CN115540315A

CN115540315A - Damping assembly and air conditioner

Info

Publication number: CN115540315A
Application number: CN202110727403.6A
Authority: CN
Inventors: 朱华; 蔡序杰; 李松
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: 2022-12-30

Abstract

The invention 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: the stud comprises a first stud section, and one end of the stud is connected to the first base; the outer peripheral wall of the second straight column section is fully distributed with external threads, is coaxially arranged with the first straight column section and is positioned on one side of the first straight column section, which is far away from the first base; 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; and the elastic element is provided with a through hole sleeved on the stud, is connected to the second base and is clamped between the connecting element and the first base. The technical scheme provided by the invention aims to solve the technical problem that the rigidity of the existing rubber damping pad cannot be controlled when the existing rubber damping pad is installed.

Description

Vibration damping assembly and air conditioner

Technical Field

The invention relates to the field of electrical equipment, in particular to a vibration reduction assembly and an 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.

Disclosure of Invention

The invention mainly aims to provide a vibration damping assembly, and aims to solve the technical problem that the vibration damping efficiency of a rubber vibration damping pad is low because the rigidity of the conventional rubber vibration damping pad cannot be controlled when the conventional rubber vibration damping pad is installed.

In order to solve the above technical problem, the present invention provides a vibration damping module, which includes: the device comprises a first base, a second base and an elastic connecting component;

the elastic connection assembly includes:

a stud comprising

A first pillar section, one end of which is connected to the first base;

the outer peripheral wall of the second straight column section is fully distributed with external threads, is coaxially arranged with the first straight column section and is positioned on one side of the first straight column section, which is far away from the first base;

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; and

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

the diameter of the first straight column section is larger than the small diameter of the internal thread, and the elastic piece is in a compressed state when the internal thread abuts against the end part of the first straight column section facing the second straight column section.

Preferably, the stud further comprises a third straight column section arranged between the first straight column section and the second straight column section, and two ends of the third straight column section are respectively connected to the ends of the first straight column section and the second straight column section;

the diameter of the third straight column section is smaller than that of the first straight column section and smaller than the major diameter of the external thread.

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 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 arranged on the 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 one 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 relative 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 sunken 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, elastic connection assembly is provided with the multiunit, the multiunit elastic connection assembly follows the circumference of first base is interval distribution uniformly.

The invention also provides an air conditioner which comprises the vibration reduction assembly, wherein the second base is a motor shell.

In the technical scheme of the invention, when the vibration damping assembly is assembled, even if the connecting piece is screwed by adopting a pneumatic screwdriver, the end part of the first straight column section is used as the stop of the connecting piece when the internal thread of the connecting piece is abutted against the end part of the first straight column section, so that the rigidity of the elastic piece is kept at a designed value and cannot be increased continuously. Meanwhile, the internal thread of the connecting piece and the first straight column section are rigid pieces, and the internal thread of the connecting piece and the first straight column section are in rigid contact, 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 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 perspective view of a damping assembly in an embodiment of the present invention;

FIG. 2 is a disassembled schematic view of a damping assembly in an embodiment of the present invention;

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

FIG. 4 is a perspective view of a second base according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of a second base according to an embodiment of the present invention;

FIG. 6 is a perspective view of an embodiment of the elastic member of the present invention;

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

FIG. 8 is a cross-sectional view of the resilient connecting member of an embodiment of the present invention with the connecting member unthreaded;

fig. 9 is a schematic cross-sectional view of a resilient connection assembly with a tightened connection according to an embodiment of the 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; 33. a third straight column section; 34. an adjustment groove; 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-falling 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 connecting member; 61. a screw hole; 62. an internal thread; 7. and (7) a gasket.

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention 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, such a combination of technical solutions should not be considered to exist, 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)

f ₀ : 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 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: eta = f/f) ₀ And is made of

The vibration reduction effect is achieved; f: excitation frequency, f ₀ : a natural frequency; ). Therefore, the rigidity of the rubber damper pad cannot be excessively high.

However, since the mounting bracket and the rubber damping pad are connected by the bolt, the more the nut is tightened, the greater the compression amount of the rubber damping pad is, and the greater the compression amount of the rubber damping pad is, the greater the rigidity of the rubber damping pad is. In the industry, the nuts are fastened by adopting the air screwdriver, but the torque of the air screwdriver is uncontrollable, 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. Moreover, the motor usually has a plurality of installation feet, and a plurality of rubber damping pad are connected respectively to a plurality of installation feet, and a plurality of rubber damping pad are fixed on a plurality of erection columns through a plurality of bolts respectively, and the pretightning force of every bolt is all inequality, can lead to the deformation volume of every installation foot of motor uncontrollable, 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. Development trend of existing air conditionerTo develop a low speed fan assembly, the motor speed of the low speed fan assembly is low and the blades of the fan blades are large, such that the lower the speed of the motor, the lower the stator excitation frequency (stator excitation frequency f) _z K = KZn/60, Z-number of stator teeth, K-positive integer, n-rotation speed) and rotor excitation frequency (rotor excitation frequency f) _z Pn/60, p-rotor pole count, n-speed) is reduced, resulting 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 vibration damping assembly 100 includes a first base 1, a second base 4, and a resilient connecting assembly 2. The elastic connection assembly 2 is used to elastically connect the first base 1 and the second base 4. The elastic connection assembly 2 comprises a stud 3, an elastic member 5 and a connecting member 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. The first straight column section 31 is straight and the second straight column section 32 is also straight. The first straight column section 31 and the second straight column section 32 may be coaxially arranged. The first straight section 31 is not provided with an external thread. The second straight section 32 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 section 31 may be cylindrically configured. 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 and 5, 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. 6 and 7, the elastic member 5 may be made of an elastic material such as rubber or silicone. The elastic element 5 includes a first position-limiting portion 52, a second position-limiting portion 53 and a supporting portion 51.

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, and the through hole 511 extends from an end surface of the first end 513 to an end surface of the second end 514 of the elastic member 5. The distance between the end face of the first end 513 and the end face of the second end 514 is greater than the length of the first cylindrical section 31 of the stud 3, and the length of the through hole 511 is greater than the length of the first cylindrical section 31. 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 part 52 facing away from the second position-limiting part 53 is flush with the end surface of the first end 513, and the surface of the second position-limiting part 53 facing away from the first position-limiting part 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 limiting surface 521 and the second limiting surface 531 are parallel to each other, and may be parallel to the end surface of the first end 513. The supporting portion 51, the first stopper portion 52, and the second stopper portion 53 enclose the stopper groove 54. The surfaces of the first and second position-limiting

portions

52 and 53 adjacent to each other are the side surfaces of the position-limiting groove 54, and the surface of the support portion 51 is the bottom surface of the position-limiting groove 54. The width of the limit 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 limit portion 52 and the second limit portion 53.

As shown in fig. 8 and 9, the connecting member 6 is provided with a screw hole 61. The screw hole 61 may be a through connection 6. The screw hole 61 is provided with an internal thread 62, and the internal thread 62 and the external thread 321 of the stud 3 are mutually screwed. The internal thread 62 has a smaller diameter than the outer diameter of the first stud section 31 of the stud 3. The minor diameter of the internal thread 62 is twice the distance between the tip of the thread of the internal thread 62 and the axis of the internal thread 62. The connecting piece 6 may be a nut, for example a hexagonal nut.

During assembly, as shown in fig. 1, 5 and 8, 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 received in the limiting groove 54; then, the stud 3 is arranged in the through hole 511 of the elastic part 5 in a penetrating way, and the first base 1 is abutted against the elastic part 5; finally, as shown in fig. 9, the connecting element 6 is placed around the second straight column section 31 and the connecting element 6 is tightened until the internal thread 62 of the connecting element 6 abuts against the end of the first straight column section 31 facing the second straight column section 32, which limits the connecting element 6 so that the connecting element 6 cannot be screwed further. In this way, the elastic member 5 is sandwiched between the first base 1 and the connecting member 6, the elastic member 5 is fastened on the first base 1 by the connecting member 6 and the stud 3, and since the elastic member 5 is connected to the second base 4, the elastic member 5 elastically connects the first base 1 and the second base 4, and the elastic member 5 can attenuate the vibration of the second base 4, thereby playing a role of vibration reduction. During the process of screwing the connecting piece 6, the elastic piece 5 is gradually compressed, the end surface of the first end 513 and the end surface of the second end 514 of the elastic piece 5 gradually approach each other, the force of the first limiting part 52 and the second limiting part 53 of the elastic piece 5 clamping the limiting protrusion 422 of the connecting part 42 gradually increases, the rigidity of the elastic piece 5 gradually increases, when the internal thread 62 of the connecting piece 6 abuts against the end part of the first straight column section 31, the connecting piece 6 cannot be screwed further, at this time, the rigidity of the elastic piece 5 reaches the designed value, and the vibration damping effect is prominent. In this way, even if the wind-batch is used to tighten the connector 6, the end of the first right-pillar segment 31 stops the connector 6 when the internal thread 62 of the connector 6 abuts against the end of the first right-pillar segment 31, so that the stiffness of the elastic member 5 stays at the design value without further increasing. Meanwhile, the internal thread 62 of the connecting piece 6 and the first straight column section 31 are rigid pieces and are in rigid contact with each other, so that the connecting piece 6 is difficult to loosen after the connecting piece 6 is pre-tightened.

In an exemplary embodiment, as shown in fig. 3, the stud 3 further comprises a third straight column section 33. The first straight cylindrical section 31, the second straight cylindrical section 32 and the third straight cylindrical section 33 are coaxially arranged. The third straight column section 33 is arranged between the first straight column section 31 and the second straight column section 32, and two ends of the third straight column section 33 are respectively connected with one ends of the first straight column section 31 and the second straight column section 32, which are close to each other. The diameter of the third straight cylindrical section 33 is smaller than the diameter of the first straight cylindrical section 31 and smaller than the major diameter of the external thread 62 of the second straight cylindrical section 32.

Since the diameter of the third straight column section 33 is smaller than the diameter of the first straight column section 31 and smaller than the major diameter of the external thread 62 of the second straight column section 32, an adjustment groove 34 is formed on the outer side of the third straight column section 33, and the adjustment groove 34 is an annular groove. The adjustment groove 34 may be a relief groove formed in advance to facilitate tool withdrawal when the screw 3 is turned. The width of the adjustment groove 34 can be varied to control the stroke of the thread of the connecting member 6 when it is tightened, and thus the amount of compression of the resilient member 5.

In an exemplary embodiment, the end of the through hole 511 of the elastic member 5 facing the connecting member 6 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 6.

If the end of the through hole 511 of the elastic element 5 facing the connecting element 6 is not provided with the flaring 512, a part of the elastic element 5 is squeezed into the adjusting groove 34 when the elastic element 5 is compressed, and the end surface of the first straight column section 31 and the external thread 62 of the connecting element 6 exert shearing force on the part when approaching each other, so that the elastic element 5 concentrates stress and even breaks the elastic element 5, and the service life of the elastic element 5 is shortened. And the end of the through hole 511 facing the connecting piece 6 is arranged as a flaring 512, the elastic piece 5 can not be squeezed into the adjusting groove 34 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 along a 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 groove section 541 and the second groove section 542 are parallel to each other and are respectively disposed at two sides of the supporting portion 51 which are away from each other. The opening directions of the first and

second groove sections

541, 542 are away from each other. The third slot segment 543 may be an arc-shaped slot, preferably an arc-shaped slot. The third slot segment 543 is bowed 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 lateral 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. The third protruding section 425 has one end connected to an inward end of the first protruding section 423 and the other end connected to an inward end of the second protruding section 424.

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 protrusion section 423 has the same length as 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 limiting portion 52 and the second limiting portion 53 clamp the limiting protrusion 422 from three sides of the supporting portion 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. The second coming-off prevention boss 427 is provided at the tip of the second projection 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 anti-slip boss 426 extends into the first anti-slip groove 544, the second anti-slip boss 427 extends into the second anti-slip groove 545, and the elastic member 5 is difficult to slip out of the mounting groove 421.

In an exemplary embodiment, the resilient connecting member 2 is 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 elastic connection subassembly 2 to couple together first base 1 and second base 4, it is more firm to connect.

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 apart 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 more stable.

In an exemplary embodiment, after tightening of the connecting member 6, 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.

In an exemplary embodiment, the resilient connecting member 2 further comprises a spacer 7. The gasket 7 may be configured as a ring-shaped flat plate structure, and the gasket 7 may be a ring-shaped flat plate. The outer diameter of the washer 7 is larger than the outer diameter of the connecting piece 6. The gasket 7 is sleeved on the stud 3 and clamped between the connecting piece 6 and the elastic piece 5.

The gasket 7 is arranged between the connecting piece 6 and the elastic piece 5, so that the connecting piece 6 is prevented from being in direct contact with the elastic piece 5, the connecting piece 6 and the elastic piece 5 rotate when the connecting piece 6 is screwed to rub against each other to damage the elastic piece 5, meanwhile, the acting area between the gasket 7 and the elastic piece 5 is larger, the gasket 7 can more uniformly transmit thrust to the surface of the elastic piece 5, and the pressure between the gasket 7 and the elastic piece 5 is small.

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 of the vibration damping assembly 100 may also be a mounting base for a motor, the motor housing being attached to the second base.

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 description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the 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:

a stud comprising

A first pillar section, one end of which is connected to the first base; and

2. The vibration damping assembly of claim 1 wherein the stud further comprises a third straight column section disposed between the first straight column section and the second straight column section, both ends of the third straight column section being connected to the ends of the first straight column section and the second straight column section, respectively;

3. The vibration damping assembly according to claim 2, wherein an end of the through hole facing the connecting member is flared.

4. 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.

5. The vibration damping assembly according to any one of claims 1 to 4, wherein the second base includes a connecting portion on which a limit projection is provided;

6. The vibration damping module according to claim 5, 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.

7. The vibration damping assembly according to claim 6, 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;

8. The vibration damping assembly according to claim 7, 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;

9. The vibration damping assembly of claim 7 wherein the bottom surface of the first groove segment is recessed inwardly to form a first anti-drop groove;

10. 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 uniformly spaced apart in a circumferential direction of the first base.

11. An air conditioner, characterized in that, comprising the damping assembly of any one of claims 1 to 10, the second base is a motor housing or a mounting base of a motor.