CN116972003A

CN116972003A - Clutch device of fan, air conditioner and control method of air conditioner

Info

Publication number: CN116972003A
Application number: CN202311150184.5A
Authority: CN
Inventors: 王玉龙; 陈启荣; 王启龙; 李玉泽
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2023-10-31

Abstract

The invention provides a clutch device of a fan, the fan, an air conditioner and a control method of the air conditioner. The clutch device comprises a driving disc, a driven structure, a fan blade rotating shaft, a shell and a pushing piece, wherein the driven structure comprises a driven disc assembly, a rotating shaft hub, an elastic piece and a diaphragm spring; the shell is fixedly connected with the driving disc, the driven disc assembly and the rotating shaft hub are arranged between the driving disc and the shell, and the driven disc assembly is forced to be abutted with the driving disc by the elastic piece and in friction transmission; the periphery of the diaphragm spring is fixedly connected with the driven disc assembly; the pushing piece pushes the inner periphery of the diaphragm spring and forces the outer periphery of the diaphragm spring to move away from the driving disc; the rotating shaft hub is in damping fit with the driven disc assembly along the rotating direction. The fan comprises a clutch device, and the air conditioner comprises a fan. The control method comprises the step of controlling the operation mode of the fan according to the air quality detection data. The invention solves the problems of collision and abnormal sound, the fan blades are independently controlled, the user experience is improved, the service life of the product is prolonged, and the invention is especially suitable for fresh air conditioners.

Description

Clutch device of fan, air conditioner and control method of air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to a clutch device applied to a fan of a fresh air conditioner, the fan, the air conditioner and a control method of the air conditioner.

Background

In the existing air conditioner with the fresh air fan, the fresh air fan comprises a motor, a clutch device, a first fan blade and a second fan blade, wherein the motor is a single-shaft motor, and the clutch device comprises a driving disc, a clutch gear ring and a fan blade rotating shaft component. The driving disc is driven by the motor and is used for driving the first fan blade, and the driving disc is provided with first gear shaping teeth and first slots which are alternately arranged along the circumferential direction and are concave-convex along the axial direction; the axial end part of the clutch gear ring is provided with a second slot matched with the first gear shaping and a second gear shaping matched with the first slot, and in addition, the inner wall surface of the clutch gear ring is provided with an inner tooth group; the fan blade rotating shaft part comprises a rotating shaft part and an inner barrel part which are connected in the axial direction, and the rotating shaft part is used for driving the second fan blade; the outer wall surface of the inner barrel part is provided with an external gear group, the inner barrel part rotates around the axis of the motor, the clutch gear group is sleeved outside the inner barrel part, the external gear group is meshed with the internal gear group, so that the clutch gear ring and the inner barrel part keep coaxial rotation, the clutch gear ring can axially slide relative to the inner barrel part, the clutch gear ring axially slides to realize the clutch with the driving disc, and then the starting and stopping of the second fan blade are controlled.

The problem that this kind of new trend device of current exists is, realizes the separation and reunion with the gear shaping slot mode, and the tooth bumps and produces abnormal sound problem with the tooth easily, not only influences user's use experience, causes great impact to the pivot part when the gear shaping slot joins in marriage, makes spare part impaired easily, influences complete machine life-span. On the other hand, the clutch device can only realize the start and stop of the second fan blade, and the first fan blade cannot be controlled independently.

Disclosure of Invention

The first object of the present invention is to provide a clutch device for a fan, which solves the problems of collision and abnormal sound and can enable each fan blade to be independently controlled.

The second object of the present invention is to provide a fan that solves the problems of collision and abnormal sound and enables each fan blade to be independently controlled.

The third object of the invention is to provide an air conditioner which solves the problems of collision and abnormal sound and can enable each fan blade to be independently controlled, so that the use experience of a user is improved, the service life of a product is prolonged, and the air conditioner is particularly suitable for a fresh air conditioner.

The fourth object of the present invention is to provide a control method of an air conditioner, which solves the problems of collision and abnormal sound based on the clutch device and achieves more ideal effect for fresh air treatment.

The clutch device of the fan provided by the first object of the invention comprises a driving disc, a driven structure and a fan She Zhuaizhou; the clutch device of the fan also comprises a shell and a pushing piece, and the driven structure comprises a driven disc assembly, a rotating shaft hub, an elastic piece and a diaphragm spring; the shell is fixedly connected with the driving disc along the axial direction of the fan blade rotating shaft, the driven disc assembly and the rotating shaft hub are both arranged between the driving disc and the shell, the elastic piece is arranged between the shell and the driven disc assembly, and the driven disc assembly is forced to be abutted with the driving disc and in friction transmission under the action of the elastic piece; the rotating shaft hub is coaxially fixed with the fan blade rotating shaft, the diaphragm spring is sleeved outside the fan blade rotating shaft, and the periphery of the diaphragm spring is fixedly connected with the driven disc assembly; the pushing piece can push the inner peripheral part of the diaphragm spring and force the outer peripheral part to move along with the driven disc assembly in a direction away from the driving disc; the rotating shaft hub and the driven disc assembly are coaxially arranged and are in damping fit along the rotating direction of the fan blade rotating shaft.

According to the scheme, when the pushing piece does not press the middle rib of the inner peripheral part of the diaphragm spring, the elastic piece is fixed between the shell and the driven disc assembly, so that the driven disc assembly can be tightly pressed against the driving disc, the driven disc assembly and the driving disc are in an abutting state, and torque is transmitted between the driven disc assembly and the driving disc in a friction mode. When the system control pushing piece moves towards the driving disc, ribs on the inner peripheral part of the diaphragm spring are pressed down towards the driving disc in the axial direction, and correspondingly, the outer peripheral part of the diaphragm spring is lifted up towards the driving disc in the axial direction and away from the driving disc. Therefore, the invention can avoid collision, reduce abnormal sound times and increase user comfort experience by transmitting torque through friction contact of the driven disc and the driving disc. Further, in order to prevent the driving disc from being transmitted to the output rotating shaft hub to be excessively large, in the invention, the driven disc component is in damping fit with the rotating shaft hub in the rotating direction, the rotating shaft load of the fan blade is stable, the service life of parts is prolonged, and the service life of the whole machine is prolonged. On the other hand, the clutch device can realize independent clutch control on each fan blade.

The driven disc assembly further comprises a damping spring, and the damping spring is abutted between the driven disc assembly and the rotating shaft hub along the rotating direction; when the rotating shaft hub and the driven disc assembly rotate relatively, the damping spring deforms elastically.

Further, at least two damping springs are arranged along the circumference of the fan blade rotating shaft.

From the above, when the transmission moment of torsion, the pivot wheel hub is rotated earlier by a plurality of damping springs and is deformed buffering, until pivot wheel hub reaches and rotates with driven plate subassembly homoenergetic, and protection fan blade pivot load is steady.

The driven disc assembly comprises a driving pressing disc, a driven pressing disc and a driven disc, wherein the driving pressing disc, the driven pressing disc, the rotating shaft hub and the driven disc are sequentially arranged between the shell and the driving disc along the axial direction; the driving pressure plate and the driven pressure plate can move relatively along the axial direction, the elastic piece is arranged between the shell and the driving pressure plate, and the peripheral part of the diaphragm spring is fixedly connected with the driving pressure plate; the driven pressure plate is fixedly connected with the driven plate, and the damping spring is arranged between the rotating shaft hub and the driven plate; under the effect of elastic component, initiative pressure disk, driven pressure disk, pivot wheel hub, driven plate and initiative dish butt in proper order.

From the above, wherein, the elastic component is fixed between casing and initiative pressure disk and can make initiative pressure disk tightly press to driven pressure disk, because driven pressure disk and driven disk fixed connection, the pivot wheel hub is arranged in driven pressure disk and driven disk in the middle, and the three can the same speed rotation as an organic whole. The driven plate and the driving plate will contact to transmit torque when the driving plate is pressed tightly against the driven plate. In fact, the driven disc assembly may not be split into a plurality of parts such as a driving disc, a driven pressing disc and the like according to the technical means of the claims, and may also be relatively movable with respect to each other, for example, the driven disc assembly is made into an integral part, and under the action of the elastic member, it can keep friction transmission with the driving disc, and under the action of the diaphragm spring, it can leave the driving disc to cancel transmission, and also can realize clutch, and also can be in damping fit with the rotating shaft hub. However, it should be noted that, in the present invention, the driven disc assembly is not used as the output, but is output from the fan blade rotating shaft after passing through the damping spring and the rotating shaft hub, if the driven disc assembly is made into an integral part, the driven disc assembly, the rotating hub and the output shaft need to be pulled only by the deformation of the diaphragm spring during the separation action, and the bearing capacity of the diaphragm spring is far exceeded at this time, and the diaphragm spring and even the whole clutch device will fail. Therefore, the invention also considers the feasibility of the diaphragm spring based on the addition of the rotating shaft hub and the damping spring, and improves the structure of the driven disc assembly.

The further scheme is that the rotating shaft hub is provided with a first clamping groove, the driven disc is provided with a second clamping groove, and the first clamping groove and the second clamping groove are both positioned on the periphery of the fan blade rotating shaft; the damping spring is arranged in the first clamping groove and the second clamping groove; when the rotating shaft hub and the driven disc rotate relatively, the damping spring compresses and deforms.

Therefore, under the arrangement, when the rotating shaft hub and the driven disc rotate relatively, the first clamping groove and the second clamping groove which are originally opposite also deviate, so that the damping spring is compressed and deformed to generate a damping effect. The first clamping groove and the second clamping groove are arranged, so that assembly of the damping springs is completed more easily.

The elastic piece comprises a spring piece, the spring piece is bent and extended, and a first fixing hole and a second fixing hole are respectively formed in the extending two ends of the spring piece; be equipped with first fixed column on the casing, be equipped with the second fixed column on the initiative pressure disk, from top to bottom, for compression spring, set up the shell fragment and pass through fixed column and fixed orifices cooperation location, the initiative disk can be in central point well, guarantees the assembly reliability.

The pushing piece comprises a pushing sleeve, and the pushing sleeve is slidably sleeved on the fan blade rotating shaft.

From above, under this setting, the pushing sleeve can promote the inner periphery of diaphragm spring evenly, guarantees that diaphragm spring deformation is even.

In a further scheme, a coil is arranged in the push sleeve, and the clutch device comprises a magnetic attraction piece, when the coil is electrified, the push sleeve can be forced to push the inner periphery of the diaphragm spring under the electromagnetic acting force between the magnetic attraction piece and the coil.

Therefore, the push sleeve is easy to drive to slide under the arrangement, and the design difficulty is reduced.

The fan of the air conditioner provided by the second object of the invention comprises a motor, a clutch device and fan blades; the clutch device adopts the clutch device; the motor drives the driving disc, and the fan blade rotating shaft drives the fan blade.

The motor is a double-shaft motor, two output shafts of the double-shaft motor respectively drive a driving disc of a clutch device, and fan blade rotating shafts of the two clutch devices respectively drive a fan blade.

According to the scheme, when the pushing piece does not press the middle rib of the inner peripheral part of the diaphragm spring, the elastic piece is fixed between the shell and the driven disc assembly, so that the driven disc assembly can be tightly pressed against the driving disc, the driven disc assembly and the driving disc are in an abutting state, and torque is transmitted between the driven disc assembly and the driving disc in a friction mode. When the system control pushing piece moves back to the driving disc, ribs on the inner peripheral part of the diaphragm spring are pressed down towards the driving disc in the axial direction, and correspondingly, the outer peripheral part of the diaphragm spring is lifted up towards the driving disc in the axial direction, at least one part of the driven disc assembly is lifted up along with the diaphragm spring due to the fixed connection of the diaphragm spring and the driven disc assembly, the driven disc assembly and the driving disc are not contacted, friction force between the driven disc assembly and the driving disc is lost, torque is not transmitted any more, the fan blade rotating shaft loses power, and the fan blade stops rotating. Therefore, the invention can avoid collision, reduce abnormal sound times and increase user comfort experience by transmitting torque through friction contact of the driven disc and the driving disc. Further, in order to prevent the driving disc from being transmitted to the output rotating shaft hub to be excessively large, in the invention, the driven disc component is in damping fit with the rotating shaft hub in the rotating direction, the rotating shaft load of the fan blade is stable, the service life of parts is prolonged, and the service life of the whole machine is prolonged. On the other hand, in this arrangement, each fan blade can be independently controlled to be clutched.

The air conditioner provided by the third object of the invention comprises a fan, and the fan adopts the fan.

The fourth object of the invention provides a control method of an air conditioner, the air conditioner comprises a fan, and the fan adopts the fan; the control method comprises the following steps: acquiring air quality detection data; when the air quality detection data is larger than a second threshold value, controlling the fan to operate in a double-fan-blade mode; when the air quality detection data is smaller than or equal to the second threshold value and larger than the first threshold value, the pushing piece in one clutch device is controlled to operate so that the fan can operate in a single fan blade mode.

According to the scheme, firstly, based on the clutch device, torque is transmitted through friction contact between the driven disc and the driving disc, collision can be avoided, abnormal sound times are reduced, and comfort experience of a user is improved. Further, damping fit is carried out between the driven plate component and the rotating shaft hub in the rotating direction, the rotating shaft of the fan blade is stable in load, the service life of parts is prolonged, and the service life of the whole machine is prolonged. Still further, the clutch device of the invention can realize independent clutch control for each fan blade. Under the control of the control method, the working mode of the fan can be selected according to the indoor control quality, so that the indoor air quality is improved, and a user can obtain more comfortable experience.

Drawings

FIG. 1 is a first structural exploded view of a fan embodiment of the present invention.

FIG. 2 is a second structural exploded view of a fan embodiment of the present invention.

FIG. 3 is an exploded view of a third configuration of a fan embodiment of the present invention.

FIG. 4 is a block diagram of an active disk in an embodiment of a blower of the present invention.

FIG. 5 is a block diagram of a housing in an embodiment of a blower of the present invention.

FIG. 6 is a block diagram of an active platen in an embodiment of the blower of the present invention.

FIG. 7 is a block diagram of a driven platen in an embodiment of the fan of the present invention.

FIG. 8 is a block diagram of a driven disk in an embodiment of a blower of the present invention.

Fig. 9 is a block diagram of a rotor hub in a fan embodiment of the present invention.

FIG. 10 is a block diagram of a diaphragm spring and active pressure plate in an embodiment of the fan of the present invention.

FIG. 11 is a block diagram of a spring plate in an embodiment of a blower of the present invention.

FIG. 12 is a cross-sectional view of a driving disk and a driven disk in a driving state of an embodiment of a fan according to the present invention.

FIG. 13 is a cross-sectional view of a fan embodiment of the present invention with a driving disk and a driven disk in a separated state.

Detailed Description

Blower embodiment

Referring to fig. 1 to 3, the blower of the present embodiment is used for a fresh air conditioner. The fan comprises a shell component 9, two fan blades 8, a motor 1 and two clutch devices, wherein the shell component 9 comprises a first sealing cover 911, a first fixed frame 912, a first volute cover 913, an upper volute 914, a second sealing cover 921, a second fixed frame 922, a second volute cover 923 and a lower volute 924, the clutch devices comprise a driving disk 21, a shell 22, a driven disk component 3, a rotating shaft hub 4, a diaphragm spring 5, a shrapnel 6, a push sleeve 7, a damping spring 8 and a wind She Zhuaizhou 89, the driven disk component 3 comprises a driving pressure disk 31, a driven pressure disk 32 and a driven disk 33, the driven disk component 3, the rotating shaft hub 4, the diaphragm spring 5, the shrapnel 6 and the damping spring 8 form a driven structure, the shrapnel 6 is an elastic piece of the invention, and the push sleeve 7 is a pushing piece of the invention.

Referring to fig. 2 and 3, the motor 1 is a dual-shaft motor, and two output shafts of the motor 1 are connected with a clutch device between the fan blades 8, and in this embodiment, the two clutch devices have the same structure, so only one clutch device will be specifically described.

Referring to fig. 4, the driving disk 21 includes a first disk body 211 and three long third fixing posts 212 axially protruding from an axial surface of the first disk body 211 facing away from the motor 1, the three third fixing posts 212 being uniformly disposed in a circumferential direction of the first disk body 211. The first disk 211 is fixed coaxially with the output shaft of the motor 1, and three third positioning posts 212 extend in a direction away from the motor 1. The axial surfaces of the three third positioning posts 212 are friction surfaces.

Referring to fig. 5, the housing 22 includes an outer ring 221 at the outer periphery thereof, the outer ring 221 is provided with third fixing holes 222 penetrating in the axial direction and uniformly arranged in the circumferential direction of the housing 22, and in addition, three shorter first fixing posts 223 protrude from the axial surface of the outer ring 221, the three first fixing posts 223 are also uniformly arranged in the circumferential direction of the housing 22, and the first fixing posts 223 extend from a side toward the motor 1 and gradually closer to the motor 1. The housing 22 is provided with a first shaft hole 220 having a larger inner diameter at the center thereof.

Referring to fig. 6, the active platen 31 includes a second disc body 311 and three second fixing posts 312 extending axially from an axial surface of the second disc body 311 facing away from the motor 1, and the second fixing posts 312 are uniformly arranged along a circumferential direction of the active platen 31. The second disk 311 is provided with a second shaft hole 310 at the center thereof.

Referring to fig. 7, the driven platen 32 is provided at the center thereof with a third shaft hole 320, and the outer edge of the driven platen 32 is provided with four fourth fixing holes 321 penetrating in the axial direction, the four fourth fixing holes 321 being uniformly arranged in the circumferential direction of the driven platen 32.

Referring to fig. 8, the driven plate 33 includes a third plate 331 and fourth fixing posts 332 protruding from an axial surface of the third plate 331 facing away from the motor 1, the fourth fixing posts 332 protruding axially from a position on the driven plate 33 near the outer peripheral edge, and the four fourth fixing posts 332 being uniformly arranged in the circumferential direction of the driven plate 33. In addition, four second clamping grooves 333 are further disposed on the axial surface of the third disc 331 facing away from the motor 1, the second clamping grooves 333 are axially recessed in the axial surface, in this embodiment, the inner contour of the second clamping grooves 333 is rectangular, and the length direction of the second clamping grooves 333 is perpendicular to the radial direction of the driven disc 33, specifically, as shown in fig. 8, the length direction of the second clamping grooves 333 is perpendicular to the radial direction of the diameter L located at the same circumferential angle. In this embodiment, the four fourth fixing posts 332 and the four second clamping slots 333 are located at the same circumferential angle, and the space between any two adjacent fourth fixing posts 332 or between any two adjacent second clamping slots 333 is 90 degrees. In addition, an axial end surface of the driven plate 33 facing the motor 1 is a friction surface.

Referring to fig. 9, the rotary shaft hub 4 includes a fourth disc 41 and a boss 42 connected in the axial direction, wherein the fourth disc 41 is closer to the motor 1. The fourth disc 41 is provided with four first clamping slots 411, the four first clamping slots 411 are uniformly arranged on the fourth disc 41 along the circumferential direction of the rotating shaft hub 4, and the first clamping slots 411 penetrate between two axial ends of the fourth disc 41 along the axial direction. The inner contour of the first catch 411 is rectangular like the second catch 333, and the longitudinal direction of the first catch 411 is perpendicular to the radial direction of the rotary hub 4. A fourth shaft hole 420 is provided in the center of the sleeve 42.

Referring to fig. 10, the diaphragm spring 5 includes an outer peripheral portion 31 located at an outer periphery thereof and an inner peripheral portion 32 located at an inner periphery of the outer peripheral portion 31, and is provided at a center thereof with a fifth shaft hole 50. Wherein the outer peripheral portion 51 has an annular structure, and the inner peripheral portion 52 includes a plurality of ribs having good deformability provided in the circumferential direction, the ribs extending in the radial direction of the diaphragm spring 5 starting from the inner peripheral edge of the outer peripheral portion 51 and having free ends directed toward the fifth shaft hole 50.

Referring to fig. 11, the elastic sheet 6 is bent and extended, and both extended ends of the elastic sheet 6 are provided with a first fixing hole 61 and a second fixing hole 62, respectively. Referring to fig. 3 to 5 and 12, the driving disk 21 is coaxially fixed to the housing 22, and mainly, is inserted into and assembled with the third fixing holes 222 through the third fixing posts 212. A space for mounting other parts is formed between the driving disk 21 and the housing 22, and the friction surface of the driving disk 21 faces the space.

Referring to fig. 3 and 12, a driving platen 31, a driven platen 32, a rotating shaft hub 4, and a driven platen 33 are sequentially disposed in the axial direction between the housing 22 and the driving platen 21.

Referring to fig. 3, 5 and 10 to 12, the two extending ends of the three elastic pieces 6 are respectively abutted on the casing 22 and the active pressing plate 31, the first fixing column 223 of the casing 22 is matched with the first fixing hole 61 at one end of the elastic piece 6, and the second fixing column 312 of the active pressing plate 31 is matched with the second fixing hole 62 at the other end of the elastic piece 6. In addition, as shown in fig. 10, the outer peripheral portion 51 of the diaphragm spring 5 is fixedly connected to the side of the active pressure plate 31 facing away from the motor 1, and the diaphragm spring 5 is coaxially fixed with the active pressure plate 31. At this time, the fifth shaft hole 50 of the diaphragm spring 5 is in axial communication with the first shaft hole 220 of the housing 22.

Referring to fig. 3, 7-9 and 12, the driven platen 32 is coaxially and fixedly connected with the driven platen 33, and mainly, the driven platen 32 is in plug-in fit with four fourth fixing holes 321 on the driven platen 32 through four fourth fixing columns 332 on the driven platen 33. In the axial direction, the fourth disc 41 of the rotating shaft hub 4 is located between the driven platen 32 and the third disc 331 of the driven platen 33, and the boss 42 of the rotating shaft hub 4 passes through the third shaft hole 320 of the driven platen 32. At this time, the four first clamping grooves 411 and the four second clamping grooves 333 are axially communicated and form mounting cavities, and the four damper springs 8 are respectively mounted in the four mounting cavities. In this way, in practice, the opposite ends of the damping spring 8 are abutted between the rotating shaft hub 4 and the driven plate 33, and the damping spring 8 is elastically deformed by compression once the relative rotation occurs between the rotating shaft hub 4 and the driven plate 33. In this way, a damping fit between the shaft hub 4 and the driven disk 33 in the direction of rotation of the fan blade shaft is achieved by means of the damping spring 8.

Referring to fig. 6, 9 and 12, the driving platen 31 is coaxially overlapped with the driven platen 32, and the boss 42 passes through the second shaft hole 310 of the driving platen 31, at this time, the driving platen 31 and the driven platen 32 are relatively movable in the axial direction.

Referring to fig. 5, 9, 10 and 12, the fan blade rotation shaft 89 is fixedly inserted into the fourth shaft hole 420 of the shaft sleeve portion 42 and sequentially passes through the fifth shaft hole 50 of the diaphragm spring 5 and the first shaft hole 220 of the housing 22 to protrude out of the housing 22 to be fixedly connected with the fan blade 8 (shown in fig. 1). As shown in fig. 12, the push sleeve 7 is slidably fitted over the fan blade rotation shaft 89 in the axial direction, is located in the first shaft hole 220 of the housing 22, and axially faces the inner peripheral portion 52 of the diaphragm spring 5.

In comparison between fig. 12 and 13, as shown in fig. 12, when the inner peripheral portion 52 of the diaphragm spring 5 is not pressed down by the push sleeve 7, the elastic piece 6 acts to bring the driving pressure plate 31, the driven pressure plate 32, the driven plate 33 and the driving plate 21 into axial abutment, and torque is transmitted in a frictional manner between friction surfaces of both the driven plate 33 and the driving plate 21. As shown in fig. 13, when the push sleeve 7 moves toward the motor 1, it will abut against the inner peripheral portion 52 of the diaphragm spring 5, the ribs of the inner peripheral portion 52 are pressed down toward the driving disk 21 in the axial direction, and in contrast, the outer peripheral portion 51 of the diaphragm spring 5 and the driving platen 31 connected with the diaphragm spring are lifted away from the driving disk 21, after the pressing force from the driving platen 31 is lost, the driven disk 33 is separated from the driving disk 21, the friction force between the driven disk 33 and the driving disk is lost, the torque will not be transmitted any more, the fan blade rotating shaft 89 loses power, and the fan blade 8 stops rotating.

Not shown, in this embodiment, the coil capable of being energized is disposed in the push sleeve 7, and in addition, the clutch device further includes a magnetic conductive metal member or a magnet disposed in a range where the coil can sense, where the magnetic conductive metal member and the magnet can be used as the magnetic attraction member of the present invention, and when the coil is energized, the push sleeve 7 can be forced to push the inner peripheral portion 52 of the diaphragm spring 5 under electromagnetic force between the magnetic attraction member and the coil. For example, the magnetic attraction member is a magnetic conductive metal member, and only attraction exists between the energizing coil and the magnetic conductive metal member, so that the magnetic conductive metal member should be located closer to the driving disc 21 than the push sleeve 7 in the axial direction. For example, the magnet may be selected by a magnet, and the push sleeve 7 may be forced to slide by attraction or repulsion between the magnet and the energizing coil, for example, the push sleeve 7 may be pushed to slide by repulsion between the magnet and the energizing coil, and the magnet may be located farther from the driving disc 21 than the push sleeve 7 in the axial direction.

The axial direction refers to the axial direction of the fan blade rotating shaft 89.

The invention also claims an air conditioner, in particular a fresh air conditioner, comprising the clutch device or the fan of the invention.

Control method embodiment of air conditioner

The air conditioner in the embodiment is a fresh air conditioner, the fresh air conditioner comprises the fan in the fan embodiment, the motor of the fan is a double-shaft motor, and the clutch device is arranged between each output shaft of the motor and the fan blade required to be driven by the output shaft.

The control method of the air conditioner comprises the following steps:

firstly, step S1 is executed, and air quality detection data are continuously obtained after the air conditioner is started.

And then executing the step S2, judging whether the acquired air quality detection data is larger than a preset second threshold value, and if so, executing the step S3, and controlling the air conditioner to operate in a secondary fresh air mode.

If not, executing the step S4, judging whether the acquired air quality detection data is smaller than or equal to the second threshold value and larger than the first threshold value, and if so, controlling the air conditioner to operate in a primary fresh air mode.

And if the air quality detection data is smaller than the first threshold value, closing the fresh air mode.

And the air quality detection data are kept and the judgment of the steps S2 and S3 is continuously executed no matter the air conditioner is controlled to operate in the primary fresh air mode or the secondary fresh air mode, and the operation mode of the air conditioner is regulated and controlled in real time.

In the secondary fresh air mode, the fan operates in a double-fan-blade mode. After the motor 1 is started, two clutch devices on two sides of the motor 1 are in a transmission state shown in fig. 12, and at the moment, two fan blades 8 are in normal operation.

In the primary fresh air mode, the fan is in a single fan blade mode. After the motor 1 is started, the push sleeve 7 in the clutch device at one side is controlled to operate, and the clutch device is brought into a separation state shown in fig. 13, at the moment, only one fan 8 is normally operated.

In the fresh air closing mode, the motor 1 may be directly turned off, or the pushing sleeves 7 in the two clutch devices on both sides of the motor 1 are controlled to operate and make both clutch devices enter the separated state shown in fig. 13. At this time, both fan blades 8 stop working.

The control method of the air conditioner can automatically operate the fresh air mode according to the detected indoor air quality data, rapidly convey fresh air to the indoor, improve the indoor air quality and improve the user experience comfort level.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the invention, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the invention.

Claims

1. A clutch device of a fan comprises a driving disc, a driven structure and wind She Zhuaizhou;

the method is characterized in that:

the clutch device of the fan also comprises a shell and a pushing piece, and the driven structure comprises a driven disc assembly, a rotating shaft hub, an elastic piece and a diaphragm spring;

the shell is fixedly connected with the driving disc along the axial direction of the fan blade rotating shaft, the driven disc assembly and the rotating shaft hub are both arranged between the driving disc and the shell, the elastic piece is arranged between the shell and the driven disc assembly, and the driven disc assembly is forced to be in butt joint with the driving disc and in friction transmission under the action of the elastic piece;

the rotating shaft hub is coaxially fixed with the fan blade rotating shaft, the diaphragm spring is sleeved outside the fan blade rotating shaft, and the outer periphery of the diaphragm spring is fixedly connected with the driven disc assembly;

the pushing member may push the inner peripheral portion of the diaphragm spring and force the outer peripheral portion together with the driven disc assembly to move in a direction away from the driving disc;

the rotating shaft hub and the driven disc assembly are coaxially arranged and are in damping fit along the rotating direction of the fan blade rotating shaft.

2. The clutched device of the blower of claim 1, wherein:

the driven disc assembly further comprises a damping spring, and the damping spring is abutted between the driven disc assembly and the rotating shaft hub along the rotating direction;

when the rotating shaft hub and the driven disc assembly rotate relatively, the damping spring deforms elastically.

3. The clutched device of the blower of claim 2, wherein:

at least two damping springs are arranged along the circumference of the fan blade rotating shaft.

4. The clutched device of the blower of claim 2, wherein:

the driven disc assembly comprises a driving pressing disc, a driven pressing disc and a driven disc, and the driving pressing disc, the driven pressing disc, the rotating shaft hub and the driven disc are sequentially arranged between the shell and the driving disc along the axial direction;

the driving pressure plate and the driven pressure plate can move relatively along the axial direction, the elastic piece is arranged between the shell and the driving pressure plate, and the peripheral part is fixedly connected with the driving pressure plate;

the driven pressing disc is fixedly connected with the driven disc, and the damping spring is arranged between the rotating shaft hub and the driven disc;

under the effect of elastic component, initiative pressure disk driven pressure disk pivot wheel hub driven disk with the initiative dish butt in proper order.

5. The clutched device of the blower of claim 4, wherein:

the rotating shaft hub is provided with a first clamping groove, the driven disc is provided with a second clamping groove, and the first clamping groove and the second clamping groove are both positioned on the periphery of the fan blade rotating shaft;

the damping spring is arranged in the first clamping groove and the second clamping groove, and when the rotating shaft hub rotates relative to the driven disc, the damping spring is compressed and deformed.

6. The fan clutch device according to claim 4 or 5, wherein:

the elastic piece comprises an elastic piece, the elastic piece is bent and extended, and a first fixing hole and a second fixing hole are respectively formed in the extending two ends of the elastic piece;

the shell is provided with a first fixing column, the driving pressing plate is provided with a second fixing column, two extending ends of the elastic sheet are respectively abutted to the shell and the driving pressing plate, the first fixing column is matched with the first fixing hole, and the second fixing column is matched with the second fixing hole.

7. The fan clutch apparatus according to any one of claims 1 to 5, wherein:

8. The clutched device of the blower of claim 7, wherein:

the clutch device comprises a magnetic attraction piece, and when the coil is electrified, the magnetic attraction piece and the coil can be forced to push the inner peripheral part under electromagnetic acting force.

9. A fan of an air conditioner comprises a motor, a clutch device and fan blades;

the method is characterized in that:

the clutch device adopts the clutch device as defined in any one of the above claims 1 to 8;

the motor drives the driving disc, and the fan blade rotating shaft drives the fan blade.

10. The fan of an air conditioner according to claim 9, wherein:

the motor is a double-shaft motor, two output shafts of the double-shaft motor respectively drive the driving disc of the clutch device, and the fan blade rotating shafts of the two clutch devices respectively drive one fan blade.

11. An air conditioner comprising a fan, wherein the fan is as claimed in claim 9 or 10.

12. The control method of the air conditioner comprises the steps that the air conditioner comprises a fan;

the method is characterized in that:

the fan adopts the fan as claimed in claim 10;

the control method comprises the following steps:

acquiring air quality detection data;

when the air quality detection data is larger than a second threshold value, controlling the fan to operate in a double-fan-blade mode;

and when the air quality detection data is smaller than or equal to the second threshold value and larger than the first threshold value, controlling the pushing piece in one of the clutch devices to operate so that the fan operates in a single fan blade mode.