CN215175859U

CN215175859U - Vibration damping assembly and air conditioner

Info

Publication number: CN215175859U
Application number: CN202121454355.XU
Authority: CN
Inventors: 朱华; 黄招彬
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-14
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a vibration damping assembly and an air conditioner, wherein the vibration damping assembly comprises a first base, a second base and an elastic connecting assembly; the elastic connection assembly includes: one end of the stud is connected to the first base and is provided with an external thread; the fastening assembly comprises a connecting piece, the connecting piece is provided with a screw hole sleeved on the stud, and an internal thread screwed with the external thread is arranged in the screw hole; the limiting sleeve is sleeved on the stud, and two ends of the limiting sleeve are respectively abutted against the first base and the fastening assembly; the elastic piece is provided with a through hole sleeved on the limiting sleeve and clamped between the connecting piece and the first base; wherein the resilient member is in a compressed state. The utility model provides a technical scheme aims at solving the technical problem of its rigidity uncontrollable when installing current rubber damping pad.

Description

Vibration damping assembly and air conditioner

Technical Field

The utility model relates to an electrical equipment field, concretely relates to damping subassembly and air conditioner.

Background

The fan assembly of the existing air conditioner comprises a mounting bracket, a motor, fan blades and a rubber vibration damping pad. The fan blades are mounted on the motor. The support is provided with a mounting column. The rubber shock absorption pad is sleeved on the mounting column. The mounting foot of motor is fixed on rubber vibration damping pad. The mounting column is screwed with a nut to fix the rubber shock pad. The motor and the mounting bracket are damped through a rubber damping pad.

However, after the fan assembly is assembled, the damping effect of the rubber damping pad is not good, and the coaxiality of the motor cannot be guaranteed, so that the motor is greatly jumped in the rotating process, and after the air conditioner is used for a period of time, the fan assembly is also greatly noisy in the using process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a damping subassembly aims at solving the technical problem that its rigidity uncontrollable leads to the damping inefficiency of rubber damping pad when installing current rubber damping pad.

In order to solve the technical problem, the utility model provides a damping subassembly, it includes: the device comprises a first base, a second base and an elastic connecting component;

the elastic connection assembly includes:

one end of the stud is connected to the first base and is provided with an external thread;

the fastening assembly comprises a connecting piece, the connecting piece is provided with a screw hole sleeved on the stud, and an internal thread screwed with the external thread is arranged in the screw hole;

the limiting sleeve is sleeved on the stud, and two ends of the limiting sleeve are respectively abutted against the first base and the fastening assembly;

the elastic piece is provided with a through hole sleeved on the limiting sleeve, clamped between the connecting piece and the first base and connected to the second base;

wherein the resilient member is in a compressed state.

Preferably, the limiting sleeve comprises a cylinder body sleeved on the stud and a retaining ring extending outwards from the cylinder body in the radial direction;

the retainer ring is sandwiched between the first base and the elastic member.

Preferably, the fastening assembly further comprises a gasket, and the gasket is sleeved on the stud;

one face of the gasket abuts against the elastic piece and the limiting sleeve, and the other face of the gasket abuts against the connecting piece.

Preferably, the end of the through hole facing the connector is flared.

Preferably, the compression amount of the elastic member is 5% to 10% of the length of the elastic member when the elastic member is not compressed in the axial direction of the through hole.

Preferably, the second base comprises a connecting part, and a limiting bulge is arranged on the connecting part;

the elastic piece comprises a supporting part, a first limiting part and a second limiting part, wherein the first limiting part and the second limiting part are arranged on the side wall of the supporting part and are respectively positioned at the two ends of the supporting part;

the through hole penetrates through the supporting part, and the limiting bulge is clamped between the first limiting part and the second limiting part.

Preferably, the connecting portion is provided with a mounting groove for accommodating the elastic member, and the limiting protrusion is disposed on an inner wall of the mounting groove.

Preferably, the first limiting part, the second limiting part and the supporting part enclose a strip-shaped limiting groove, and the limiting groove extends along the circumferential direction of the supporting part;

the limiting groove comprises a first groove section and a second groove section which are respectively positioned at two sides of the supporting part, which deviate from each other and are parallel to each other;

the limiting bulge comprises a first protruding section and a second protruding section which are respectively arranged on two side walls of the mounting groove and are parallel to each other;

the first protruding section and the second protruding section extend from the opening of the mounting groove to the bottom of the mounting groove and respectively extend into the first groove section and the second groove section.

Preferably, the limiting groove further comprises a third groove section, and two ends of the third groove section are respectively connected to the ends, close to each other, of the first groove section and the second groove section;

spacing arch is including setting up the tank bottom of mounting groove just stretches into third protruding section in the third groove end, the both ends of third protruding section connect respectively in first protruding section with the protruding section of second one end inwards.

Preferably, the bottom surface of the first groove section is inwards recessed to form a first anti-falling groove;

the top end of the first protruding section is provided with a first anti-falling boss extending into the first anti-falling groove.

Preferably, first base is the annular, elasticity coupling assembling is provided with the multiunit, the multiunit elasticity coupling assembling follows the circumference of first base is interval distribution evenly.

The utility model also provides an air conditioner, it includes as above damping assembly, the second base is motor housing.

The utility model discloses among the technical scheme, when assembling this damping subassembly, even if adopt wind to criticize and screw up the connecting piece, the stop collar is the connecting piece locking when fastening assembly supports with the stop collar for the rigidity of elastic component stops at the design value and can not continue the increase. Meanwhile, the connecting piece and the fastening assembly are rigid pieces and are in rigid contact with each other, so that the connecting piece is difficult to loosen after the connecting piece is pre-tightened.

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 perspective view of a vibration damping assembly according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating disassembly of a damping assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of a connection relationship between a first base and a stud according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a stop collar in an embodiment of the present invention;

fig. 5 is a schematic perspective view of a second base according to an embodiment of the present invention;

fig. 6 is a partially enlarged schematic view of a second base according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of an elastic member according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of an elastic member according to an embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of an elastic connection assembly in an example of the present invention, with the connection member in an untwisted state;

fig. 10 is a schematic sectional view of the elastic connection assembly in a tightened state of the connection member according to the embodiment of the present invention.

The reference numbers illustrate:

100. a vibration reduction assembly; 1. a first base; 2. an elastic connection assembly; 3. a stud; 31. a first straight column section; 32. a second straight column section; 321. an external thread; 4. a second base; 41. a main body portion; 42. a connecting portion; 421. mounting grooves; 422. a limiting bulge; 423. a first protruding section; 424. a second protruding section; 425. a third convex section; 426. a first anti-drop boss; 427. a second anti-drop boss; 5. an elastic member; 51. a support portion; 511. a through hole; 512. flaring; 513. a first end; 514. a second end; 52. a first limiting part; 521. a first limiting surface; 53. a second limiting part; 531. a second limiting surface; 54. a limiting groove; 541. a first groove section; 542. a second groove section; 543. a third groove section; 544. a first drop-preventing groove; 545. a second anticreep groove; 6. a fastening assembly; 60. a connecting member; 61. a screw hole; 62. an internal thread; 63. A gasket; 8. a limiting sleeve; 81. a barrel; 82. and a retainer ring.

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 all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention 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 indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

The analysis research finds that: the rigidity of the rubber damping pad is positively correlated with the natural frequency of the rubber damping pad, and the higher the rigidity of the rubber damping pad is, the higher the natural frequency of the rubber damping pad is (the natural frequency of the rubber damping pad is)

f₀: natural frequency, c: rigidity, m: mass). The natural frequency of the rubber damping pad and the damping efficiency of the rubber damping pad are in a negative correlation, and the higher the natural frequency of the rubber damping pad is, the lower the damping efficiency of the rubber damping pad is (damping efficiency: η ═ f/f)₀And is and

the vibration reduction effect is achieved; f: excitation frequency, f₀: a natural frequency; ). Therefore, the rigidity of the rubber damper pad cannot be excessively high.

However, since the mounting bracket and the rubber vibration damping pad are connected by the bolt, the more the nut is tightened, the greater the compression amount of the rubber vibration damping pad, and the greater the compression amount of the rubber vibration damping pad, the greater the rigidity of the rubber vibration damping pad. In the industry, the nuts are fastened by adopting the pneumatic screwdriver, but the torque of the pneumatic screwdriver is not controllable, so that the compression amount of the rubber damping pad is too large, the rigidity of the rubber damping pad is increased, and the damping efficiency is low. Furthermore, the motor typically has a plurality of mounting feet, a plurality of mountingsThe foot is connected a plurality of rubber damping pad respectively, and a plurality of rubber damping pad are respectively through a plurality of bolt fastening on a plurality of erection columns, and the pretightning force of every bolt is all inequality, can lead to the deformation volume uncontrollable of every installation foot of motor, and then leads to the assembly precision of motor poor, for example the axiality is low, beat greatly, can lead to the noise grow. Furthermore, elastic materials such as rubber have a pressure relaxation effect, and bolts for fastening the rubber damping pad are loosened after the air conditioner is used for a period of time, so that abnormal sound of the whole air conditioner is caused. The development trend of the existing air conditioner is to develop a low-rotating-speed fan assembly, the rotating speed of a motor of the low-rotating-speed fan assembly is low, blades of fan blades are large, and therefore the lower the rotating speed of the motor, the lower the excitation frequency of a stator (the excitation frequency f of the stator)_zkZn/60, Z-number of stator teeth, K-positive integer, n-speed) and rotor excitation frequency (rotor excitation frequency f)_zPn/60, P-rotor pole count, n-speed) decreases, which results in a more uncontrolled fan assembly noise.

Based on this, the present embodiment proposes a vibration damping assembly 100.

Referring to fig. 1 and 2, fig. 1 and 2 show a damping module 100 in the present embodiment. The damping assembly 100 includes a first base 1, a second base 4, and an elastic connection assembly 2. The elastic connection assembly 2 is used to elastically connect the first base 1 and the second base 4. The elastic connecting component 2 comprises a stud 3, an elastic piece 5, a limiting sleeve 8 and a fastening component 6.

The first base 1 may be configured as a flat plate structure, for example, a circular ring-shaped flat plate structure. The first base 1 may be made of a metal material, such as steel or an aluminum alloy.

As shown in fig. 3, the stud 3 is configured in a straight bar shape. The stud 3 comprises a first straight column section 31 and a second straight column section 32 connected to the first straight column section 31. The first straight column section 31 and the second straight column section 32 are both straight-bar-shaped. The first straight column section 31 and the second straight column section 32 are coaxially arranged. The first stud section 31 of the stud 3 is not provided with an external thread 321. The outer peripheral wall of the second straight section 32 of the stud 3 is provided with an external thread 321. The external thread 321 may be a rectangular thread, a triangular thread, or a trapezoidal thread. The first straight column section 31 may be configured to be cylindrical. The diameter of the first straight cylindrical section 31 is equal to the major diameter of the external thread 321 of the second straight cylindrical section 32. The major diameter of the external thread 321 is twice the distance from the tip of the thread of the external thread 321 to the axis of the external thread 321. The first straight column section 31 is connected to the first base 1, and in this embodiment, the end of the first straight column section 31 facing away from the end of the second straight column section 32 is connected to the first base 1. The stud 3 and the first base 1 may be of unitary construction. The stud 3 and the first base 1 may be connected by welding. The studs 3 are perpendicular to the first base 1.

As shown in fig. 4, 9 and 10, the stop collar 8 includes a cylinder 81 and a retainer ring 82. The cylinder 81 may be configured as a cylinder. The cylinder 81 is sleeved on the stud. The length of the cylinder 81 is greater than or equal to the length of the first straight section 31. The securing ring 82 can be configured as a circular flat plate. A retainer ring 82 projects radially outwardly from one end of the cylinder 81. The retainer ring 82 is disposed coaxially with the cylinder 81. The retainer ring 82 abuts against the first base 1 toward the plate surface of the first base 1.

As shown in fig. 5 and 6, the second base 4 includes a main body portion 41 and a connecting portion 42. The second base 4 may be a motor housing, the main body portion 41 may be a body of the motor housing, and the connection portion 42 may be a leg of the motor housing. The body portion 41 may be configured as a columnar structure, such as a substantially cylindrical structure. The connecting portion 42 is provided on a side wall of the main body portion 41. The connecting portion 42 projects radially outward from the main body portion 41. The end of the connecting portion 42 facing away from the main body portion 41 is recessed inward to form a mounting groove 421. The cross-section of the mounting groove 421 may be a U-shaped cross-section. The mounting groove 421 penetrates the connecting portion 42 in the axial direction of the body portion 41. The inner wall of the mounting groove 421 is provided with a limiting protrusion 422.

As shown in fig. 7 and 8, the elastic member 5 may be made of an elastic material such as rubber or silicone. The elastic member 5 includes a support portion 51, a first stopper portion 52, and a second stopper portion 53. The support 51 includes a first end 513 and a second end 514. The first end 513 faces away from the second end 514. The end face of the first end 513 and the end face of the second end 514 may both be planar. The elastic member 5 is provided with a through hole 511, the through hole 511 extending from an end surface of the first end 513 to an end surface of the second end 514 of the elastic member 5. The through hole 511 is sleeved on the cylinder 81, and the elastic part 5 is abutted against the plate surface of the baffle plate deviating from the first substrate. The length of the through hole 511 is greater than that of the cylinder 81 when the elastic member 5 is not compressed. The first stopper portion 52 is provided on a side wall of the first end 513 of the support portion 51. The second stopper portion 53 is provided on a sidewall of the second end 514 of the support portion 51. The surface of the first position-limiting portion 52 facing away from the second position-limiting portion 53 is flush with the end surface of the first end 513, and the surface of the second position-limiting portion 53 facing away from the first position-limiting portion 52 is flush with the end surface of the first end 513. The first position-limiting portion 52 includes a first position-limiting surface 521, and the first position-limiting surface 521 faces the second position-limiting portion 53. The second position-limiting portion 53 includes a second position-limiting surface 531, and the second position-limiting surface 531 faces the first position-limiting portion 52. The first stopper surface 521 and the second stopper surface 531 are parallel to each other, and may be parallel to the end surface of the first end 513. The first stopper portion 52, the second stopper portion 53 and the support portion 51 enclose the stopper groove 54. The surface of the first and second position-limiting

portions

52 and 53 adjacent to each other is a side surface of the position-limiting groove 54, and the surface of the support portion 51 is a bottom surface of the position-limiting groove 54. The width of the stopper projection 422 of the connecting portion 42 on the axis of the main body portion 41 is smaller than or equal to the width between the first stopper portion 52 and the second stopper portion 53.

As shown in fig. 1, 2, 9, and 10, the fastening assembly 6 includes a connector 60 and a spacer 63. The connecting member 60 is provided with a screw hole 61. The screw hole 61 may be a through connection 60. The screw hole 61 is sleeved on the stud 31. The screw hole 61 is provided with an internal thread 62, and the internal thread 62 is screwed with the external thread 321 of the stud 3. The coupling 60 may be a nut, for example, a hex nut.

The spacer 63 may be constructed in a ring-shaped flat plate structure, and the spacer 63 may be a ring-shaped flat plate. The outer diameter of the washer 63 is larger than the outer diameter of the connecting member 60. The inner diameter of the washer 63 is smaller than the outer diameter of the connecting member 60. The washer 63 is sleeved on the stud 3 and clamped between the connecting member 60 and the elastic member 5. The gasket 63 is arranged between the connecting piece 60 and the elastic piece 5, so that the direct contact between the connecting piece 60 and the elastic piece 5 can be avoided, the connecting piece 60 rotating when the connecting piece 60 is screwed and the elastic piece 5 rub against each other to damage the elastic piece 5, meanwhile, the acting area between the gasket 63 and the elastic piece 5 is larger, the gasket 63 can more uniformly transmit thrust to the surface of the elastic piece 5, and the pressure between the gasket 63 and the elastic piece 5 is small.

During assembly, as shown in fig. 1, 6 and 9, the elastic element 5 is placed in the mounting groove 421 of the connecting portion 42, the limiting protrusion 422 of the connecting portion 42 is located between the first limiting surface 521 of the first limiting portion 52 and the second limiting surface 531 of the second limiting portion 53 of the elastic element 5, that is, the limiting protrusion 422 is accommodated in the limiting groove 54; then the cylinder 81 of the stop collar 8 is inserted into the through hole 511 of the elastic element 5; then, the stud 3 is arranged in the cylinder 81 of the limiting sleeve 8 in a penetrating manner, and the first base 1 is abutted against one end of the cylinder 81; then sleeving the gasket 63 on the stud 3; finally, as shown in fig. 10, the connecting member 60 is sleeved on the second straight column section 31 and the connecting member 60 is screwed until the gasket 63 abuts against the cylinder 81 of the stop collar 8. When the gasket 63 abuts against the cylinder 81 of the limiting sleeve 8, the limiting sleeve 8 limits the gasket 63 so that the connecting piece 60 cannot be screwed continuously.

The elastic piece 5 is fastened on the first base 1 by the fastening assembly 6, the limiting sleeve 8 and the stud 3, and the elastic piece 5 is connected to the second base 4, so that the elastic piece 5 elastically connects the first base 1 and the second base 4, and the elastic piece 5 can attenuate vibration of the second base 4 to play a role in vibration reduction. During the process of screwing the connecting element 60, the elastic element 5 is gradually compressed, the end surface of the first end 513 and the end surface of the second end 514 of the elastic element 5 gradually approach each other, the force of the first limiting part 52 and the second limiting part 53 of the elastic element 5 for clamping the limiting protrusion 422 of the connecting part 42 is gradually increased, the rigidity of the elastic element 5 is gradually increased, when the gasket 63 abuts against the cylinder 81 of the limiting sleeve 8, the connecting element 60 cannot be screwed further, at this time, the rigidity of the elastic element 5 reaches the designed value, and the vibration damping effect is prominent. In this way, even if the wind screwdriver is used to tighten the connection element 60, the stop collar 8 stops the spacer 63 and the connection element 60 when the spacer 63 abuts against the cylindrical body 81 of the stop collar 8, so that the stiffness of the elastic element 5 stays at the design value without increasing further. Meanwhile, the connecting piece 60 and the fastening component 6 are rigid pieces and are in rigid contact with each other, so that the connecting piece 60 is difficult to loosen after the connecting piece 60 is pre-tightened.

In an exemplary embodiment, the end of the through hole 511 of the elastic member 5 facing the connecting member 60 is a flared end 512, and the flared end 512 may be formed by chamfering the end of the through hole 511 facing the connecting member 60.

If the end of the through hole 511 of the elastic element 5 facing the connecting element 60 is not provided with the flaring 512, a part of the elastic element 5 is squeezed between the stop collar 8 and the gasket 63 when the elastic element 5 is compressed, and when the stop collar 8 and the gasket 63 approach each other, a shearing force is applied to the part so that the elastic element 5 is stress-concentrated and even breaks the elastic element 5, thereby shortening the service life of the elastic element 5. And one end of the through hole 511 facing the connecting piece 60 is provided with a flaring 512, so that the elastic piece 5 cannot be squeezed between the limiting sleeve 8 and the gasket 63 to be damaged, and the service life of the elastic piece 5 is longer.

In an exemplary embodiment, the stopper groove 54 has a bar shape, and the stopper groove 54 extends in the circumferential direction of the support portion 51. The limiting groove 54 includes a first groove section 541, a second groove section 542, and a third groove section 543. Both the first and

second channel sections

541, 542 are straight channels. The first and

second groove sections

541, 542 are parallel to each other and are respectively disposed at two sides of the supporting portion 51 facing away from each other. The opening directions of the first and

second groove sections

541, 542 are away from each other. The third groove segment 543 may be an arc-shaped groove, preferably an arc-shaped groove. The third groove segment 543 is arched outwardly. Both ends of the third groove segment 543 are respectively connected to the ends of the first groove segment 541 and the second groove segment 542 which are close to each other. The retaining groove 54 may be configured as a U-shaped groove.

The limiting protrusion 422 is a strip-shaped protrusion. The stopper protrusion 422 includes a first protrusion section 423, a second protrusion section 424, and a third protrusion section 425. The first and second projecting

sections

423 and 424 are each in the shape of a straight bar. The first and second projecting

sections

423 and 424 are parallel to each other. The first and second protruding

sections

423 and 424 are respectively provided on both side surfaces of the mounting groove 421. The third protruding section 425 is disposed on the bottom surface of the mounting groove 421. Third convex segment 425 may extend along an arc. The third convex section 425 preferably extends along a circular arc. Opposite ends of the third protruding section 425 are connected to the inward ends of the first protruding section 423 and the second protruding section 424, respectively.

The distance between the top surface of the first projecting section 423 and the top surface of the second projecting section 424 is equal to the distance between the groove bottom of the first groove section 541 and the groove bottom of the second groove section 542. The first projection section 423 is equal in length to the first groove section 541. Second projecting segment 424 is identical to second groove segment 542. The third protruding section 425 and the third groove section 543 have the same length. The first projecting section 423 projects into the first groove section 541, the second projecting section 424 projects into the second groove section 542, and the third projecting section 425 projects into the third groove section 543.

In this way, the first and second position-limiting

parts

52 and 53 clamp the position-limiting protrusion 422 from three sides of the support part 51, so that the connection between the elastic member 5 and the second base 4 is more stable. Meanwhile, when the elastic element 5 and the second base 4 are assembled with each other, only the third groove segment 543 of the elastic element 5 is required to face the third protruding segment 425, the first groove segment 541 is aligned with the first protruding segment 423, the second groove segment 542 is aligned with the second protruding segment 424, and then the elastic element 5 is inserted into the mounting groove 421, so that the assembly of the elastic element 5 and the second base 4 is completed, and the assembly between the elastic element 5 and the second base 4 is simple and convenient.

In an exemplary embodiment, two sides of the supporting portion 51 facing away from each other are provided with a first anti-slip groove 544 and a second anti-slip groove 545, respectively. The first escape prevention groove 544 may be formed by a bottom surface of the first groove section 541 being depressed inward. The first anti-drop groove 544 can be located at an end of the first groove section 541 facing away from the third groove section 543. The second escape prevention groove 545 may be formed by inwardly recessing the bottom surface of the second groove section 542. The second anti-drop groove 545 may be located at an end of the second groove segment 542 facing away from the third groove segment 543.

The limiting protrusion 422 is provided with a first anti-falling boss 426 and a second anti-falling boss 427. The first escape prevention protrusion 426 is provided at the top end of the first projection section 423. The first anti-slip boss 426 may be located at an outward end of the first projection 423. A second escape prevention boss 427 is provided at the tip of the second projection section 424. The second anti-slip boss 427 may be located at an outward end of the second protruding section 424. The first retaining projection 426 and the second retaining projection 427 extend toward each other. The first escape prevention protrusion 426 is inserted into the first escape prevention groove 544, and the second escape prevention protrusion 427 is inserted into the second escape prevention groove 545.

After the elastic member 5 is inserted into the mounting groove 421, the first falling-off preventing projection 426 is inserted into the first falling-off preventing groove 544, the second falling-off preventing projection 427 is inserted into the second falling-off preventing groove 545, and the elastic member 5 is difficult to slip out of the mounting groove 421.

In an exemplary embodiment, the resilient connecting members 2 are provided in a plurality of groups, for example four groups. The connecting portion 42 is provided in plural, for example, four. The number of the elastic connection assemblies 2 is the same as the number of the connection portions 42. The elastic connecting components 2 are arranged in one-to-one correspondence with the connecting parts 42. The elastic connection assembly 2 connects its corresponding connection portion 42 with the first base 1. Adopt multiunit elasticity coupling assembling 2 to couple together first base 1 and second base 4, connect more firmly.

In an exemplary embodiment, the first base 1 has a circular ring shape. The inner diameter of the first base 1 is larger than the outer diameter of the body portion 41 of the second base 4. The first base 1 is fitted over the body portion 41 of the second base 4, and is disposed coaxially with the body portion 41 of the second base 4. The studs 3 of the elastic connection assemblies 2 are arranged on the same plate surface of the first base 1 and are uniformly distributed at intervals along the circumferential direction of the first base 1. The plurality of connecting portions 42 are evenly spaced in the circumferential direction of the main body portion 41. The openings of the mounting grooves 421 of the connecting portion 42 face the side away from the main body portion 41. After the arrangement, the first base 1 and the second base 4 are stressed more reasonably, and the connection between the two is firmer.

In an exemplary embodiment, after the connecting member 60 is tightened, the elastic member 5 is compressed in the axial direction of the through hole 511 by N times the length of the elastic member 5 in the axial direction when it is not compressed, where N is in a range of five percent or more and ten percent or less. In this embodiment, the amount of compression is N times the distance between the end face of the first end 513 to the end face of the second end 514.

The elastic member 5 is compressed in a range of five to ten percent of its length dimension, and the elastic member 5 has high vibration damping efficiency.

The embodiment also provides an air conditioner. The air conditioner includes a fan assembly. The fan assembly includes the vibration damping assembly 100 described above. The first base 1 of the vibration damping assembly 100 is a mounting bracket of a motor, and the second base 4 of the vibration damping assembly 100 is a motor housing. The motor shell is arranged on the mounting bracket through the elastic connecting assembly 2. It will be appreciated that the second base 4 may also be a mounting base for a motor, the motor housing being directly connected to the second base 4.

The fan assembly further includes an impeller mounted on the main shaft of the motor. When the motor drives the impeller to rotate, vibration is generated, and the vibration is damped by the elastic member 5 of the vibration damping assembly 100 in the process of being transmitted to the first base 1 through the vibration damping assembly 100. Other advantages of the vibration damping module 100 include that the fan module having the vibration damping effect and the air conditioner including the fan module also have the same.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A vibration dampening assembly, comprising: the device comprises a first base, a second base and an elastic connecting component;

the elastic connection assembly includes:

wherein the resilient member is in a compressed state.

2. The vibration damping assembly of claim 1 wherein said stop collar comprises a barrel disposed over said stud and a retainer ring extending radially outwardly from said barrel;

the retainer ring is sandwiched between the first base and the elastic member.

3. The vibration attenuation assembly of claim 1, wherein the fastening assembly further comprises a washer, the washer being fitted over the stud;

4. The vibration damping assembly according to claim 3, wherein an end of the through hole facing the connecting member is flared.

5. The vibration damping assembly according to claim 1, wherein the elastic member is compressed by 5% to 10% of a length of the elastic member when the elastic member is not compressed in the axial direction of the through hole.

6. The vibration damping assembly according to any one of claims 1 to 5, wherein the second base includes a connecting portion on which a limit protrusion is provided;

7. The vibration damping assembly according to claim 6, wherein the connecting portion is provided with a mounting groove for receiving the elastic member, and the stopper protrusion is provided on an inner wall of the mounting groove.

8. The vibration damping assembly according to claim 7, wherein the first limiting portion, the second limiting portion and the support portion enclose a strip-shaped limiting groove, and the limiting groove extends along the circumferential direction of the support portion;

9. The vibration damping assembly according to claim 8, wherein the limiting groove further comprises a third groove section, and two ends of the third groove section are respectively connected to the ends, close to each other, of the first groove section and the second groove section;

spacing arch is including setting up the tank bottom of mounting groove just stretches into third protruding section in the third groove section, the both ends of third protruding section connect respectively in first protruding section with the protruding section of second one end inwards.

10. The vibration damping assembly of claim 8 wherein a bottom surface of the first groove segment is recessed inwardly to form a first anti-drop groove;

11. The vibration damping assembly according to any one of claims 1 to 4, wherein the first base is annular, and the elastic connection assemblies are provided in a plurality of groups which are evenly spaced along a circumferential direction of the first base.

12. An air conditioner, characterized in that, comprising the vibration damping assembly of any one of claims 1 to 11, the second base is a motor housing or a mounting base of a motor.