CN215175860U

CN215175860U - Vibration damping assembly and air conditioner

Info

Publication number: CN215175860U
Application number: CN202121454359.8U
Authority: CN
Inventors: 朱华; 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: 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 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 gasket is sleeved on the stud and is positioned on one side of the connecting piece close to the first base; the elastic piece is provided with a through hole sleeved on the stud, clamped between the gasket and the first base and connected to the second base. 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 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 gasket is sleeved on the stud and is positioned on one side of the connecting piece close to the first base;

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

the second base comprises a first limiting boss protruding towards the gasket, the first limiting boss abuts against the gasket, and the elastic piece is in a compressed state.

Preferably, the second base further comprises a second limiting boss protruding towards the gasket and abutting against the gasket, and the first limiting table and the second limiting table are symmetrical with respect to the axis of the stud.

Preferably, the first base comprises a connecting part, a limiting bulge is arranged on the connecting part, and the first limiting boss is arranged on one side, close to the gasket, of the limiting bulge;

the elastic piece is provided with and holds spacing bellied spacing groove, be provided with on the lateral wall of spacing groove and dodge the first groove of stepping down of first spacing boss.

Preferably, the elastic member includes:

the supporting part is clamped between the gasket and the first base, and the through hole penetrates through the supporting part;

the first limiting part extends outwards from one end of the supporting part, which is far away from the first base, along the radial direction of the through hole, and is provided with a first abdicating groove which penetrates through the first limiting part;

the second limiting part extends outwards from one end, close to the first base, of the supporting part along the radial direction of the through hole;

the supporting part, the first limiting part and the second limiting part enclose the limiting groove, and the first abdicating groove penetrates through the first limiting part.

Preferably, the edge of the first abdicating groove is chamfered.

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 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, 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, 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, first spacing boss is to gasket and connecting piece locking when the spacing boss of second base offsets with the gasket for the rigidity of elastic component stops at the design value and can not continue the increase. Meanwhile, the connecting piece, the gasket and the first limiting boss are rigid pieces, and the connecting piece is in rigid contact with the gasket and the gasket is in rigid contact with the first limiting boss, 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 second base according to an embodiment of the present invention;

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

fig. 6 is a schematic perspective view of an elastic member 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 cross-sectional view of an elastic connection assembly in an example of the present invention, with the connection member in an untwisted state;

FIG. 9 is an enlarged view taken at A in FIG. 8;

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; 428. a first limit boss; 429. a second limit boss; 5. an elastic member; 51. a support portion; 511. a through hole; 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; 546. a first abdicating groove; 547. a second abdicating groove; 6. a connecting member; 61. a screw hole; 62. an internal thread; 7. and (7) a gasket.

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. Moreover, the motor is generallyThe motor is provided with a plurality of mounting feet which are respectively connected with a plurality of rubber damping pads, the rubber damping pads are respectively fixed on a plurality of mounting columns through a plurality of bolts, the pretightening force of each bolt is different, the deformation quantity of each mounting foot of the motor is uncontrollable, and the assembly precision of the motor is poor, for example, the coaxiality is low, the bounce is large, and the noise is increased. 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 connection assembly 2 comprises a stud 3, an elastic member 5, a connecting member 6 and a washer 7.

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 stud segment 31 and a second stud segment 32. The first straight column section 31 and the second straight column section 32 are both straight-bar-shaped, and one end of the first straight column section 31 is connected to one end of the second straight column section 32. 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. 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 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 stud 3 is inserted into the mounting groove 421, and the extending direction of the stud 3 is parallel to the axial direction of the column 41.

The inner wall of the mounting groove 421 is provided with a limit protrusion 422. The connecting portion 42 is further provided with a first limit projection 428 and a second limit projection 429. First spacing boss 428 and second spacing boss 429 all set up on the inner wall of mounting groove 421, and all are located one side that spacing arch 422 deviates from first base 1. The first restraint boss 428 and the second restraint boss 429 can be connected with the restraint projection 422.

As shown in fig. 2, 8 and 10, 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 sleeved on the second straight column section 32 of the stud 3. 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 connecting piece 6 may be a nut, for example a hexagonal nut.

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, is arranged on one side of the connecting piece 6 close to the first base 1 and is abutted against the connecting piece 6.

As shown in fig. 6, 7 and 10, 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 stud 3, and the support portion 51 is sandwiched between the gasket 7 and the first base 1. The first end 513 abuts against the pad 7, and the second end 514 abuts against the first base 1. The distance between the end surface of the first end 513 and the end surface of the second end 514 is greater than the length of the first pillar section 31 of the stud 3, and the length of the through hole 511 is greater than the length of the first pillar 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 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 position-limiting surface 521 and the second position-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 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 equal to the width between the first stopper portion 52 and the second stopper portion 53.

The first limiting portion 52 is provided with a first yielding groove 546 and a second yielding groove 547, and both the first yielding groove 546 and the second yielding groove 547 penetrate through the first limiting portion 52 along the axial direction of the through hole 511. The first and

second relief grooves

546 and 547 are located at opposite sides of the through hole 511, respectively.

Thus, the first stopper projection 428 can pass through the first escape groove 546 and abut against the gasket 7, and the second stopper projection 429 can pass through the second escape groove 547 and abut against the gasket 7.

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 rotating when the connecting piece 6 is screwed and the elastic piece 5 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.

During assembly, as shown in fig. 1, 9 and 10, 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, and meanwhile, the first yielding groove 546 is enabled to yield from the first limiting boss 428, and the second yielding groove 547 is enabled to yield from the second limiting boss 429; 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; then sleeving the gasket 7 on the stud 3 to enable the gasket 7 to be abutted against the elastic piece 5; finally, as shown in fig. 10, the connecting member 6 is sleeved on the second straight column section 31 and the connecting member 6 is screwed, the connecting member 6 pushes the gasket 7 to compress the elastic member 5 until the first limiting boss 428 and the second limiting boss 429 both abut against the gasket 7, and the first limiting boss 428 and the second limiting boss 429 limit the gasket 7 and the connecting member 6 so that the connecting member 6 cannot be screwed continuously.

In this way, the elastic element 5 is clamped between the first base 1 and the gasket 7, the elastic element 5 is fastened on the first base 1 by the connecting piece 6, the gasket 7 and the stud 3, and the elastic element 5 is connected to the second base 4, so that the elastic element 5 elastically connects the first base 1 and the second base 4, and the elastic element 5 can attenuate the vibration of the second base 4 to play a role in vibration reduction. In the process of screwing the connecting piece 6, the elastic piece 5 is gradually compressed, the end face of the first end 513 and the end face 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 for clamping the limiting protrusion 422 of the connecting part 42 is gradually increased, the rigidity of the elastic piece 5 is gradually increased, when the first limiting boss 428 and the second limiting boss 429 both abut against the gasket 7, the connecting piece 6 cannot be screwed further, at the moment, the rigidity of the elastic piece 5 reaches the designed value, and the vibration damping effect is prominent. Therefore, even if the wind screwdriver is used to tighten the connecting member 6, the first and

second limit bosses

428 and 429 stop the connecting member 6 when the internal thread 62 of the connecting member 6 abuts against the end of the first pillar section 31 and the gasket 7, so that the rigidity of the elastic member 5 stays at the design value without further increasing. Meanwhile, as the connecting piece 6 is in rigid contact with the gasket 7 and the gasket 7 is in rigid contact with the second base 4, the connecting piece 6 is difficult to loosen after the connecting piece 6 is pre-tightened.

In an exemplary embodiment, the first stop boss 428 and the second stop boss 429 are symmetrically disposed on opposite sides of the stud, i.e., both are symmetrical about the axis of the stud.

After the first limiting boss 428 and the second limiting boss 429 are symmetrically arranged, the pressure between the first limiting boss 428 and the pressure between the second limiting boss 429 and the gasket 7 are equal. The interaction forces between the spacer 7 and the second base 4 are more equalized.

In an exemplary embodiment, the edges of the first and

second relief grooves

546, 547 are chamfered. The chamfering process may be chamfering or rounding.

The edges of the first and second yielding

grooves

546 and 547 are chamfered, so that yielding spaces are formed at the edges of the first and second yielding

grooves

546 and 547, and when the elastic member 5 is compressed, a part of the elastic member 5 can be filled in the yielding spaces, so that the stress concentration degree of the elastic member 5 is reduced, and the service life of the elastic member 5 is prolonged.

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.

The first stopper boss 428 is provided on the side of the first projecting section 423 adjacent to the gasket 7. A second stopper boss 429 is provided on the side of the second projecting section 424 adjacent to the gasket 7.

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 tightening of the connecting member 6, the elastic member 5 is compressed in the axial direction of its 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 the 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 being mounted directly on the mounting 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 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 assembly;

the elastic connection assembly includes:

the second base comprises a first limiting boss, the first limiting boss abuts against the gasket, and the elastic piece is in a compression state.

2. The vibration attenuation assembly of claim 1, wherein the second pedestal further comprises a second limit boss abutting the shim, the first limit boss and the second limit boss being symmetrical about the axis of the stud.

3. The vibration damping assembly of claim 1,

the second base comprises a connecting part, a limiting bulge is arranged on the connecting part, and the first limiting boss is arranged on one side, close to the gasket, of the limiting bulge;

4. The vibration damping assembly of claim 3 wherein said resilient member comprises:

the supporting part, the first limiting part and the second limiting part enclose the limiting groove.

5. The vibration damping assembly according to claim 4, wherein an edge of the first relief groove is chamfered.

6. The vibration damping assembly according to claim 4, 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 stopper groove is a strip-shaped groove extending in a circumferential direction of the support portion;

8. 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;

9. The vibration damping assembly according to any one of claims 1 to 8, wherein the elastic member is compressed by 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.

10. The vibration damping assembly according to any one of claims 1 to 8, 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.

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