or counterclockwise by 180 ° with respect to the hub 1 from the above 0 ° position to rotate to 180 ° position, at which time the hub 1 rotates to realize reverse blowing of the axial flow wind turbine 100; when the axial flow wind wheel 100 is applied to the air conditioner 200, if the axial flow wind wheel 100 can realize forward wind blowing and also can realize reverse wind blowing, when the axial flow wind wheel 100 blows in the reverse direction, the axial flow wind wheel 100 can realize automatic dust removal and/or defrosting of the air conditioner 200, compared with the prior art, the blades 2 are fixedly arranged on the hub 1, and the dust removal and defrosting of the air conditioner 200 are realized by adopting a mode that the hub 1 rotates in the reverse direction to realize the reverse wind blowing of the axial flow wind wheel 100, and the air volume of the axial flow wind wheel 100 is small due to the reverse rotation of the hub 1; wherein, the rotation direction of the hub 1 when the axial flow wind wheel 100 blows in the forward direction is the same as the rotation direction of the hub 1 when the axial flow wind wheel 100 blows in the reverse direction.

It should be noted that "forward blowing" and "reverse blowing" are relative concepts, and both extend directions along the central axis of axial flow wind wheel 100, and do not mean that axial flow wind wheel 100 blows towards a specific direction, and an air outlet direction of forward blowing of axial flow wind wheel 100 may be opposite to an air outlet direction of reverse blowing of axial flow wind wheel 100, for example, axial flow wind wheel 100 may have a first side and a second side in an axial direction, when axial flow wind wheel 100 blows in the forward direction, an air flow may flow from the first side to the second side, and when axial flow wind wheel 100 blows in the reverse direction, an air flow may flow from the second side to the first side. Wherein, the central axis of axial flow wind wheel 100 may be the rotation axis 100a of axial flow wind wheel 100.

Of course, the rotation angle range of the blade 2 relative to the hub 1 may also be set to other ranges according to actual needs, for example, the rotation angle range of the blade 2 relative to the hub 1 may also be 0 to 90 ° (inclusive), or 0 to 270 ° (inclusive), or 0 to 360 ° (inclusive), and the like.

When the blade 2 is rotated relative to the hub 1 to change the wind guiding angle of the blade 2, the angle α of the blade 2 placed on the hub 1 changes, and similarly, when the blade 2 is rotated relative to the hub 1 to change the angle α of the blade 2 placed on the hub 1, the wind guiding angle of the blade 2 changes. Wherein, the blade 2 has an inner side edge 20a and an outer side edge 20b, the inner side edge 20a is disposed adjacent to the hub 1, the inner side edge 20a can be disposed at a distance from the outer peripheral wall of the hub 1, the inner side edge 20a has an upstream end 20c and a downstream end 20d, and the above-mentioned placement angle α can refer to an included angle between a connecting line between the upstream end 20c and the downstream end 20d of the inner side edge 20a of the blade 2 and the central axis of the hub 1; the direction "inside" may refer to a direction close to the central axis of hub 1, and its opposite direction is defined as "outside", "upstream" and "downstream" may refer to the rotation of axial flow wind wheel 100 to push the air flow, and the central axis of hub 1 may be the rotation axis 100a of axial flow wind wheel 100 upstream and downstream in the air flow direction.

Therefore, according to the axial flow wind wheel 100 provided by the embodiment of the invention, the blades 2 are rotatably arranged on the hub 1 to change the wind guide angle of the blades 2, so that the axial flow wind wheel 100 can meet the differentiation requirements of different application occasions, and the practicability and the applicability of the axial flow wind wheel 100 are improved; also, when the range of the rotation angle of the vane 2 is large, it is convenient to achieve automatic dust removal and/or defrosting of the air conditioner 200.

In some embodiments of the present invention, as shown in fig. 4 and 6, each blade 2 has a rotation axis 2a, each blade 2 can rotate around the corresponding rotation axis 2a relative to the hub 1, and the rotation axis 2a can extend along the radial direction of the hub 1, so that an avoiding portion avoiding the hub 1 does not need to be arranged on the blade 2, which facilitates simplifying the design of the blade 2, reducing the design cost, and simultaneously facilitates enlarging the rotation angle range of the blade 2 relative to the hub 1, avoiding interference between two adjacent blades 2 during rotation, and facilitating the arrangement of a plurality of blades 2.

Of course, the rotation axis 2a may also be arranged obliquely with respect to the radial direction of the hub 1, in which case the rotation axis 2a may have a small angle with the radial direction of the hub 1, for example, the angle between the rotation axis 2a and the radial direction of the hub 1 may not exceed 10 °, but is not limited thereto.

In some embodiments of the present invention, as shown in fig. 4, the hub 1 has a first limiting portion 10, the blade 2 has a second limiting portion 20, and the first limiting portion 10 and the second limiting portion 20 are in limiting fit to limit the movement of the blade 2 in the radial direction of the hub 1, so as to ensure the installation reliability of the blade 2, prevent the blade 2 from being separated from the hub 2 during the rotation of the axial flow wind wheel 100, and improve the use reliability of the axial flow wind wheel 100.

Alternatively, in the example of fig. 4, the first stopper portion 10 may be formed as one of a stopper protrusion and a stopper groove, and the second stopper portion 20 may be formed as the other of the stopper protrusion and the stopper groove, the stopper protrusion protruding into the stopper groove to at least restrict the outward movement of the blade 2 in the radial direction of the hub 1; for example, when the limiting protrusion and the limiting groove are only used for limiting the outward radial movement of the blade 2 along the hub 1, the inward radial movement of the blade 2 along the hub 1 may be achieved by other components, such as, but not limited to, components of the driving mechanism 3 described later; of course, the limiting protrusion and the limiting groove can also be used for limiting the inward and outward movement of the blade 2 along the radial direction of the hub 1.

In a further embodiment of the present invention, as shown in fig. 3 and 4, the axial flow wind wheel 100 further includes a driving mechanism 3, the driving mechanism 3 is connected to the plurality of blades 2 respectively to drive the plurality of blades 2 to rotate, and the driving mechanism 3 operates to drive the plurality of blades 2 to rotate respectively, so that the axial flow wind wheel 100 can realize the rotation of the plurality of blades 2 by controlling the operation of the driving mechanism 3 in the application process, thereby changing the wind guiding angle of the plurality of blades 2; of course, when the wind guiding angle of the plurality of blades 2 needs to be kept constant, the plurality of blades 2 need to be kept stationary relative to the hub 1, and at this time, the plurality of blades 2 may be kept stationary relative to the hub 1 by controlling the driving mechanism 3 to stop operating, or the plurality of blades 2 may be kept stationary relative to the hub 1 by using a limiting device, but the invention is not limited thereto. Therefore, the rotation control of the plurality of blades 2 is facilitated, and the axial flow wind wheel 100 is beneficial to improving the control convenience of the axial flow wind wheel 100 in the application process.

Alternatively, in the example of fig. 3 and 4, the driving mechanism 3 is configured to drive the plurality of blades 2 to rotate synchronously, thereby facilitating the simplification of the structure of the driving mechanism 3 and the improvement of the handling efficiency of the axial-flow wind turbine 100. Of course, the drive mechanism 3 may also be configured to drive the plurality of blades 2 to rotate asynchronously.

In some embodiments of the present invention, as shown in fig. 3 and 4, the driving mechanism 3 may include a motor 31 and a transmission mechanism 32, and the transmission mechanism 32 is connected between the motor 31 and the plurality of blades 2 to transmit the power of the motor 31 to the plurality of blades 2 at the same time, so that the plurality of blades 2 may be rotated in synchronization. Therefore, the driving mechanism 3 has simple structure and low cost; of course, the structure of the driving mechanism 3 is not limited to this, and the driving mechanism 3 may also be in other driving forms, so long as the driving mechanism 3 can drive the plurality of blades 2 to rotate relative to the hub 1.

The specific structure of the transmission mechanism 32 can be specifically set according to actual requirements. For example, in the example of fig. 3 and 4, the transmission mechanism 32 may include a driving gear 321, a plurality of driven gears 322 and a middle gear 323, the driving gear 321 is connected to the motor 31 to be driven by the motor 31 to rotate, the plurality of driven gears 322 are provided in plurality, and the plurality of driven gears 322 are respectively connected to the inner side edges 20a of the plurality of blades 2, for example, the plurality of driven gears 322 may be arranged at intervals along the circumferential direction of the hub 1, one driven gear 322 is connected to the inner side edge 20a of each blade 2, the middle gear 323 is provided between the driving gear 321 and the driven gear 322, the middle gear 323 may be connected between the driving gear 321 and the plurality of driven gears 322, and the middle gear 323 is engaged with the driving gear 321 and the driven gear 322, respectively, so that the motor 31 drives the driving gear 321 to rotate, the driving gear 321 may drive the plurality of driven gears 322 to rotate through the middle gear 323, the plurality of driven, to change the wind guiding angle of the blade 2.

From this, through setting up driving gear 321, intermediate gear 323 and a plurality of driven gear 322, drive mechanism 32 can be with the power transmission of motor 31 to a plurality of blades 2, be favorable to reducing drive mechanism 32's overall dimension simultaneously, save drive mechanism 32's occupation space, be convenient for drive mechanism 32's arrangement, drive mechanism 32 can realize the transmission between the arbitrary two axles in space such as parallel axis, intersect axle, or staggered axle, be convenient for realize drive mechanism 32's diversified design, and drive mechanism 32 power transmission is reliable, and life is longer.

Specifically, in the example of fig. 4, the intermediate gear 323 is formed in a ring-shaped structure, the intermediate gear 323 has an inner edge 3231 and an outer edge 3232, the inner edge 3231 has a first gear tooth portion 323a, the first gear tooth portion 323a may extend along the inner edge 3231 and the first gear tooth portion 323a may be formed in a ring-shaped structure, the first gear tooth portion 323a is meshed with the driving gear 321, and an inner mesh engagement may be formed between the intermediate gear 323 and the driving gear 321; the outer edge 3232 has a second gear tooth portion 323b, the second gear tooth portion 323b may extend along the outer edge 3232, the second gear tooth portion 323b may be formed in an annular structure, the second gear tooth portion 323b is engaged with the plurality of driven gears 322, and an external engagement between the intermediate gear 323 and the plurality of driven gears 322 may be formed. Therefore, the intermediate gear 323 has a simple structure, can transmit the power of the driving gear 321 to the driven gear 322, and is convenient for realizing the compact arrangement of the transmission mechanism 32, thereby being beneficial to saving the occupied space of the transmission mechanism 32.

Alternatively, as shown in fig. 4, the central axis of the driving gear 321 may extend along the axial direction of the wheel hub 1, the driving gear 321 may be connected to the output shaft of the motor 31 to be driven by the output shaft, and the central axis of the output shaft may also extend along the axial direction of the wheel hub 1, so as to facilitate the arrangement of the motor 31, for example, the motor 31 may be mounted on the wheel hub 1. The driving gear 321 may be formed as a cylindrical gear, for example, the driving gear 321 may be formed as a spur gear, a helical gear, or the like.

Alternatively, as shown in fig. 4, the driven gear 322 may drive the blade 2 to rotate relative to the hub 1 to change the wind guiding angle of the blade 2, and the rotation axis 2a of the blade 2 may be a central axis of the driven gear 322, and the central axis of the driven gear 322 may extend along the radial direction of the hub 1, so as to facilitate the arrangement of the driven gear 322 and save the occupied space of the driving mechanism 3. Among them, the driven gear 322 may be formed as a bevel gear, for example, the driven gear 322 may be formed as a straight-tooth bevel gear, a helical-tooth bevel gear, or the like.

In some embodiments of the present invention, as shown in fig. 1, 3 and 4, a cavity 1a is defined in the hub 1, and the driving mechanism 3 is installed in the cavity 1a, so that the hub 1 can protect the driving mechanism 3 to a certain extent, the use reliability of the driving mechanism 3 is ensured, and meanwhile, the internal space of the hub 1 can be utilized, so as to save the occupied space of the axial flow wind wheel 100. Of course, the driving mechanism 3 may be provided at other positions, not limited to the cavity 1 a.

It should be noted that "the drive mechanism 3 is attached to the cavity 1 a" means that at least a part of the drive mechanism 3 is disposed in the cavity 1a, and the drive mechanism 3 may be completely accommodated in the cavity 1a, or a part of the drive mechanism 3 may be accommodated in the cavity 1 a.

For example, in the example of fig. 1 and 3, the hub 1 may include a hub base 11 and a hub cover 12, the hub base 11 and the hub cover 12 may be coupled to each other in a snap-fit manner along the axial direction of the axial flow wind wheel 100, a side of the hub base 11 facing the hub cover 12 may be disposed in an open manner, a side of the hub cover 12 facing the hub base 11 may be disposed in an open manner, when the hub base 11 is coupled to the hub cover 12, the hub base 11 and the hub cover 12 may define a cavity 1a, and the hub base 11 and the hub cover 12 may be detachably coupled to each other to facilitate installation, maintenance, replacement, and the like of the driving mechanism 3.

For example, as shown in fig. 7 to 9, the air conditioner 200 according to the second aspect of the present invention includes a first wind wheel 101, and the first wind wheel 101 is an axial-flow wind wheel 100 according to the above-mentioned first aspect of the present invention, so that the first wind wheel 101 may include a hub 1 and a plurality of blades 2, the plurality of blades 2 are spaced apart from each other along a circumferential direction of the hub 1, and each blade 2 is rotatably disposed on the hub 1 to change a wind guiding angle of the blade 2.

Therefore, the air guide angle of the plurality of blades 2 can be adjusted according to the requirements of the actual scene on the air volume, the noise and the like during the use of the air conditioner 200. For example, in a scene insensitive to noise, if a large air volume is required, the air guide angle of the blade 2 can be reduced to meet the air volume requirement; under the scene sensitive to noise, the requirement on noise is higher, and if the mute is required to be realized, the wind guide angle of the blade 2 can be increased so as to meet the mute requirement.

It can be understood that, in the use process of the air conditioner 200, the rotation speed of the first wind wheel 101 can be kept unchanged, and the air quantity and noise can be adjusted by adjusting the wind guiding angles of the plurality of blades 2; of course, after the adjustment of the wind guiding angle of the blade 2 is completed, the rotation speed of the first wind wheel 101 may be adjusted according to practical application to achieve the continuous adjustment of the air volume and the noise of the first wind wheel 101, or the rotation speed of the first wind wheel 101 may also be kept unchanged.

According to the air conditioner 200 of the embodiment of the invention, by adopting the axial flow wind wheel 100, the air volume, the noise and the like of the air conditioner 200 can be adjusted according to specific use occasions, so that the air conditioner 200 can better meet the differentiated requirements of different occasions, and the practicability and the applicability of the air conditioner 200 are effectively improved.

The air conditioner 200 may be a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, or the like; when the air conditioner 200 is a split wall-hanging type air conditioner, the air conditioner 200 may include an indoor unit and an outdoor unit 200a, and the first wind wheel 101 may be disposed on the indoor unit or the outdoor unit 200a (as shown in fig. 7 to 9).

As shown in fig. 7-9, the air conditioner 200 may be provided therein with the motor bracket 103, the motor bracket 103 may be arranged vertically, the bottom end of the motor bracket 103 may be mounted on the chassis of the air conditioner 200, and the top end of the motor bracket 103 may be mounted on the housing of the air conditioner 200, so as to facilitate the mounting of the motor bracket 103 and to ensure the mounting reliability of the motor bracket 103; the motor 104 is mounted on the motor support 103, and the motor 104 can be connected with the first wind wheel 101 to drive the first wind wheel 101 to rotate, so that air outlet of the air conditioner 200 is realized. Alternatively, in the example of fig. 7 and 8, at least one motor 104 may be mounted on the motor bracket 103, and at least one first wind rotor 101 may be mounted on the motor bracket 103 by the motor 104; for example, two first wind wheels 101 may be mounted on the motor bracket 103, the two first wind wheels 101 may be mounted on two sides (e.g., front and rear sides in fig. 7 and 8) of the thickness of the motor bracket 103, respectively, central axes of the two first wind wheels 101 may be arranged in a collinear manner or in a parallel manner, at this time, the two first wind wheels 101 may share the same motor 104, or each first wind wheel 101 may be correspondingly connected to one motor 104, respectively.

It is understood that the first wind wheel 101 may be one or more; when there are a plurality of first wind turbines 101 (as shown in fig. 7 and 8), the plurality of first wind turbines 101 may be arranged at intervals in the axial direction of the first wind turbine 101, but is not limited thereto.

In a further embodiment of the present invention, as shown in fig. 9, the air conditioner 200 may further include a second wind wheel 102, the second wind wheel 102 and the first wind wheel 101 may be arranged at an interval along the axial direction of the first wind wheel 101, and the blades of the second wind wheel 102 are fixedly arranged at the hub of the second wind wheel 102, so that the blades of the second wind wheel 102 may be always stationary relative to the hub of the second wind wheel 102. Therefore, the structural design of the air conditioner 200 is further enriched, the differentiation requirements of users can be better met, the air volume of the air conditioner 200 during dust removal and/or defrosting can be ensured, and the dust removal and/or defrosting effect is improved; among them, the second wind wheel 102 may be one or more. Of course, the air conditioner 200 may not be provided with the second wind wheel 102.

Other configurations and operations of the air conditioner 200 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

According to the control method of the air conditioner 200 according to the third aspect embodiment of the present invention, the air conditioner 200 is the air conditioner 200 according to the above-mentioned second aspect embodiment of the present invention, the control method includes the steps of: the air conditioner 200 operates, the first wind wheel 101 blows air in the forward direction, when receiving a lifting air volume instruction, the blades 2 of the first wind wheel 101 rotate to reduce the wind guide angle of the blades 2, and when receiving a noise reduction instruction, the blades 2 of the first wind wheel 101 rotate to increase the wind guide angle of the blades 2.

For example, as shown in fig. 10-12, when the air conditioner 200 is operated, the first wind wheel 101 may blow air in the forward direction to achieve normal air outlet of the air conditioner 200; when the air conditioner 200 is used in a scene with low noise requirements, if the air volume needs to be increased, an air volume increasing instruction can be sent to the air conditioner 200, when the air conditioner 200 receives the air volume increasing instruction, the blades 2 of the first wind wheel 101 can rotate relative to the hub 1 of the first wind wheel 101 to change the wind guide angles of the blades 2, so that the wind guide angles of the blades 2 are reduced until the wind guide angles of the blades 2 are reduced to enable the air volume of the air conditioner 200 to meet requirements, and the refrigerating or heating effect of the air conditioner 200 is increased, even if the noise of the air conditioner 200 is high, in the scene with low noise requirements, a user cannot be affected. When the air conditioner 200 is used in a scene with a high noise requirement, a noise reduction instruction can be sent to the air conditioner 200, and when the air conditioner 200 receives the noise reduction instruction, the blades 2 of the first wind wheel 101 can rotate relative to the hub 1 of the first wind wheel 101 to change the wind guide angle of the blades 2, so that the wind guide angle of the blades 2 is increased until the wind guide angle of the blades 2 is increased to a point where the noise of the air conditioner 200 meets the requirement.

Therefore, the control method of the air conditioner 200 according to the embodiment of the invention has simple control logic and is convenient to realize, can meet the differentiated requirements of different scenes on air volume, noise and the like, and can enrich the control of the air conditioner 200.

In some embodiments of the present invention, as shown in fig. 11, the air conditioner 200 may also perform dust removal and/or defrosting, thereby enriching the functions of the air conditioner 200 and facilitating the maintenance of the air conditioner 200; the control method may further include: when a dust removal and/or defrosting instruction is received, the blades 2 of the first wind wheel 101 rotate to enable the first wind wheel 101 to blow air reversely, automatic dust removal and/or defrosting of the air conditioner 200 can be achieved, the air conditioner 200 is more intelligent, and maintenance and cleaning of the air conditioner 200 are facilitated. For example, blades 2 of first wind turbine 101 may rotate 180 ° with respect to hub 1 from a position where first wind turbine 101 blows in a forward direction, and then first wind turbine 101 blows in a reverse direction, and of course, blades 2 of first wind turbine 101 may also rotate 170 ° with respect to hub 1 from a position where first wind turbine 101 blows in a forward direction, and then first wind turbine 101 blows in a reverse direction, but is not limited thereto.

Wherein, the rotation direction of the first wind wheel 101 when the first wind wheel 101 blows in the forward direction is the same as the rotation direction of the first wind wheel 101 when the first wind wheel 101 blows in the reverse direction.

Further, as shown in fig. 9 and 12, the air conditioner 200 may further include a second wind wheel 102, the second wind wheel 102 and the first wind wheel 101 may be arranged at an interval along the axial direction of the first wind wheel 101, and the blades of the second wind wheel 102 are fixedly arranged at the hub of the second wind wheel 102, so that the blades of the second wind wheel 102 may be kept still all the time relative to the hub of the second wind wheel 102, further enriching the structural design of the air conditioner 200. At this time, the control method of the air conditioner 200 may include: when a dust removal and/or defrosting instruction is received, the first wind wheel 101 blows air reversely, the second wind wheel 102 stops running, the second wind wheel 102 can be prevented from influencing reverse air outlet of the first wind wheel 101, and the dust removal and/or defrosting effect of the air conditioner 200 is further guaranteed.

An axial flow wind turbine 100 according to an embodiment of the present invention is described in detail in one specific embodiment with reference to fig. 1 to 6. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.

As shown in fig. 1-3, the axial flow wind wheel 100 includes a hub 1, a driving mechanism 3, and five blades 2, the five blades 2 are uniformly arranged at intervals along a circumferential direction of the hub 1, the driving mechanism 3 is disposed in a cavity 1a defined in the hub 1, and the driving mechanism 3 and the five blades 2 are respectively connected to drive the five blades 2 to synchronously rotate around a rotation axis 2a relative to the hub 1, so as to change a wind guiding angle of the blades 2.

As shown in fig. 3 and 4, the driving mechanism 3 includes a motor 31 and a transmission mechanism 32, the transmission mechanism 32 includes a driving gear 321, driven gears 322 and an intermediate gear 323, the driving gear 321 is connected to the motor 31 to be driven by the motor 31 to rotate, the number of the driven gears 322 is five, and the five driven gears 322 are respectively connected to the inner side edges 20a of the five blades 2, so that one driven gear 322 is connected to the inner side edge 20a of each blade 2, the intermediate gear 323 is connected between the driving gear 321 and the five driven gears 322, and the intermediate gear 323 is respectively engaged with the driving gear 321 and the driven gears 322, so that the motor 31 drives the driving gear 321 to rotate, the driving gear 321 can drive the five driven gears 322 to rotate through the intermediate gear 323, and the five driven gears 322 can respectively drive the five blades 2 to rotate to change the wind guide angle of.

The intermediate gear 323 is formed into an annular structure, the central axis of the intermediate gear 323 extends in the axial direction of the hub 1, the intermediate gear 323 has an inner edge 3231 and an outer edge 3232, a first gear tooth portion 323a is provided at the inner edge 3231, the first gear tooth portion 323a is meshed with the driving gear 321, and the central axis of the driving gear 321 and the central axis of the output shaft of the motor 31 both extend in the axial direction of the hub 1; the outer edge 3232 has a second gear portion 323b, the second gear portion 323b is meshed with five driven gears 322, and the central axes of the driven gears 322 extend in the radial direction of the hub 1, so that the rotation axis 2a of each blade 2 extends in the radial direction of the hub 1. The driving gear 321 is a spur gear, and the driven gear 322 is a spur bevel gear.

As shown in fig. 4, the hub 1 has a first limiting portion 10, the first limiting portion 10 is formed as a limiting protrusion, the blade 2 has a second limiting portion 20, the second limiting portion 20 is formed as a limiting groove, and the limiting protrusion extends into the limiting groove to be in limiting fit with the limiting groove so as to limit the movement of the blade 2 in the radial direction of the hub 1.

The hub 1 comprises a hub base 11 and a hub cover 12, the hub base 11 and the hub cover 12 are detachably connected along the axial direction of the axial flow wind wheel 100, when the hub base 11 is connected with the hub cover 12, the hub base 11 and the hub cover 12 define a cavity 1 a; the hub base 11 is formed with five first mounting holes, and the hub cover 12 is formed with five second mounting holes, and when the hub base 11 links to each other with the hub cover 12, the first mounting hole splices with the second mounting hole that corresponds in order to form complete mounting hole, and first spacing portion 10 is formed on the perisporium of mounting hole.

The inboard edge 20a of every blade 2 has the installation department, and the installation department can be located the middle part position of inboard edge 20a, and driven gear 322 can link to each other with the installation department, and the mounting hole is worn to locate by the installation department, and spacing portion 20 of second forms on the periphery wall of installation department to the spacing cooperation of spacing portion 20 of first spacing portion 10 and second can restrict blade 2 along the radial removal of wheel hub 1.

In a scene insensitive to noise, if a large air volume is needed, the air guide angle of the blades 2 can be reduced to meet the air volume requirement; under the scene sensitive to noise, the requirement on noise is higher, and if the mute is required to be realized, the wind guide angle of the blade 2 can be increased so as to meet the mute requirement.

The axial flow wind wheel 100 according to the embodiment of the invention has a simple structure, can meet the differentiated requirements of various occasions and adapt to various application occasions, and has good practicability and applicability.

The air conditioner 200 and the control method of the air conditioner 200 according to the embodiments of the present invention are described below in two specific embodiments with reference to fig. 7 to 9, 11 and 12. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.

Example one

In the present embodiment, as shown in fig. 7 and 8, the air conditioner 200 includes two first wind turbines 101, each first wind turbine 101 is an axial flow wind turbine 100 shown in fig. 1 to 6, and the two first wind turbines 101 are arranged at intervals along an axial direction of the first wind turbine 101.

As shown in fig. 11, the control method of the air conditioner 200 includes the steps of: when the air conditioner 200 operates, the two first wind wheels 101 blow air in the positive direction, when an air volume lifting instruction is received, the blades 2 of the two first wind wheels 101 rotate relative to the corresponding hub 1 to reduce the air guide angle of the blades 2, the placement angle alpha of each blade 2 is correspondingly reduced, and the air guide angle of each blade 2 can be reduced to enable the air volume of the air conditioner 200 to meet the requirement; when a noise reduction instruction is received, the plurality of blades 2 of the two first wind wheels 101 rotate relative to the corresponding hub 1 to increase the wind guide angle of the blades 2, the placement angle alpha of each blade 2 is correspondingly increased, and the wind guide angle of each blade 2 can be increased to enable the noise of the air conditioner 200 to meet the requirement; upon receiving a dust removal and/or defrost command, the blades 2 of the two first wind turbines 101 are rotated with respect to the corresponding hub 1 so that both first wind turbines 101 blow air in opposite directions.

When the air conditioner 200 receives a dust removal and/or defrosting instruction, the two first wind wheels 101 can blow air towards the corresponding heat exchangers of the air conditioner 200, so that air flow disturbance can be generated in the air conditioner 200, and dust removal and/or defrosting of the air conditioner 200 can be realized.

It is understood that the air conditioner 200 may have a plurality of operation modes, for example, the air conditioner 200 may have a normal operation mode, a large air volume operation mode, a silent operation mode, and a cleaning operation mode. When the air conditioner 200 is in the normal operation mode, the placement angle α of the blade 2 may be between 10 ° and 60 ° (including an end point value), and in the normal operation mode, the placement angle α may be a certain value between 10 ° and 60 °, or a certain interval included between 10 ° and 60 °, for example, 20 ° to 40 °, and the like, and at this time, the placement angle of the blade 2 may be designed according to a design standard, a design manual, or the like, and in the normal operation mode, the wind guide angle of the blade 2 may be kept constant or may be changed, that is, the placement angle α of the blade 2 may be kept constant or may be changed.

When the air conditioner 200 is in the high-air-volume operation mode, each blade 2 of the first wind wheel 101 may rotate around the rotation axis 2a relative to the hub 1 at a position in the normal operation mode to reduce the wind guiding angle, so that the placement angle of the blade 2 is also reduced, for example, in the normal operation mode, the placement angle α ranges from 20 ° to 40 ° (including an end point value), and in the high-air-volume operation mode, the placement angle α may be smaller than 20 ° and larger than 0 °.

When the air conditioner 200 is in the silent operation mode, each blade 2 of the first wind wheel 101 may rotate around the rotation axis 2a relative to the hub 1 at a position in the normal operation mode to increase the wind guiding angle, and the placing angle of the blade 2 is also increased, for example, in the normal operation mode, the placing angle α ranges from 20 ° to 40 ° (including an end point value), and in the high wind operation mode, the placing angle α may be greater than 40 ° and smaller than 90 °.

When the air conditioner 200 is in the cleaning operation mode, each blade 2 of the first wind wheel 101 may be rotated 180 ° with respect to the hub 1 about the rotation axis 2a from the position in the normal operation mode, so that the first wind wheel 101 blows air in a reverse direction to achieve dust removal and/or defrosting of the air conditioner 200.

Certainly, when the air conditioner 200 is switched among the above multiple operation modes, it is not necessary to start switching from the normal operation mode, for example, the air conditioner 200 may be switched from the high-air-volume operation mode to the silent operation mode, and the wind guiding angles of the plurality of blades 2 of the first wind wheel 101 may be directly increased, so that the placement angle of each blade 2 of the first wind wheel 101 satisfies the placement angle in the silent operation mode; the air conditioner 200 may also be switched from the high-air-volume operation mode to the cleaning operation mode, and the wind guiding angles of the plurality of blades 2 of the first wind wheel 101 may be directly adjusted, for example, the blades 2 may rotate in a direction of increasing the wind guiding angle or decreasing the wind guiding angle, so that the placement angle of each blade 2 of the first wind wheel 101 satisfies the placement angle in the cleaning operation mode.

Therefore, the control logic of the air conditioner 200 is simple, and compared with the prior art, the noise and the air volume of the air conditioner 200 can only be adjusted through the rotation degree of the wind wheel, and the noise and the air volume of the air conditioner 200 in the application can be adjusted not only through the rotation speed of the first wind wheel 101, but also through the wind guiding angle of the adjusting blade 2.

Example two

As shown in fig. 9, the present embodiment has substantially the same structure as the first embodiment, wherein the same reference numerals are used for the same components, except that: the air conditioner 200 further includes a second wind wheel 102, the second wind wheel 102 and the first wind wheel 101 are arranged at an interval along the axial direction of the first wind wheel 101, and blades of the second wind wheel 102 are fixedly arranged on a hub of the second wind wheel 102. Wherein, the second wind wheel 102 may be located between the first wind wheel 101 and a corresponding heat exchanger of the air conditioner 200, but is not limited thereto.

As shown in fig. 12, the control method of the air conditioner 200 includes the steps of: the air conditioner 200 is operated, and both the first wind wheel 101 and the second wind wheel 102 blow air in a forward direction. When an air volume lifting instruction is received, the plurality of blades 2 of the first wind wheel 101 rotate relative to the hub 1 to reduce the wind guide angle of the blades 2, the placement angle of each blade 2 of the first wind wheel 101 is correspondingly reduced, and the wind guide angle of each blade 2 of the first wind wheel 101 can be reduced to enable the air volume of the air conditioner 200 to meet the requirement; in the above process, the rotation speed of the second wind turbine 102 may be constant or may be changed. When a noise reduction instruction is received, the plurality of blades 2 of the first wind wheel 101 rotate relative to the hub 1 to increase the wind guide angle of the blades 2, the placement angle alpha of each blade 2 of the first wind wheel 101 is correspondingly increased, and the wind guide angle of each blade 2 of the first wind wheel 101 can be increased to enable the noise of the air conditioner 200 to meet the requirement; in the above process, the rotation speed of the second wind turbine 102 may be constant or may be changed. When a dust removal and/or defrosting instruction is received, the first wind wheel 101 blows air reversely, and the second wind wheel 102 stops running, namely the second wind wheel 102 stops rotating.

When the air conditioner 200 receives a dust removal and/or defrosting instruction, the first wind wheel 101 can blow air towards a corresponding heat exchanger of the air conditioner 200, so that air flow disturbance can be generated in the air conditioner 200, and dust removal and/or defrosting of the air conditioner 200 can be realized.

In the description of the present invention, it is to be understood that the terms "center", "thickness", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" 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 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. An axial flow wind wheel, comprising:

a hub;

the blade, the blade is a plurality of, and is a plurality of the blade is followed wheel hub's circumference interval sets up, every the blade all rotationally locates wheel hub to the change the wind-guiding angle of blade.

2. The axial flow wind rotor of claim 1, wherein each of the blades has an axis of rotation extending in a radial direction of the hub.

3. The axial-flow wind wheel according to claim 1, wherein the hub has a first position-limiting portion thereon, and the blade has a second position-limiting portion thereon, and the first position-limiting portion and the second position-limiting portion are in position-limiting engagement to limit the movement of the blade in the radial direction of the hub.

4. The axial flow wind wheel according to any of claims 1-3, further comprising:

and the driving mechanism is connected with the blades respectively to drive the blades to rotate.

5. The axial-flow wind rotor according to claim 4, wherein the drive mechanism is configured to drive a plurality of the blades to rotate in synchronization.

6. The axial flow wind wheel of claim 5, wherein the drive mechanism comprises:

a motor;

and the transmission mechanism is connected between the motor and the plurality of blades so as to transmit the power of the motor to the plurality of blades simultaneously.

7. The axial flow wind wheel of claim 6, wherein the transmission mechanism comprises:

the driving gear is connected with the motor so as to be driven by the motor to rotate;

a plurality of driven gears connected to inner edges of the plurality of blades, respectively;

the intermediate gear is arranged between the driving gear and the driven gear and is respectively meshed with the driving gear and the driven gear.

8. The axial flow wind wheel of claim 7, wherein the intermediate gear is formed in an annular configuration and has an inner edge and an outer edge, the inner edge having a first wheel tooth portion in meshing engagement with the drive gear and the outer edge having a second wheel tooth portion in meshing engagement with the plurality of driven gears.

9. The axial wind wheel of claim 8, wherein the central axis of the driving gear extends in the axial direction of the hub, and the driving gear is formed as a cylindrical gear.

10. The axial flow wind wheel according to claim 8, wherein a central axis of the driven gear extends in a radial direction of the hub, the driven gear being formed as a bevel gear.

11. The axial flow wind wheel of claim 4, wherein the hub defines a cavity therein, the drive mechanism being mounted to the cavity.

12. An air conditioner, comprising:

a first wind rotor being an axial wind rotor according to any of claims 1-11.

13. The air conditioner according to claim 12, further comprising:

the second wind wheel and the first wind wheel are arranged at intervals along the axial direction of the first wind wheel, and blades of the second wind wheel are fixedly arranged on a hub of the second wind wheel.

14. A control method of an air conditioner according to claim 12, comprising the steps of:

the air conditioner runs, the first wind wheel blows air in the forward direction, when an air volume lifting instruction is received, the blades of the first wind wheel rotate to reduce the wind guide angle, and when a noise reduction instruction is received, the blades of the first wind wheel rotate to increase the wind guide angle.

15. The control method of an air conditioner according to claim 14, further comprising:

when a dust removal and/or defrosting command is received, the blades of the first wind wheel rotate to enable the first wind wheel to blow air reversely.

16. The control method of an air conditioner according to claim 15, wherein the air conditioner further comprises: the second wind wheel and the first wind wheel are arranged at intervals along the axial direction of the first wind wheel, blades of the second wind wheel are fixedly arranged on a hub of the second wind wheel, and the control method further comprises the following steps:

and when a dust removal and/or defrosting instruction is received, the first wind wheel blows air reversely, and the second wind wheel stops running.