CN213711417U

CN213711417U - Centrifugal wind wheel, fan, fresh air device and air conditioner

Info

Publication number: CN213711417U
Application number: CN202022478606.XU
Authority: CN
Inventors: 吕建华; 徐智勇; 王龙飞; 谢月淦
Original assignee: Handan Midea Air Conditioning Equipment Co Ltd
Current assignee: Handan Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-16
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a centrifugal wind wheel, fan, new trend device and air conditioner, wherein, centrifugal wind wheel is used for the fan, the fan has the motor, be equipped with first locating surface on the outer wall of the output shaft of motor, centrifugal wind wheel includes: the shaft seat is provided with a shaft hole for inserting an output shaft of a motor, the inner wall of the shaft hole is provided with a second positioning surface, and the second positioning surface is used for limiting the relative rotation of the shaft seat and the output shaft of the motor when abutting against the first positioning surface; and the shaft seat is connected with the output shaft of the motor through the fastener. The utility model discloses an adopt the second locating surface of setting on the axle bed to cooperate with the first locating surface of setting on the output shaft of motor, realize that the axle bed carries on spacingly, and then when making centrifugal wind wheel and motor phase cooperation, the relative movement of centrifugal wind wheel can be restricted to first locating surface and second locating surface to reduce the vibration noise.

Description

Centrifugal wind wheel, fan, fresh air device and air conditioner

Technical Field

The utility model relates to an air conditioner field, in particular to centrifugal wind wheel, fan, new trend device and air conditioner.

Background

In the fresh air system, the impeller of the centrifugal wind wheel is driven to rotate by the motor, whether the fixing mode of the centrifugal wind wheel is reliable or not is decisive for the reliability, noise and the like of the fresh air system, and the existing connecting mode of the centrifugal wind wheel and the output shaft of the motor mainly adopts an optical axis, and a central opening column of the centrifugal wind wheel is fixed by a fastening snap spring; the jump ring easily became invalid, had the risk of loosing and skidding of taking off, caused the easy output shaft with the motor of centrifugal wind wheel to become flexible each other, the output shaft of the relative motor of centrifugal wind wheel rotates, produced the running noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not hard up problem appears with the output shaft of motor easily in centrifugal wind wheel, fan, new trend device and air conditioner that centrifugal wind wheel, fan, new trend device and air conditioner now aim at improving.

In order to achieve the above object, the utility model provides a centrifugal wind wheel for the fan, the fan has the motor, be equipped with first locating surface on the outer wall of the output shaft of motor, centrifugal wind wheel includes:

the shaft seat is provided with a shaft hole for inserting an output shaft of a motor, the inner wall of the shaft hole is provided with a second positioning surface, and the second positioning surface is used for limiting the relative rotation of the shaft seat and the output shaft of the motor when abutting against the first positioning surface; and

and the shaft seat is connected with the output shaft of the motor through the fastener.

Optionally, the fastener penetrates through the shaft seat to be connected with the output shaft of the motor.

Optionally, the axial direction of the fastener is arranged perpendicular to the first locating surface and the second locating surface.

Optionally, the centrifugal wind wheel further comprises:

the impeller is connected to the shaft seat and provided with blades, and avoidance holes are formed in the positions, corresponding to the fasteners, of the blades.

Optionally, the relief hole is coaxial with the fastener.

Optionally, the centrifugal wind wheel further comprises:

the impeller is connected to the shaft seat; and

and the shaft seat is connected with the impeller through the vibration reduction rubber ring.

Optionally, the vibration reduction rubber ring is arranged around the shaft seat, a third positioning surface is concavely arranged on the outer wall of the shaft seat, and the inner wall of the vibration reduction rubber ring is embedded in the third positioning surface.

Optionally, the damping rubber ring encircles the axle bed setting, centrifugal wind wheel still includes:

and the edge of the vibration reduction rubber ring is connected with the impeller through the connecting ring.

Optionally, the connecting ring is integrally connected with the damping rubber ring; and/or

The connecting ring is integrally connected with the impeller.

Optionally, the shaft seat and/or the connecting ring are made of aluminum.

The utility model discloses still provide a fan, include:

centrifugal wind wheels, as previously described; and

the motor is provided with an output shaft, a first positioning surface is arranged on the outer wall of the output shaft, the output shaft is inserted into the shaft hole of the centrifugal wind wheel, and a second positioning surface of the shaft seat of the centrifugal wind wheel is abutted against the first positioning surface so as to limit the relative rotation of the shaft seat and the output shaft of the motor.

Optionally, a limit boss is arranged on the output shaft, and the shaft seat of the centrifugal wind wheel abuts against the limit boss.

The utility model discloses still provide a new trend device, new trend device includes as before the fan.

The utility model discloses still provide an air conditioner, the air conditioner includes as before the fan.

The utility model discloses technical scheme cooperatees with the first locating surface of setting on the output shaft of motor through the second locating surface that adopts the setting on the axle bed, realizes that the counter shaft seat carries on spacingly, and then when making centrifugal wind wheel and motor phase cooperation, the removal that centrifugal wind wheel can be restricted to first locating surface and second locating surface, the axle bed that makes centrifugal wind wheel only can be along with the output shaft synchronous motion of motor, it is not hard up to prevent to appear between the output shaft of centrifugal wind wheel and motor to reduce noise vibration.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a centrifugal wind wheel of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the motor of the present invention;

FIG. 3 is a top view of the present invention in a state where the shaft seat is engaged with the motor;

fig. 4 is a schematic structural diagram of an embodiment of the impeller of the present invention;

FIG. 5 is a schematic structural view of the fastener according to the next embodiment of the present invention;

fig. 6 is a schematic structural view of an embodiment of a connection portion between the shaft seat and the impeller according to the present invention;

fig. 7 is a schematic structural view of an embodiment of the fresh air device of the present invention;

FIG. 8 is a schematic structural diagram of the centrifugal wind wheel and the motor in an exploded state in FIG. 7;

fig. 9 is a schematic structural diagram of the volute of fig. 7 in a state of being engaged with the motor according to the embodiment.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Spiral casing	11	Motor support
12	Electric machine	13	Output shaft
				14	A first positioning surface	15	Spacing boss
20	Impeller	21	Blade
				22	Second clamping groove	23	Avoiding hole
30	Axle seat	31	Shaft hole
				32	Second positioning surface	33	Third positioning surface
40	Vibration damping rubber ring	41	First clamping groove
				50	Connecting ring	60	Fastening piece

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a centrifugal wind wheel for the fan, the fan has motor 12, motor 12 of fan drives impeller 20 and rotates to realize the operation of drive fan. The fan can be used for a fresh air device, an air conditioner and the like. The motor 12 is provided with an output shaft 13, the centrifugal wind wheel is provided with a shaft seat 30 matched with the motor 12, and the output shaft 13 is used for driving the shaft seat 30 to drive the centrifugal wind wheel to rotate.

Referring to fig. 1 and 2, in an embodiment, a first positioning surface 14 is disposed on an outer wall of an output shaft 13 of the motor 12, and the centrifugal wind wheel includes: the shaft seat 30 is provided with a shaft hole 31 for inserting the output shaft 13 of the motor 12, the inner wall of the shaft hole 31 is provided with a second positioning surface 32, and the second positioning surface 32 is used for limiting the relative rotation of the shaft seat 30 and the output shaft 13 of the motor 12 when being abutted against the first positioning surface 14; and the shaft seat 30 is connected with the output shaft 13 of the motor 12 through the fastener 60.

The shaft seat 30 is a part of the centrifugal wind wheel, and the shaft hole 31 is a through hole arranged on the shaft seat 30 and is adapted to the output shaft 13 of the motor 12. The second positioning surface 32 is a plane on the inner wall of the shaft hole 31, the first positioning surface 14 is arranged on the outer wall of the output shaft 13 of the motor 12, when the output shaft 13 of the motor 12 is inserted into the shaft hole 31 of the shaft seat 30, the first positioning surface 14 and the second positioning surface 32 are attached to each other, and when the motor runs, the first positioning surface and the second positioning surface can be abutted to each other, so that the shaft seat 30 cannot rotate relative to the output shaft 13 of the motor 12. The shaft seat 30 can only rotate synchronously with the output shaft 13 of the motor 12 under the limitation of the first positioning surface 14 and the second positioning surface 32.

The fastener 60 is used to limit the shaft seat 30 on the output shaft 13 of the motor 12, so as to prevent the shaft seat 30 from moving axially along the output shaft 13 of the motor 12, and prevent the output shaft 13 of the motor 12 from falling off.

Referring to fig. 3, the first positioning surface 14 and the second positioning surface 32 are adapted, and when the output shaft 13 of the motor 12 is inserted into the shaft hole 31, the first positioning surface 14 and the second positioning surface 32 are abutted to each other. The second positioning surface 32 may be a flat surface on the inner wall of the axial hole 31 to form a D-shaped cross section as shown in fig. 3. A plurality of planes may be disposed on the inner wall of the shaft hole 31, so that a stepped first positioning surface 14 is formed on the inner wall of the shaft hole 31, the outer wall of the output shaft 13 of the motor 12 is matched with the inner wall of the shaft hole 31, and when the output shaft 13 of the motor 12 is inserted into the shaft hole 31, the shaft seat 30 cannot rotate relative to the output shaft 13 of the motor 12, and only can rotate synchronously with the output shaft 13 of the motor 12.

The fastener 60 may be fixed on the output shaft 13 of the motor 12, and abut the shaft seat 30 on the output shaft 13 of the motor 12, so that the output shaft 13 of the motor 12 and the shaft seat cannot move axially relative to each other. In one embodiment, the fastener 60 extends through the shaft seat 30 and is coupled to the output shaft 13 of the motor 12. The fastening member 60 may be a screw or the like, so that it can penetrate through the shaft seat 30 and be inserted into the output shaft 13 of the motor 12 along the radial direction, thereby fixing the shaft seat 30 and preventing the shaft seat from rotating relative to the output shaft of the motor. A through hole may be provided in the shaft seat 30 while a threaded hole is provided in the output shaft 13 of the motor 12 to threadedly couple the fastener 60 to the output shaft 13 of the motor 12.

Optionally, the fastener 60 is disposed axially perpendicular to the first positioning surface 14 and the second positioning surface 32 to facilitate the mutual positioning of the fastener 60 and the shaft seat 30. When the shaft seat 30 is manufactured, a threaded hole is radially formed in the output shaft 13 of the motor 12, and the fastener 60 penetrates through the shaft seat 30 and is screwed on the output shaft 13 of the motor 12. A plane parallel to the second positioning surface 32 may be disposed on the outer wall of the shaft seat 30, so that the fastening member 60 can abut against the plane on the outer wall of the shaft seat 30, thereby facilitating positioning and fixing and preventing the fastening member 60 from falling off.

Because the output shaft 13 of the motor 12 is matched with the shaft seat 30 in a positioning way through the first positioning surface 14 and the second positioning surface 32, the relative state of the shaft seat 30 and the motor 12 is limited, when the shaft seat 30 is assembled with the motor 12, the shaft seat 30 can only be driven by the motor 12 to synchronously rotate, so that the dislocation is not easy to occur, and the noise caused by the dislocation of the shaft seat 30 and the motor 12 is avoided. When the fastening member 60 fixes the shaft seat 30 on the output shaft 13 of the motor 12, the axial movement of the shaft seat 30 is further limited, so that the shaft seat 30 is kept at a preset position, the stability of the shaft seat 30 is further improved, and the vibration noise caused by the axial movement of the shaft seat 30 is prevented.

Referring to fig. 4 and 5, the centrifugal wind wheel further includes: the impeller 20 is connected to the shaft seat 30, the impeller 20 is provided with a blade 21, and a relief hole 23 is formed in the position, corresponding to the fastener 60, of the blade 21. The blades 21 are arranged at intervals along the edge of the impeller 20, the blades 21 enclose to form a wheel cavity, and the shaft seat 30 is connected with the impeller 20, so that the shaft seat 30 can rotate synchronously with the impeller 20. When the motor 12 drives the shaft seat 30 to rotate, the impeller 20 rotates synchronously to drive airflow to enter the impeller cavity, so that airflow input is realized.

The avoiding hole 23 is formed in a through hole in the blade 21, so that an external tool can penetrate through the avoiding hole 23 and extend into the cavity of the impeller 20, and the fastening piece 60 can be detached by using a tool. When the fastening piece 60 is detached by using a tool, the impeller 20 is moved along the axial direction of the motor 12, so that the shaft seat 30 and the impeller 20 are moved away from the motor 12 synchronously, thereby detaching the impeller 20, and when the overall volume of the centrifugal wind wheel is small, the centrifugal wind wheel can be detached from an external control tool conveniently. By providing the relief hole 23, the impeller 20 can be detached from the outside of the impeller 20. When will centrifugal wind wheel sets up in the fan, when the centrifugal fan outside is provided with spiral case 10, can with dodge hole 23 and rotate to spiral case 10's air outlet one side, stretch into spiral case 10 with the instrument from spiral case 10 outside in, and run through dodge hole 23, it is right centrifugal wind wheel dismantles. Optionally, the relief hole 23 is provided coaxially with the fastener 60 to facilitate alignment of a tool with the fastener 60.

Referring to fig. 6, in an embodiment, the centrifugal wind wheel further includes: the impeller 20 is connected to the shaft seat 30; and the shaft seat 30 is connected with the impeller 20 through the vibration reduction rubber ring 40. The vibration reduction rubber ring 40 is used for connecting the shaft seat 30 and the impeller 20, and when the shaft seat 30 and the output shaft 13 of the motor 12 rotate synchronously, the vibration reduction rubber ring 40 and the shaft seat 30 move synchronously and transmit acting force to the impeller 20, so that the impeller 20 is driven to move.

When the centrifugal wind wheel is manufactured, a mounting hole may be formed in the impeller 20, the shaft seat 30 is disposed in the mounting hole, and the damping rubber ring 40 is disposed between an inner wall of the mounting hole and an outer wall of the shaft seat 30, so as to drive the impeller 20 to rotate through the shaft seat 30.

The damping rubber ring 40 is used to transmit the acting force of the shaft seat 30 to the impeller 20. Because the motor 12 can generate certain vibration when running, the vibration damping rubber ring 40 can prevent the vibration generated by the motor 12 from being transmitted to the impeller 20 through the shaft seat 30, and further can reduce the vibration noise of the impeller 20.

When the damping rubber ring 40 is manufactured, the damping rubber ring 40 may be annularly arranged on the shaft seat 30, and the shaft seat 30 and the damping rubber ring 40 may be in interference fit, so that the shaft seat 30 and the damping rubber ring 40 can synchronously rotate. In this embodiment, optionally, the damping rubber ring 40 is disposed around the shaft seat 30, a third positioning surface 33 is concavely disposed on an outer wall of the shaft seat 30, and an inner wall of the damping rubber ring 40 is embedded in the third positioning surface 33. The third positioning surface 33 is a plane disposed on the outer wall of the shaft seat 30, and a plane disposed on the inner wall of the damping rubber ring 40 and in spacing fit with the third positioning surface 33 is disposed on the inner wall of the damping rubber ring 40, so that the third positioning surface 33 limits the relative movement of the damping rubber ring 40, and the damping rubber ring 40 is prevented from being dislocated relative to the shaft seat 30.

When the centrifugal wind wheel is manufactured, the shaft seat 30 and the impeller 20 are fixed on a mold after the shaft seat 30 is molded, the vibration reduction rubber ring 40 is molded in the mold by casting, in the molding process of the vibration reduction rubber ring 40, the inner side edge of the vibration reduction rubber ring 40 is attached to the outer wall of the shaft seat 30, and the outer edge of the vibration reduction rubber ring 40 is connected with the impeller 20 to form an integral structure so as to reduce the number of connecting pieces on the centrifugal wind wheel.

In an embodiment, the damping rubber ring 40 is disposed around the shaft seat 30, and the centrifugal wind wheel further includes: and the edge of the damping rubber ring 40 is connected with the impeller 20 through the connecting ring 50. The connecting ring 50 is used as a connecting piece between the vibration damping rubber ring 40 and the impeller 20, and the connecting ring 50 is arranged on the outer side of the vibration damping rubber ring 40 and connected with the impeller 20.

When the centrifugal wind wheel is manufactured, the shaft seat 30 and the connecting ring 50 are placed on a mold after being molded, rubber is filled in the mold to form the vibration reduction rubber ring 40, and after the vibration reduction rubber ring 40 is molded, the shaft seat 30, the vibration reduction rubber ring 40 and the connecting ring 50 form an integral step axis so that the vibration reduction rubber ring 40 and the connecting ring 50 form an integrally connected structure. The axis of the pace is placed on a mould, and a chassis of the impeller 20 is formed on the mould, so that the chassis of the impeller 20 and the connecting ring 50 form a whole, and the connecting ring 50 and the impeller 20 form an integrally connected structure. Blades 21 are mounted on the edge of the chassis of the impeller 20 to form the centrifugal wind wheel structure.

In the process of forming the centrifugal wind wheel structure, a first clamping groove 41 is formed on the periphery of the damping rubber ring 40, and the inner edge of the connecting ring 50 is clamped in the first clamping groove 41. The impeller 20 is formed with a second catching groove 22, and the outer edge of the connection ring 50 is caught in the second catching groove 22. By adopting the integral forming mode, the axis of the step and the impeller 20 can form a firm integral structure, and the stability of the impeller 20 is further improved. Meanwhile, the number of connecting pieces between the impeller 20 and the shaft seat 30 can be reduced, and the manufacturing process is simplified.

For convenience of molding, the shaft seat 30 and/or the connecting ring 50 are optionally made of aluminum to reduce the overall weight of the centrifugal wind wheel, and can be conveniently molded.

The utility model discloses on the basis of above-mentioned centrifugal wind wheel, still provide the embodiment of a fan.

Referring to fig. 7, 8 and 9, the blower includes: a centrifugal wind wheel as described in any of the above embodiments; and the motor 12 is provided with an output shaft 13, a first positioning surface 14 is arranged on the outer wall of the output shaft 13, the output shaft 13 is inserted into the shaft hole 31 of the centrifugal wind wheel, and a second positioning surface 32 of the shaft seat 30 of the centrifugal wind wheel is abutted against the first positioning surface 14 so as to limit the relative rotation of the shaft seat 30 and the output shaft 13 of the motor 12. The motor 12 is used for driving the centrifugal wind wheel to rotate so as to enable airflow to enter the fan.

The fan may further include a volute 10, the centrifugal wind wheel is installed in the volute 10, and the motor 12 may be connected to the volute 10 through a motor bracket 11. An air inlet and an air outlet are arranged on the volute 10, and when the motor 12 runs, airflow enters the centrifugal wind wheel from the air inlet and is output through the air outlet.

The first positioning surface 14 is a plane arranged on the periphery of the output shaft 13 of the motor 12 and is used for being matched with the centrifugal wind wheel, when the output shaft 13 of the motor 12 is inserted into the shaft hole 31 of the shaft seat 30 of the centrifugal wind wheel, the shaft seat 30 is fixed on the output shaft 13 of the motor 12 through the fastener 60 so as to be matched with the first positioning surface 14 and the second positioning surface 32 to limit the moving direction of the centrifugal wind wheel, the centrifugal wind wheel is prevented from moving relative to the output shaft 13 of the motor 12, and vibration noise is reduced. When being provided with on the centrifugal wind wheel dodge hole 23, can run through the instrument spiral case 10 and stretch into inside the centrifugal wind wheel to realize the dismantlement of fastener 60, and then realize the inside quick assembly disassembly of fan. When the vibration damping rubber ring 40 is adopted to connect the shaft seat 30 and the impeller 20, the vibration damping rubber ring 40 can buffer the vibration of the shaft seat 30 of the centrifugal wind wheel, so that the vibration noise of the centrifugal wind wheel can be further reduced.

Referring to fig. 2, fig. 6 and fig. 9, in order to fix the centrifugal wind wheel conveniently, in an embodiment, a limiting boss 15 is disposed on the output shaft 13, and the shaft seat 30 of the centrifugal wind wheel abuts against the limiting boss 15. The limiting boss 15 is disposed on the output shaft 13 of the motor 12, and when the fastener 60 is connected to the output shaft 13 of the motor 12 and the shaft seat 30, the shaft seat 30 abuts against the limiting boss 15, so as to limit the axial movement of the centrifugal wind wheel.

The utility model provides an embodiment of new trend device on the basis of above-mentioned fan, new trend device includes as above-mentioned arbitrary embodiment the fan.

The utility model discloses on the basis of above-mentioned fan, provide an embodiment of air conditioner, the air conditioner includes as above-mentioned arbitrary embodiment the fan.

Claims

1. The utility model provides a centrifugal wind wheel for the fan, the fan has the motor, its characterized in that, be equipped with first locating surface on the outer wall of the output shaft of motor, centrifugal wind wheel includes:

2. A centrifugal wind wheel according to claim 1, wherein the fastener extends through the shaft seat and is connected to the output shaft of the motor.

3. A centrifugal wind wheel according to claim 2, wherein the axial direction of the fastening member is arranged perpendicular to the first and second positioning surfaces.

4. A centrifugal wind rotor according to claim 3, further comprising:

5. A centrifugal wind wheel according to claim 4, wherein the relief holes are provided coaxially with the fasteners.

6. A centrifugal wind rotor according to claim 1, further comprising:

the impeller is connected to the shaft seat; and

7. A centrifugal wind wheel according to claim 6, characterized in that the damping rubber ring is arranged around the shaft seat, a third positioning surface is concavely arranged on the outer wall of the shaft seat, and the inner wall of the damping rubber ring is embedded on the third positioning surface.

8. The centrifugal wind wheel according to claim 6, wherein the vibration damping rubber ring is disposed around the shaft seat, and the centrifugal wind wheel further comprises:

9. A centrifugal wind wheel according to claim 8, wherein the connection ring is integrally connected to the damper rubber ring; and/or

The connecting ring is integrally connected with the impeller.

10. A centrifugal wind wheel according to claim 8, wherein the shaft seat and/or the connection ring are made of aluminum.

11. A fan, comprising:

a centrifugal wind rotor according to any one of claims 1 to 10; and

12. The fan of claim 11, wherein the output shaft is provided with a limit boss, and the shaft seat of the centrifugal wind wheel abuts against the limit boss.

13. A fresh air device, characterized in that the fresh air device comprises a fan according to claim 11 or 12.

14. An air conditioner characterized in that it comprises a fan according to claim 11 or 12.