CN214198901U - Fan and air conditioner - Google Patents

Abstract

The utility model provides a fan and air conditioner, the fan includes the spiral case, the fan blade, first support, the second support, including a motor, an end cap, a controller, and a cover plate, first damping portion, second damping portion and third damping portion, wherein, the fan blade setting is in the induced air intracavity of spiral case, first support and second support are located the both sides in induced air chamber respectively, the motor includes main part and drive shaft, the main part is through first damping portion and first leg joint, the middle part of drive shaft is passed through second damping portion and wind leaf drive and is connected, the one end of keeping away from the main part of drive shaft is passed through third damping portion and second leg joint. Adopt this scheme, through first damping portion and second damping portion, the vibration transmission of reducible fan blade and motor is to spiral case isotructure, can support the drive shaft through third damping portion, avoids the drive shaft unsettled to the vibration of drive shaft and fan has further been reduced.

Description

Fan and air conditioner

Technical Field

The utility model relates to an air conditioner technical field particularly, relates to a fan and air conditioner.

Background

In order to meet the air output of the industry standard, a cabinet air conditioner usually adopts 2 or 3 fans with small-diameter centrifugal fan blades. In order to facilitate assembly and reduce cost, some air conditioners adopt a centrifugal fan to drive supply air, the diameter and thickness of the fan are increased, the fan is easy to rotate and vibrate in the strong blocking rotation working process of the air conditioner, and rigid parts are used among all parts in the fan, so that the vibration is easily transmitted to the whole machine, and the problems of whole machine vibration and large noise are caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fan and air conditioner to reduce the vibration of current fan.

In order to achieve the above object, according to the utility model discloses an aspect, the utility model provides a fan, including spiral case, first support, second support, fan blade, motor, first damping portion, second damping portion and third damping portion, wherein, the fan blade sets up the induced air intracavity of spiral case, first support with the second support is located respectively the both sides in induced air chamber, the motor includes main part and drive shaft, the main part passes through first damping portion with first leg joint, the middle part of drive shaft is passed through second damping portion with the fan blade drive is connected, keeping away from of drive shaft the one end of main part is passed through third damping portion with second leg joint.

Further, the second vibration damping portion includes: the outer sleeve body is arranged in the fan blade; the inner sleeve body is arranged in the outer sleeve body, and the driving shaft penetrates through the inner sleeve body; and the elastic sleeve is arranged between the outer sleeve body and the inner sleeve body.

Further, the inner sleeve body is provided with a rotation stopping groove, and the second vibration damping part further comprises: and the rotation stopping structure is connected with the driving shaft and arranged in the rotation stopping groove so as to limit the circumferential relative positions of the driving shaft and the inner sleeve body.

Furthermore, a groove is formed in the outer peripheral surface of the outer sleeve body, and a part of the structure of the fan blade is formed in the groove in an injection molding mode.

Further, the second vibration damping portion further includes: the locating part, the locating part joint is in the recess of drive shaft, the locating part with the terminal surface butt of the internal cover body.

Further, the first vibration damping portion includes a plurality of elastic members detachably coupled to the first bracket, and the plurality of elastic members are coupled to different positions of the body, respectively.

Furthermore, the main part has a plurality of draw-in grooves, and is a plurality of elastic component and a plurality of draw-in groove joint one-to-one, every the elastic component all is fixed through the fastener on the first support.

Further, the third vibration damping portion comprises an elastic seat and a bearing arranged in the elastic seat, the elastic seat is arranged on the second support, and the driving shaft penetrates through the bearing.

Further, the first support and the second support are both connected with the volute, and the fan further comprises: a first elastic pad disposed between the first bracket and the volute; a second resilient pad disposed between the second bracket and the volute.

According to another aspect of the utility model, an air conditioner is provided, the air conditioner includes foretell fan.

Use the technical scheme of the utility model, a fan is provided, the fan includes the spiral case, the fan blade, first support, the second support, including a motor, an end cap, a controller, and a cover plate, first damping portion, second damping portion and third damping portion, wherein, the fan blade setting is in the induced air intracavity of spiral case, first support and second support are located the both sides in induced air chamber respectively, the motor includes main part and drive shaft, the main part is through first damping portion and first leg joint, the middle part of drive shaft is passed through second damping portion and wind blade drive and is connected, the one end of keeping away from the main part of drive shaft is passed through third damping portion and second leg joint. Adopt this scheme, through first damping portion and second damping portion, the vibration transmission of reducible fan blade and motor is to spiral case isotructure, can support the drive shaft through third damping portion, avoids the drive shaft unsettled to the vibration of drive shaft and fan has been reduced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of a fan provided by an embodiment of the present invention;

FIG. 2 shows a cross-sectional view of the blower of FIG. 1;

FIG. 3 shows an enlarged view of the blower of FIG. 2 at a third vibration reduction portion;

FIG. 4 shows an enlarged view of the blower of FIG. 2 at a first vibration dampening portion;

figure 5 shows an assembly view of the fan blade and motor of figure 1;

fig. 6 shows an enlarged view of fig. 5 at the second vibration damping portion;

fig. 7 shows an assembly view of the blower of fig. 1.

Wherein the figures include the following reference numerals:

11. a volute; 12. a first bracket; 13. a second bracket; 21. a fan blade; 22. rotating the volute tongue; 30. a motor; 31. a main body; 32. a drive shaft; 40. a first vibration damping portion; 50. a second vibration damping portion; 51. an outer casing; 52. an inner sleeve body; 53. an elastic sleeve; 54. a rotation stopping structure; 55. a limiting member; 60. a third vibration damping portion; 61. an elastic seat; 62. a bearing; 71. a first elastic pad; 72. a second elastic pad.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.

As shown in fig. 1 to 7, the embodiment of the utility model provides a fan, a serial communication port, including spiral case 11, first support 12, second support 13, fan blade 21, motor 30, first damping portion 40, second damping portion 50 and third damping portion 60, wherein, fan blade 21 sets up in spiral case 11's induced air intracavity, first support 12 and second support 13 are located the both sides in induced air chamber respectively, motor 30 includes main part 31 and drive shaft 32, main part 31 is connected through first damping portion 40 and first support 12, drive shaft 32's middle part is passed through second damping portion 50 and fan blade 21 drive connection, drive shaft 32's the one end of keeping away from main part 31 is passed through third damping portion 60 and second support 13 and is connected. Specifically, the first bracket 12 and the second bracket 13 are respectively located at two air induction ports of the scroll casing 11. The first, second, and third vibration mitigation portions 40, 50, and 60 each include an elastic structure to perform a damping function.

By adopting the scheme, through the first vibration damping part 40 and the second vibration damping part 50, the vibration of the fan blade 21 and the motor 30 can be reduced and transmitted to the volute 11 and other structures, the driving shaft 32 can be supported through the third vibration damping part 60, the driving shaft 32 is prevented from being suspended, the vibration of the driving shaft 32 and the fan is further reduced, and the noise is reduced.

Moreover, the two ends of the motor 30 are respectively supported by the third vibration damping part 60 and the first vibration damping part 40, the stress is balanced in the rotating process of the fan blade, the swing of the motor 30 is reduced, and the problem of noise caused by eccentricity in the rotating process of the motor 30 can be effectively solved. The motor is an important innovation point of the scheme, and the problem that the service life of the motor is influenced due to the fact that the existing unilateral supporting stress generates unbalance is avoided.

In the present embodiment, the second vibration mitigation part 50 includes: the outer sleeve 51 is arranged in the fan blade 21; an inner sleeve body 52 arranged in the outer sleeve body 51, and the driving shaft 32 penetrates through the inner sleeve body 52; and an elastic sleeve 53 disposed between the outer sleeve body 51 and the inner sleeve body 52. Wherein, the outer sleeve 51 is connected with the fan blade 21, and the inner sleeve 52 is connected with the driving shaft 32. The elastic sleeve 53 can play a role in buffering and damping vibration, and reduce the vibration of the fan blade 21 from being transmitted to the motor 30.

Optionally, the fan blade 21 is a centrifugal fan blade, and is formed by injection molding, the outer sleeve 51 and the inner sleeve 52 are made of metal, and the elastic sleeve 53 is made of rubber. The second vibration damping part 50 is connected with the fan blade 21 in an injection molding mode.

In the present embodiment, the inner sleeve 52 has a rotation stopping groove, and the second vibration damping portion 50 further includes: a rotation stop structure 54 is coupled to the drive shaft 32, the rotation stop structure 54 being disposed within the rotation stop slot to define a circumferential relative position of the drive shaft 32 and the inner housing body 52. This provides a secure connection between the inner jacket body 52 and the drive shaft 32 to achieve torque output. Alternatively, the radial cross section of the rotation stopping groove is polygonal, the shape of the rotation stopping structure 54 is matched with that of the rotation stopping groove, and the rotation stopping structure 54 is fixedly connected with the driving shaft 32.

In this embodiment, the outer casing 51 is provided with a groove on its outer circumferential surface, and a part of the structure of the fan blade 21 is injection molded in the groove. Therefore, the reliable connection between the outer sleeve 51 and the fan blade 21 can be realized, and the fan blade 21 and the outer sleeve 51 are prevented from being separated.

In the present embodiment, the second vibration mitigation part 50 further includes: the limiting piece 55 and the limiting piece 55 are clamped in the groove of the driving shaft 32, and the limiting piece 55 is abutted against the end face of the inner sleeve 52. The axial position limitation of the drive shaft 32 and the second vibration damping portion 50 can be achieved by a position limiting member 55.

Specifically, the first vibration attenuating portion 40 includes a plurality of elastic members detachably coupled to the first bracket 12, and the plurality of elastic members are coupled to different positions of the body 31, respectively. This avoids the rigid connection between the body 31 and the first bracket 12, and provides a damping effect by the elastic member.

Further, the main body 31 has a plurality of engaging grooves, and a plurality of elastic members and a plurality of engaging grooves are engaged in a one-to-one correspondence, and each elastic member is fixed to the first bracket 12 by a fastener. And the clamping mode is adopted, so that the assembly is convenient and the connection is reliable. Optionally, the main body 31 includes a body and a plurality of lugs spaced apart in a circumferential direction of the body, each lug having a snap groove into which the elastic member is snapped.

In the present embodiment, the third vibration reduction portion 60 includes an elastic seat 61 and a bearing 62 disposed in the elastic seat 61, the elastic seat 61 is disposed on the second bracket 13, and the driving shaft 32 is inserted in the bearing 62. The bearing 62 supports the end of the drive shaft 32, thereby preventing the end of the drive shaft 32 from being suspended and reducing vibration. Moreover, the bearing 62 is arranged in the elastic seat 61, and the vibration can be reduced through the elastic seat 61, so that the vibration transmission is reduced.

In this embodiment, the first bracket 12 and the second bracket 13 are both connected to the volute casing 11, and the blower further includes: a first elastic pad 71, the first elastic pad 71 being disposed between the first bracket 12 and the scroll casing 11; a second elastic pad 72, the second elastic pad 72 being disposed between the second bracket 13 and the scroll casing 11. By providing the first elastic pad 71 and the second elastic pad 72, the transmission of the vibration of the first bracket 12 and the second bracket 13 to the scroll casing 11 can be reduced, thereby further reducing the transmission of the vibration to other mating structures.

Another embodiment of the utility model provides an air conditioner, air conditioner includes foretell fan. By adopting the scheme, through the first vibration damping part 40 and the second vibration damping part 50, the vibration of the fan blade 21 and the motor 30 can be reduced and transmitted to the volute 11 and other structures, the driving shaft 32 can be supported through the third vibration damping part 60, the driving shaft 32 is prevented from being suspended, and therefore the vibration of the driving shaft 32 and the fan is further reduced. The scheme reduces the vibration and noise of the air conditioner.

Optionally, the blower further includes a rotary volute tongue 22, the volute includes an air inducing port, an upper air outlet, and a lower air outlet, the air inducing port, the upper air outlet, and the lower air outlet are all communicated with the air inducing cavity, the rotary volute tongue 22 is rotatably disposed in the air inducing cavity, the rotary volute tongue 22 has a first position for plugging the lower air outlet and avoiding the upper air outlet, and the rotary volute tongue 22 further has a second position for plugging the upper air outlet and avoiding the lower air outlet. Therefore, the upper air outlet or the lower air outlet of the air conditioner is realized by switching the position of the rotary volute tongue 22.

Optionally, the inner wall of the draft chamber has a guide groove, and the fan further comprises a guide structure provided on the rotating volute tongue 22, the guide structure being located within the guide groove to move along the guide groove. Therefore, the rotating volute tongue 22 can be guided by matching the guide structure and the guide groove, so that the rotating volute tongue 22 can move stably, the shaking is reduced, and the reliability is improved.

Optionally, the guide structure comprises: the first roller is rotatably arranged on the rotary volute tongue 22, the axis of the first roller is parallel to the rotation center line of the rotary volute tongue 22, and the first roller is abutted against the side wall of the guide groove; and the second roller is rotatably arranged on the rotary volute tongue 22, the axis of the second roller is vertical to the rotation center line of the rotary volute tongue 22, and the second roller is abutted against the bottom wall of the guide groove. The first idler wheel and the second idler wheel with different axes realize the limiting and guiding of the rotating volute tongue 22 in different directions, so that the rotating volute tongue 22 can move stably. The first roller and the second roller are adopted, so that the direct contact between the rotating volute tongue 22 and the inner wall of the induced draft cavity is avoided, the friction resistance is reduced, and the movement is smooth.

Optionally, the rotating volute tongue 22 comprises: the arc-shaped plate is used for plugging the upper air outlet or the lower air outlet, and a gap is formed between the arc-shaped plate and the inner wall of the induced air cavity; the arc-shaped blocking rib is arranged on the arc-shaped plate, and one part of the arc-shaped blocking rib is positioned in the guide groove. A gap is arranged between the arc-shaped plate and the inner wall of the induced draft cavity, so that the rotating volute tongue 22 can rotate conveniently, and the clamping is avoided. The arc-shaped blocking ribs extending into the guide grooves can block the gaps, air leakage at the gaps is avoided, and sealing performance and air quantity of the fan are improved. Optionally, a gap is formed between the arc-shaped blocking rib and the inner wall of the induced draft cavity, so that friction force generated by contact between the arc-shaped blocking rib and the inner wall of the induced draft cavity is avoided. Moreover, the arc-shaped blocking rib is provided with an avoiding groove for avoiding the guide structure. The avoiding groove can avoid the interference of the guide structure and the arc-shaped blocking rib, so that the arrangement of the guide structure is convenient.

Optionally, the air conditioner further comprises a housing and a heat exchanger, the fan and the heat exchanger are both arranged in the housing, and the housing is provided with an upper air inlet and a lower air inlet. An upper air duct and a lower air duct are arranged between the volute casing and the shell, two ends of the upper air duct are respectively communicated with the upper air port and the induced draft port, and the lower air duct is respectively communicated with the lower air port and the induced draft port. The air conditioner further includes: the upper wind shielding mechanism is arranged in the cavity of the shell, and at least one part of the upper wind shielding mechanism is movably arranged to open or close the upper wind channel; and the lower wind shielding mechanism is arranged in the cavity of the shell, and at least one part of the lower wind shielding mechanism is movably arranged to open or close the lower wind channel.

By adopting the scheme, when the air conditioner is blown out from the upper air outlet (namely the fan is in the air outlet state of the upper air outlet, the air enters the upper air outlet from the upper air outlet and is blown out), the upper air duct is closed through the upper wind shielding mechanism, so that the air is only blown in from the lower air duct, the influence on the air outlet caused by the air entering from the upper air duct is avoided, when the air conditioner is blown out from the lower air outlet (namely the fan is in the air outlet state of the lower air outlet, the air enters the lower air outlet from the lower air outlet and is blown out), the lower air duct is closed through the lower wind shielding mechanism, so that the air is only blown in from the upper air duct, and the influence on the air outlet caused by the air entering from the lower air duct is avoided. Therefore, the air output of the air conditioner can be improved, and the heat exchange efficiency is improved.

Optionally, the upper wind blocking mechanism comprises: the upper baffle plate is rotatably arranged in the upper air duct so as to open or close the upper air duct; the upper driving part is in driving connection with the upper baffle to drive the upper baffle to rotate. The rotation of the upper baffle is realized through the upper driving part, so that the upper air duct is opened or closed through the upper baffle. The scheme has simple structure and is convenient to control.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A fan is characterized by comprising a volute (11), a first bracket (12), a second bracket (13), fan blades (21), a motor (30), a first vibration reduction part (40), a second vibration reduction part (50) and a third vibration reduction part (60), wherein the fan blade (21) is arranged in an induced draft cavity of the volute (11), the first bracket (12) and the second bracket (13) are respectively positioned at two sides of the induced air cavity, the motor (30) comprises a main body (31) and a drive shaft (32), the main body (31) is connected to the first bracket (12) through the first vibration damping portion (40), the middle part of the driving shaft (32) is in driving connection with the fan blade (21) through the second vibration reduction part (50), one end of the driving shaft (32) far away from the main body (31) is connected with the second bracket (13) through the third vibration reduction part (60).

2. The fan according to claim 1, wherein the second vibration attenuation portion (50) includes:

the outer sleeve body (51) is arranged in the fan blade (21);

an inner sleeve (52) disposed inside the outer sleeve (51), the drive shaft (32) passing through the inner sleeve (52);

and the elastic sleeve (53) is arranged between the outer sleeve body (51) and the inner sleeve body (52).

3. The fan as claimed in claim 2, wherein the inner case (52) has a rotation stopping groove, and the second vibration attenuating portion (50) further comprises:

a rotation stop structure (54) connected with the driving shaft (32), wherein the rotation stop structure (54) is arranged in the rotation stop groove to limit the circumferential relative position of the driving shaft (32) and the inner sleeve body (52).

4. The fan according to claim 2, wherein the outer casing (51) is provided with a groove on the outer peripheral surface, and a part of the structure of the fan blade (21) is injection molded in the groove.

5. The fan of claim 2, wherein the second vibration dampening portion (50) further comprises:

the limiting piece (55), the limiting piece (55) joint is in the recess of drive shaft (32), limiting piece (55) with the terminal surface butt of the inner sleeve body (52).

6. The fan according to claim 1, wherein the first vibration attenuating portion (40) includes a plurality of elastic members detachably coupled to the first bracket (12), and the plurality of elastic members are coupled to different positions of the main body (31), respectively.

7. The blower according to claim 6, wherein the main body (31) has a plurality of engaging grooves, and a plurality of the elastic members and a plurality of the engaging grooves are engaged in a one-to-one correspondence, and each of the elastic members is fixed to the first bracket (12) by a fastening member.

8. The fan according to claim 1, wherein the third vibration reduction portion (60) comprises an elastic seat (61) and a bearing (62) disposed in the elastic seat (61), the elastic seat (61) is disposed on the second bracket (13), and the driving shaft (32) is inserted in the bearing (62).

9. The fan according to any of the claims from 1 to 8, characterised in that the first bracket (12) and the second bracket (13) are both connected to the volute (11), the fan further comprising:

a first elastic pad (71), the first elastic pad (71) being disposed between the first bracket (12) and the scroll (11);

a second elastic pad (72), the second elastic pad (72) being disposed between the second bracket (13) and the volute (11).

10. An air conditioner characterized in that it comprises a fan as claimed in any one of claims 1 to 9.

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