CN113027979B - Vibration damper structure and household appliance - Google Patents

Vibration damper structure and household appliance Download PDF

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Publication number
CN113027979B
CN113027979B CN201911347281.7A CN201911347281A CN113027979B CN 113027979 B CN113027979 B CN 113027979B CN 201911347281 A CN201911347281 A CN 201911347281A CN 113027979 B CN113027979 B CN 113027979B
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China
Prior art keywords
vibration
damper
bushing
supporting column
damping
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CN201911347281.7A
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Chinese (zh)
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CN113027979A (en
Inventor
张肃
沈靖皓
王跃辉
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
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Priority to CN201911347281.7A priority Critical patent/CN113027979B/en
Publication of CN113027979A publication Critical patent/CN113027979A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/002Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F16F15/0232Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a shock absorber structure and a household appliance, wherein the shock absorber structure comprises a rod part and a shock absorption connecting part, the rod part comprises a first end and a second end which are opposite, the shock absorption connecting part comprises a supporting column and a lining, the supporting column is at least partially positioned in the lining, the first end penetrates through the supporting column and the lining, and the rigidity of the supporting column is greater than that of the lining. In the shock absorber structure, the rigidity of the supporting column is greater than that of the bushing, so that a composite rigidity effect is realized by adopting a combined structure, the system freedom degree is ensured under small-amplitude vibration, and the suppression of system vibration is enhanced under large-amplitude vibration. Therefore, the control effect on the vibration with large and small amplitude can be good.

Description

Vibration damper structure and household appliance
Technical Field
The invention relates to the field of household appliances, in particular to a shock absorber structure and a household appliance.
Background
The vibration of the washing machine is an important performance of the washing machine as an external expression which can be directly sensed. Due to the influence of the vibration characteristics of the washing machine, the traditional washing machine plug pin connection mode is only suitable for a shock absorber structure which has a hanging spring to bear load and does not need to bear the load. The existing shock absorbers have poor shock absorption effect on the barrel part at low rotating speed and high rotating speed.
Disclosure of Invention
The embodiment of the invention provides a vibration absorber structure and a household appliance.
An embodiment of the present invention provides a damper structure, including:
a stem portion comprising a first end and a second end opposite each other;
the vibration damping connecting part comprises a supporting column and a lining, the supporting column is at least partially located in the lining, the first end penetrates through the supporting column and the lining, and the rigidity of the supporting column is larger than that of the lining.
In the shock absorber structure, the rigidity of the supporting column is greater than that of the lining, and the combined structure is adopted to realize the composite rigidity effect, so that the system freedom degree is ensured during small-amplitude vibration, and the suppression of system vibration is enhanced during large-amplitude vibration. Therefore, the control effect on the vibration with large and small amplitudes can be good.
In certain embodiments, the thickness of the bushing is less than the thickness of the support post.
In some embodiments, the damper structure includes an elastic member, the rod portion is sleeved with the elastic member, one end of the elastic member abuts against the rod portion, and the other end of the elastic member abuts against the damper connecting portion.
In some embodiments, one end of the bushing is provided with a raised ring, and the damper structure includes a spacer provided between the other end of the resilient member and the raised ring.
In certain embodiments, the damper structure includes a first fastener that removably couples the first end and locks the damper attachment portion to the first end.
In some embodiments, the damper structure includes a damper mounting portion through which the second end is disposed and a second fastener removably coupled to the second end and securing the damper mounting portion to the second end.
In some embodiments, the damping mount includes a damping member and a clamping member, the clamping member clamps the damping member, and the second fastener causes the clamping member to clamp the damping member to lock the damping member to the second end.
The household appliance provided by the embodiment of the invention comprises a vibrating body and the vibration damper structure of any embodiment, wherein the vibration damper connecting part is connected with the vibrating body.
In the household appliance, the rigidity of the supporting column is greater than that of the bushing, so that a composite rigidity effect is realized by adopting a combined structure, the degree of freedom of a system is ensured during small-amplitude vibration, and the suppression of the system vibration is enhanced during large-amplitude vibration. Therefore, the control effect on the vibration with large and small amplitude can be good.
In some embodiments, the household appliance includes a base plate, and the second end is connected to the base plate.
In some embodiments, the household appliance includes a height-adjustable foot pad mounted to a bottom surface of the base plate.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a side schematic view of a shock absorber structure according to an embodiment of the present invention;
FIG. 2 is an exploded view of a shock absorber structure of an embodiment of the present invention;
FIG. 3 is a sectional view of a structure of a shock absorber according to an embodiment of the present invention;
FIG. 4 is a perspective view of a vibration damping attachment according to an embodiment of the present invention;
FIG. 5 is an exploded view of a vibration damping attachment in accordance with an embodiment of the present invention;
FIG. 6 is a perspective view of a vibration damping mount according to an embodiment of the present invention;
FIG. 7 is an exploded view of a vibration damping mount of an embodiment of the present invention;
FIG. 8 is another exploded view of the vibration damping mount of the present embodiment;
fig. 9 is a schematic structural view of a home appliance according to an embodiment of the present invention;
fig. 10 is a sectional view of a home appliance according to an embodiment of the present invention.
Description of the main element symbols:
a damper structure 100, a household appliance 200;
the damping device comprises a rod part 11, a first end 12, a second end 13, a damping connecting part 14, a support column 15 and a bushing 17;
the elastic piece 21, the convex ring 23, the gasket 25 and the first fastening piece 27;
the damping mounting part 31, the damping piece 33, the first damping piece 34, the second damping piece 35, the clamping piece 37 and the second fastening piece 39;
a limiting member 51, a protrusion 53, a limiting portion 55, a first surface 56, a limiting groove 57, a second surface 58, and an accommodating space 59;
vibrator 71, convex portion 73, mounting groove 75, bottom plate 77, connecting piece 78, and foot pad 79.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The disclosure of the present invention provides many different embodiments or examples for implementing different configurations of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Moreover, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1 and 2 in conjunction with fig. 8, an embodiment of the present invention provides a shock absorber structure 100. The damper structure 100 includes a rod portion 11 and a damper connecting portion 14. The stem 11 includes opposite first and second ends 12 and 13. The vibration damping connection 14 includes a support column 15 and a bush 17. The support column 15 is at least partially located within the bushing 17. The first end 12 passes through the support post 15 and the bushing 17. The rigidity of the support column 15 is greater than that of the bush 17.
In the above shock absorber structure 100, the rigidity of the supporting column 15 is greater than the rigidity of the bushing 17, so that a composite rigidity effect is realized by adopting a combined structure, thereby ensuring the degree of freedom of the system under small-amplitude vibration and enhancing the suppression of the system vibration under large-amplitude vibration. Therefore, the control effect on the vibration with large and small amplitudes can be good.
Specifically, the damper structure 100 has a central axis L. The rod portion 11 is formed with two ends, a first end 12 and a second end 13, along the central axis L. Along the length of the rod portion 11, the damper structure 100 has an effect of damping vibrations. Referring to fig. 3-5, the supporting column 15 and the bushing 17 are provided with a through hole along the central axis L for the first end 12 to pass through, so that the supporting column 15 and the bushing 17 are connected to the first end 12. In this way, the tightness of the connection between the first end 12 and the support column 15 and the bushing 17 can be increased, facilitating the transmission of the vibrations by the support column 15 and the bushing 17 to the stem 11.
The damper structure 100 is mainly used to damp various degrees of vibration generated from the home appliance 200 in case the home appliance 200 generates vibration. In case that the home appliance 200 is a washing machine (drum washing machine), the home appliance 200 includes an inner tub rotatably located in an outer tub, and an outer tub. The damper structure 100 is connected to the outer tub such that the damping connection portion 14 can damp the outer tub.
In particular, in the case of a washing machine in an operating state, the inner tub may be rotated to various degrees due to vibration of various magnitudes generated by eccentricity of laundry. Specifically, the inner tub performs a motion with a large centripetal force at a high rotational speed, forming a vibration with a small amplitude and a high frequency; at a low rotation speed, the inner tub may perform a motion having a large eccentric force, resulting in a vibration having a large amplitude and a low frequency.
It can be understood that, through setting up shock absorber structure 100, under the condition that the inner tub produced the small-amplitude vibration, the outer tub also had similar vibration, when the vibration was transmitted to shock absorber structure 100, bush 17 can produce elastic deformation on shock absorber structure 100 owing to have less rigidity to can transmit the vibration along pole portion 11, reduce the influence that the small-amplitude vibration produced support column 15, avoid support column 15 because the excessive wear that the vibration frequency height caused when carrying out the damping, prolonged life.
In the case where the inner tub generates a large amplitude vibration, the outer tub also has a similar vibration, and the support pillar 15 and the bush 17 serve to damp vibration when the vibration is transmitted to the damper structure 100. Specifically, the bush 17 is elastically deformed to attenuate vibration to some extent. The support column 15 has large rigidity, so that the degree of elastic deformation generated when the support column is vibrated is small, and the support column can effectively attenuate large-amplitude vibration. Since the vibration frequency of the large amplitude vibration is low, the support column 15 can be prevented from being broken due to the large frequency.
In the present embodiment, the rod portion 11 is hydraulically structured. It is understood that in other embodiments, the stem portion 11 may employ a pneumatic structure.
The above embodiment has been described in the case where the household appliance 200 is a washing machine. It is understood that the home appliance 200 may be a laundry treating appliance such as a dryer, or other home appliances 200 having the vibration body 71.
Referring to fig. 3, in some embodiments, the thickness M of the bushing 17 is less than the thickness N of the support column 15. Thus, the effect of suppressing vibration under large amplitude vibration can be enhanced.
It is understood that in the case of large amplitude vibration, the damper structure 100 is mainly damped by the support columns 15 having large rigidity. Through the thickness M that reduces bush 17, the vibration on bush 17 can transmit to support column 15 fast, avoids bush 17 to take place excessive deformation owing to receive vibration by a wide margin, has guaranteed the suppression effect of shock absorber structure 100 to vibration by a wide margin.
Referring to FIG. 1, in some embodiments, the damper structure 100 includes a first fastener 27, the first fastener 27 removably coupling the first end 12 and locking the damper attachment portion 14 to the first end 12. In this way, the tightness of the connection between the first end 12 and the damping connection 14, the support column 15 can be increased.
It will be appreciated that in the event of a loose connection between the shank 11 and the damping connection 14, when subjected to vibrations, may rock on the first end 12, so that the first end 12, the support column 15 and the bushing 17 may collide and be subjected to wear.
Specifically, in the illustrated embodiment, the first fastener 27 is a nut and the first end 12 has a corresponding threaded configuration. With the shank portion 11 threaded into the shock absorbing attachment portion 14 along the central axis L, the first fastener 27 is threadably attached to the first end 12 so as to engage the shank portion 11 to restrain the shock absorbing attachment portion 14 to the first end 12. In this way, when the damper structure 100 damps vibration, the vibration damping connection portion 14 and the first end 12 are prevented from being separated from each other, and vibration cannot be transmitted along the rod portion 11 in time, thereby reducing the vibration damping effect of the damper structure 100.
In other embodiments, the vibration dampening connection 14 may be secured to the first end 12 by a weld, snap, interference fit connection. Other embodiments are not limited thereto.
Referring to fig. 1 and fig. 2, in some embodiments, the damper structure 100 includes an elastic member 21, the elastic member 21 is disposed on the rod portion 11, one end of the elastic member 21 abuts against the rod portion 11, and the other end of the elastic member 21 abuts against the damping connecting portion 14. In this way, the vibration received by the vibration damping connection portion 14 can be damped, and the vibration receiving strength of the vibration damper structure 100 can be improved.
Specifically, in the illustrated embodiment, the elastic member 21 includes a spring. The spring is sleeved on the rod portion 11 along the central axis L. In the embodiment shown in fig. 2, the damper structure 100 further includes a stopper 51 and a protrusion 53. The protrusion 53 is protruded from an outer surface of the limiting member 51, and extends outward on the limiting member 51 perpendicular to the length direction. The stopper 51 is fitted around the rod 11 along the central axis L. One end of the elastic member 21 abuts against the vibration damping connecting portion 14, and the other end of the elastic member 21 abuts against the protrusion 53 of the stopper 51. In this way, when the vibration damping connection portion 14 is moved by receiving vibration, the elastic member 21 is compressed accordingly, so that the vibration is gradually attenuated by the transmission of the elastic member 21 to the rod portion 11. Meanwhile, the vibration damping connection portion 14 may receive the elastic force generated by the elastic member 21, and may buffer the force generated by the vibration received by the vibration damping connection portion 14, so as to improve the bearing strength of the vibration damper structure 100 to the vibration, and enable the vibration damping connection portion 14 to bear greater vibration strength.
In other embodiments, the stopper 51 may be omitted from the damper structure 100, and the protrusion 53 and the rod portion 11 may be integrally connected or may be embedded in the outer surface of the rod portion 11. Other embodiments are not limited thereto.
In addition, the elastic member 21 may be made of a material having high strength, good toughness and a certain thickness, for example, at least one of a metal material, a carbon fiber material and a plastic material may be used for the elastic member 21, so that the effect of transmitting vibration and the strength of bearing the vibration of the elastic member 21 may be improved, and the service life of the elastic member 21 may be prolonged. The elastic member 21 in other embodiments is not limited thereto.
Referring to fig. 2-5, in some embodiments, one end of the bushing 17 is provided with a convex ring 23, and the damper structure 100 includes a gasket 25, wherein the gasket 25 is disposed between the other end of the elastic member 21 and the convex ring 23. In this way, the contact area between the vibration damping connecting portion 14 and the elastic member 21 can be increased, so that a uniform force can be applied between the vibration damping connecting portion 14 and the elastic member 21.
Specifically, the protruding ring 23 protrudes from the outer surface of the bush 17, and extends outward on the bush 17 perpendicular to the length direction. In the embodiment shown in fig. 2, the spacer 25 is ring-shaped. The first end 12 penetrates the pad 25 along the length direction, one end of the elastic element 21 abuts against the protrusion 53 of the limiting element 51, and the other end of the elastic element 21 abuts against one surface of the pad 25. When the rod 11 is inserted into the vibration damping connecting portion 14, the collar 23 of the bush 17 is bonded to the other surface of the spacer 25.
It will be appreciated that by providing the projecting ring 23 and the spacer 25, the contact area between the vibration damping attachment portion 14 and the elastic member 21 is increased. In the case that the vibration damping connecting portion 14 transmits vibration to the elastic member 21, the convex ring 23 and the gasket 25 can be in sufficient contact, so that the stress between the vibration damping connecting portion 14 and the elastic member 21 is uniform, and the abrasion caused by uneven stress is avoided.
In addition, in other embodiments, the spacer 25 is fixed to one end of the elastic member 21 contacting the bushing 17. The spacer 25 may be made of a material having high strength, such as a metal spacer, so that the spacer 25 can withstand the vibration transmitted from the bushing 17 to the elastic member 21.
Referring to fig. 1 and 6, in some embodiments, the damper structure 100 includes a damper mounting portion 31 and a second fastening member 39, the second end 13 is disposed through the damper mounting portion 31, and the second fastening member 39 is detachably connected to the second end 13 and fastens the damper mounting portion 31 to the second end 13. As such, in the case where the vibration damping mounting portion 31 is used for vibration damping, the mounting of the vibration damping mounting portion 31 to the second end 13 may be facilitated to enhance the vibration damping effect of the vibration damper structure 100.
Specifically, the second end 13 penetrates the vibration damping mount 31 in the length direction and is connected to the vibration body 71 of the home appliance 200 through the vibration damping mount 31. Referring to fig. 1, when the damper structure 100 damps vibration, the vibration received by the first end 12 is transmitted to the second end 13 along the length direction. By providing the vibration damping mounting portion 31, the vibration at the second end 13 can be damped, thereby reducing the influence of the vibration on the outside of the household appliance 200. In the illustrated embodiment, the vibration damping mounting portion 31 may be made of rubber as a vibration damping material. It can be understood that the rubber has certain rigidity and elasticity, and can buffer the vibration received by the vibration damping mounting portion 31 and can bear certain vibration strength.
In addition, a plurality of materials having different rigidities may be used for the damper mounting portion 31. Specifically, the vibration damping mount 31 may be connected to the second end 13 through a material having high rigidity, and connected to the home appliance 200 through a material having low rigidity. The specific principle is similar to the principle in which the damping connection 14 serves to damp vibrations. The vibration damping mounting portion 31 in the other embodiments is not limited thereto.
In addition, in the embodiment shown in fig. 1, the second end 13 and the second fastening member 39 have a threaded structure, and the second end 13 and the second fastening member 39 are connected by means of a threaded connection, so that the second fastening member 39. The second end 13 and the second fastener 39 may also be connected by snap, weld, or interference fit.
Referring to fig. 6-8, in some embodiments, the damper mounting portion 31 includes a damper member 33 and a clamp member 37, the clamp member 37 clamps the damper member 33, and the second fastener 39 causes the clamp member 37 to clamp the damper member 33 such that the damper member 33 is secured to the second end 13. In this way, the vibration damper structure 100 can be conveniently connected to the household appliance 200 through the vibration damper mounting part 31 while ensuring the vibration damping effect of the vibration damper mounting part 31.
Specifically, in the embodiment shown in fig. 7 and 8, the damper member 33 includes a first damper member 34 and a second damper member 35, and the clamp member 37 includes a first clamp member 37a and a second clamp member 37b. Along the central axis L, the rod portion 11 is sequentially pierced with the first clamping member 37a, the first damper 34, the second damper 35, and the second clamping member 37b, while making the first surface 56 of the first damper 34 and the second surface 58 of the second damper 35 opposed. The vibration damping mounting portion 31 includes a defining portion 55, the defining portion 55 is provided to protrude from the first surface 56, and the defining portion 55 extends toward the second surface 58 along the center axis L. The second surface 58 of the second damper 35 is recessed along the center axis L to form a defining groove 57 corresponding to the defining portion 55. With the first damper piece 34 and the second damper piece 35 fitted together, the defining portion 55 is partially housed in the defining groove 57. Thus, the first and second damping members 34 and 35 may be defined with respect to each other, so that the coupling strength of the first and second damping members 34 and 35 may be improved. Meanwhile, the first and second faces 56 and 58 may be spaced apart from each other and form a receiving space 59. Specifically, the home appliance 200 has a connection structure for connecting the vibration damping mount 31. The first vibration damper 34 is inserted through the connection structure of the home appliance 200 through the restriction portion 55 and received in the restriction groove 57, and the connection structure of the home appliance 200 is fixed in the receiving space 59 by the restriction portion 55, so that the vibration damper mounting portion 31 is fixedly connected to the home appliance 200.
In addition, by providing the first clamping member 37a and the second clamping member 37b, the contact areas between the damping member 33 and the second end 13 and between the damping member 33 and the second fastening member 39 can be increased, so that the damping member 33 can be uniformly stressed, and the connection tightness of the damping member 33 on the rod portion 11 can be improved.
Referring to fig. 9 and 10, an embodiment of the present invention provides a household appliance 200, which includes a vibrating body 71 and the damper structure 100 of any of the above embodiments, wherein the damper connecting portion 14 is connected to the vibrating body 71.
In the household appliance 200, the rigidity of the supporting column 15 is greater than that of the bushing 17, so that a composite rigidity effect is realized by adopting a combined structure, the degree of freedom of the system is ensured when small-amplitude vibration is realized, and the suppression of the system vibration is enhanced when large-amplitude vibration is realized. Therefore, the control effect on the vibration with large and small amplitude can be good.
It will be appreciated that the vibration body 71 is connected by the vibration damping connection portion 14, and in the event that the vibration body 71 begins to vibrate, the vibration damping connection portion 14 may transmit the vibration on the vibration body 71 in time and damp the vibration along the length of the damper structure 100 such that the vibration on the vibration body 71 begins to attenuate.
The following embodiment will explain a case where the home appliance 200 is a washing machine. It is understood that the household appliance 200 may be a clothes treating appliance such as a dryer, or other household appliances 200 having the vibration body 71.
In case that the vibration damper structure 100 is applied to a washing machine, the vibration body 71 may be an outer tub of the washing machine. The washing machine further includes an inner tub (not shown) rotatably provided at the outer tub, the inner tub being used to place articles such as laundry. Under the condition that the washing machine is in the dehydration stage, the inner barrel starts to rotate, so that the outer barrel is driven to vibrate. In this case, the damper structure 100 may damp the vibration received by the outer tub, so that the outer tub may be prevented from shaking due to the vibration, and simultaneously, the noise generated by the vibration may be reduced, thereby improving the use effect of the household appliance 200.
In the illustrated embodiment, four damper structures 100 are connected to the oscillating body 71. Thus, the damper structure 100 also has a supporting function for the vibrator 71. It is understood that in other embodiments, the number of damper structures 100 can be three, or five, and the number of damper structures 100 can be adjusted as the case may be.
Referring to fig. 10, in some embodiments, a protrusion 73 is disposed at a lower portion of the vibration body 71, the protrusion 73 is provided with a mounting groove 75, and the vibration damping connection portion 14 is at least partially located in the mounting groove 75. In this way, the connection tightness of the damper structure 100 and the vibration body 71 is improved.
Specifically, the convex portion 73 is provided at a lower portion of the vibrator 71 corresponding to the damper structure 100. The convex portion 73 is recessed to form a mounting groove 75 corresponding to the vibration damping connection portion 14. In the case where the damper structure 100 is connected to the convex portion 73, the damper connection portions 14 of the damper structure 100 are partially received in the mounting grooves 75, so that the damper connection portions 14 can be connected to the convex portion 73. In this way, the contact area of the vibration reduction connection portion 14 and the vibration body 71 can be increased, so that the connection between the vibration reduction connection portion 14 and the vibration body 71 is more tight. When the damper structure 100 transmits vibration, the vibration damping connecting portion 14 and the vibrator 71 are prevented from being separated, and the vibration damping effect of the damper structure 100 can be reduced.
The number of projections 73 may be the number corresponding to the number of damper structures 100. In the illustrated embodiment, the number of the convex portions 73 is four, and the number of the damper structures 100 is four. The four protrusions 73 are provided at the lower portion of the vibrator 71 corresponding to the four damper structures 100. The damper attachment portion 14 of each damper structure 100 is attached to the corresponding mounting groove 75 of the boss portion 73. In this way, the supporting action of the damper structure 100 on the vibrating body 71 can be enhanced while the damping effect of the damper structure 100 is ensured.
The convex portion 73 is recessed with a mounting groove 75 corresponding to the first end 12. In the case where the damper structure 100 is connected to the convex portion 73, the damper connecting portion 14 may be partially received in the mounting groove 75. In this way, the vibration damping effect and the supporting function of the vibration damper structure 100 are improved.
Referring to fig. 9 and 10, in some embodiments, the household appliance 200 includes a base plate 77, and the second end 13 is connected to the base plate 77. In this manner, base plate 77 may cooperate with damper structure 100 to dampen vibration of vibrator 71.
Specifically, the second end 13 is connected to the bottom plate 77 through the vibration damping mounting portion 31, and in the case where the vibration body 71 transmits vibration to the vibration damping structure 100, the vibration damping structure 100 may further damp vibration through the vibration damping mounting portion 31, transmitting vibration to the bottom plate 77 as little as possible, so that the vibration of the bottom plate 77 is reduced, and the vibration of the vibration body 71 is prevented from being transmitted to the outside of the household appliance 200. The base plate 77 may be made of a material having a relatively high rigidity, such as a metal material, so that the vibration damping effect of the base plate 77 can be increased.
In the illustrated embodiment, four damper structures 100 are fixedly attached to the base plate 77. Thus, the base plate 77 can cooperate with the supporting action of the four damper structures 100 on the vibration body 71.
In the illustrated embodiment, the bottom plate 77 is provided with a connector 78. Referring to fig. 6 and 7, in the case that the first damping member 34 is connected to the second damping member 35, the limiting portion 55 is disposed through the connecting member 78, so that the connecting member 78 is partially received in the receiving space 59, and the damping member 33 can be connected to the bottom plate 77 through the connecting member 78. It is understood that in the case where the damper structure 100 is connected to the vibration body 71 and the base plate 77, an acute angle may be formed between the central axis L and the plane in which the base plate 77 lies. In this way, the connecting member 78 can be adjusted in accordance with the angle between the damper structure 100 and the base plate 77, so that the mounting of the damper member 33 to the base plate 77 can be facilitated.
Referring to fig. 9 and 10, in some embodiments, the home appliance 200 includes a height-adjustable foot pad 79, and the foot pad 79 is mounted on the bottom surface of the bottom plate 77. As such, in the case where the plurality of damper structures 100 are connected to the vibration body 71, the plurality of damper structures 100 can be enabled to be uniformly stressed.
It will be appreciated that height-adjustable foot pads 79 facilitate the integral placement of base plate 77 and the structures on base plate 77 in relatively water-prone positions, enabling uniform loading of shock absorber structure 100.
In the illustrated embodiment, the foot pads 79 are four in number. Four foot pads 79 are provided on the bottom surface of the bottom plate 77. In the case where the home appliance 200 is placed on a certain supporting surface (e.g., the ground), the four foot pads 79 contact the supporting surface, thereby generating a supporting force to the vibration body 71. In the case where the vibrator 71 is inclined, the posture of the foot pad 79 can be corrected by adjusting the height of the corresponding foot pad 79, and finally the home appliance 200 can be placed while being maintained in a horizontal position.
In addition, the height of the foot pad 79 can be adjusted by means of threads, buckles and sliding grooves. Specifically, in the case where the foot pad 79 includes a screw structure, the foot pad 79 may be screwed in and out at the bottom plate 77 by the screw structure. In the case where the foot pad 79 includes a snap structure, the foot pad 79 may be lengthened and shortened in the height direction, and the lengthened or shortened state of the foot pad 79 is fixed by the snap structure. And is not particularly limited herein.
In the description of the specification, references to the terms "one embodiment", "some embodiments", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. A shock absorber structure, comprising:
a stem portion comprising a first end and a second end opposite each other;
the damping connecting part comprises a supporting column and a bushing, the supporting column is at least partially positioned in the bushing, the first end penetrates through the supporting column and the bushing, and the rigidity of the supporting column is greater than that of the bushing;
the shock absorber structure comprises an elastic piece, the rod part is sleeved with the elastic piece, one end of the elastic piece abuts against the rod part, and the other end of the elastic piece abuts against the shock absorbing connecting part;
a convex ring is arranged at one end of the bushing, the shock absorber structure comprises a gasket, and the gasket is arranged between the other end of the elastic part and the convex ring;
the damper structure includes a first fastener removably coupled to the first end and locking the damper attachment portion to the first end;
the vibration absorber structure comprises a vibration absorbing installation part and a second fastener, the second end penetrates through the vibration absorbing installation part, and the second fastener is detachably connected with the second end and locks the vibration absorbing installation part at the second end.
2. The shock absorber structure of claim 1, wherein the thickness of the bushing is less than the thickness of the support column.
3. The damper structure of claim 1, wherein the damper mounting portion includes a damper member and a clamp member, the clamp member clamping the damper member, the second fastener causing the clamp member to clamp the damper member to secure the damper member at the second end.
4. A domestic appliance comprising a vibrating body and a damper structure as claimed in any one of claims 1 to 3, said damper connection connecting said vibrating body.
5. The household appliance of claim 4, wherein the household appliance comprises a base plate, the second end being connected to the base plate.
6. The household appliance of claim 5, comprising a height adjustable foot pad mounted on a bottom surface of the base plate.
CN201911347281.7A 2019-12-24 2019-12-24 Vibration damper structure and household appliance Active CN113027979B (en)

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