CN111254649A - Washing machine - Google Patents
Washing machine Download PDFInfo
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- CN111254649A CN111254649A CN202010084401.5A CN202010084401A CN111254649A CN 111254649 A CN111254649 A CN 111254649A CN 202010084401 A CN202010084401 A CN 202010084401A CN 111254649 A CN111254649 A CN 111254649A
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- washing machine
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- damping block
- shell
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- 238000005406 washing Methods 0.000 title claims abstract description 85
- 238000013016 damping Methods 0.000 claims abstract description 189
- 239000006096 absorbing agent Substances 0.000 claims abstract description 47
- 230000035939 shock Effects 0.000 claims abstract description 37
- 230000009467 reduction Effects 0.000 claims description 19
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 19
- 239000000725 suspension Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention provides a washing machine, and belongs to the technical field of household appliances. The washing machine includes: a housing; a cylinder disposed in the case; and one end of the shock absorber is connected with the cylinder through a first damping block, and the other end of the shock absorber is connected with the shell through a second damping block, so that the shock absorber is connected with the cylinder and the shell in a shock-absorbing mode respectively, and further the vibration transmitted from the cylinder to the shell is reduced. The invention has the advantage of low vibration noise.
Description
Technical Field
The invention belongs to the technical field of household appliances, and particularly relates to a washing machine.
Background
In the related art, a washing machine cylinder is suspended in a box body of the washing machine, the top of the cylinder is suspended on the box body through a suspension spring, the lower part of the cylinder is connected with a base of the washing machine through a shock absorber, the suspension spring has a suspension supporting effect, and the shock absorber has a vibration reducing effect. In the washing process of the washing machine, the barrel can generate vibration which is transmitted to the washing machine box body through the bottom vibration absorber and the top suspension spring, the larger the damping of the vibration absorber is, the larger the rigidity of the suspension spring is, and the more obvious the vibration transmission effect is.
Disclosure of Invention
The invention provides a washing machine aiming at the technical problems, and the washing machine has the advantage of low vibration noise in the washing process.
In order to achieve the purpose, the invention adopts the technical scheme that:
a washing machine comprising:
a housing;
a cylinder disposed in the case; and
and one end of the shock absorber is connected with the cylinder through a first damping block, and the other end of the shock absorber is connected with the shell through a second damping block, so that the shock absorber is connected with the cylinder and the shell in a shock-absorbing manner respectively, and further the vibration transmitted from the cylinder to the shell is reduced.
Preferably, the damper includes:
a housing having a vibration damping chamber with one end open;
the axial extension direction of the piston rod is defined as the vertical direction, and one end of the piston rod is inserted into the vibration reduction cavity from the opening of the shell and can slide up and down relative to the vibration reduction cavity;
the first damping block is connected to one end, far away from the piston rod, of the shell;
the first fixing piece is fixedly connected to the outer side of the first damping block and fixedly connected with the cylinder;
the second damping block is connected to one end, far away from the shell, of the piston rod; and
and the second fixing plate is fixedly connected to the outer side of the second damping block and connected with the machine shell.
Preferably, the first fixed piece is fitted in the first damping block, and the second fixed piece is fitted in the second damping block.
Preferably, a first stop surface is arranged on the periphery of the shell, the first damping block is sleeved on the shell and stopped by the first stop surface to limit the first damping block to move downwards, and a first nut is connected to the end of the shell to limit the first damping block to move upwards;
the piston rod is provided with a second stop surface, the second damping block is sleeved on the piston rod and stopped by the second stop surface so as to limit the second damping block to move upwards, and the end part of the piston rod is connected with a second nut so as to limit the second damping block to move downwards.
Preferably, the housing has a first small diameter end at the upper end and a first large diameter end at the lower end, and the first stop surface is a first inclined surface connected between the first small diameter end and the first large diameter end;
the piston rod is provided with a second large-diameter end located at the upper end and a second small-diameter end located at the lower end, and the second stop surface is a second inclined surface connecting the second large-diameter end and the second small-diameter end.
Preferably, the first fixing plate is provided with a first mounting hole for connecting with the cylinder body through a fastener, and the second fixing plate is provided with a second mounting hole for connecting with the casing through a fastener.
Preferably, the piston rod is sleeved with a spring, and two ends of the spring respectively abut against the opening end of the shell and the second damping block.
Preferably, a movable cavity with an inner diameter larger than that of the vibration reduction cavity is arranged in the vibration reduction cavity, so that step surfaces are formed at two ends of the movable cavity, which are connected with the vibration reduction cavity;
the shock absorber further includes:
the damping piece is sleeved on the piston rod and located in the movable cavity, the frictional damping force P1 between the inner ring of the damping piece and the piston rod is larger than the frictional damping force P2 between the outer ring of the damping piece and the shell, the step surface can stop the up-down moving range of the damping piece, and the damping piece and the movable cavity have a distance a in the up-down direction.
Preferably, the damping member is a damping strip, or the damping member includes a first damping strip and a second damping strip, and the second damping strip is sleeved outside the first damping strip.
Preferably, P1 is 70N to 120N; p2 ═ 30N to 60N; a is 4 mm-8 mm.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the washing machine realizes the vibration reduction connection of the vibration absorber, the shell and the barrel by arranging the first damping block and the second damping block at the two ends of the vibration absorber, so that the vibration signal of the barrel can be greatly reduced by transmitting the vibration signal to the base and the box body through the vibration absorber, and further the vibration noise of the washing machine is reduced.
2. The spring is arranged on the shock absorber to form the spring-damping integrated shock absorber, so that the shock absorber has the supporting and damping effects, and the vibration of the barrel is mainly transmitted to the base and the box body through the shock absorber, thereby reducing the vibration transmitted to the base and avoiding the problem that the vibration is transmitted to the box body through the suspension spring.
3. The washing machine is provided with a variable damping structure on the shock absorber, namely, the friction damping force P1 between the damping piece and the piston rod is set to be larger than the friction damping force P2 between the damping piece and the shell, and the damping piece has a movable distance a in a movable cavity of the shell, so that when the washing machine works in a low-speed area, the motion amplitude is large, the damping piece is limited in the movable cavity, the piston rod and the damping piece move relatively to generate a large friction damping force P1, and the large amplitude of the cylinder can be inhibited; when the washing machine works in a high-speed area, the cylinder drives the piston rod to vibrate at a high speed, the amplitude is small, the piston rod drives the damping part to move at a high speed in the movable cavity together, relative motion exists between the damping part and the shell to generate a small friction damping force P2, the high-speed vibration noise of the washing machine can be inhibited, the washing machine can automatically adjust the change of the damping force according to different rotating speeds, and therefore the vibration noise performance of the washing machine is improved.
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 drawings without creative efforts.
FIG. 1 is a schematic view illustrating a structure of a washing machine according to the present invention;
FIG. 2 is a perspective view of a damper in the washing machine according to the present invention;
FIG. 3 is a front view of a damper 1 in the washing machine of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view of the housing of FIG. 4;
FIG. 6 is a front view 2 of a damper in the washing machine of the present invention;
FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;
FIG. 8 is a front view of a damper 3 in the washing machine of the present invention;
FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;
FIG. 10 is a cross-sectional view of the housing of FIG. 9;
FIG. 11 is a schematic view of the piston rod of FIG. 9;
in the above figures: a housing 1; a box body 01; a base 02; a cylinder body 2; a suspension spring 3; a shock absorber 4; a housing 41; a damping chamber 411; a movable chamber 412; an opening 413; a step surface 414; a first stop surface 415; a first small diameter end 416; a first large diameter end 417; a piston rod 42; a plug portion 421; a connecting portion 422; a stopper 4221; a second stop surface 423; the second small diameter end 424; a second major diameter end 425; a damping member 43; a first damping strip 431; a second damping bar 432; a spring 44; a first damping mass 45; a first fixing piece 46; a first nut 47; a second damping mass 48; a second fixing piece 49; a second nut 400; a mounting plate 4000; and a drum 5.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
The washing machine of the invention is suitable for a roller washing machine, a pulsator washing machine, a dry washing machine and the like, and the following detailed description is given by taking the roller washing machine as an example:
fig. 1 is a schematic structural view of a washing machine, which includes:
the washing machine comprises a machine case 1, a washing machine body and a control device, wherein the machine case 1 forms the appearance of the washing machine body, the machine case 1 comprises a box body 01 and a base 02, the base 02 is connected to the bottom of the box body 01, a door body (not shown in the figure) is usually connected to the box body 01, the door body is pivotally connected to the box body 01, and clothes can be inserted into or taken out of the washing machine by;
a cylinder 2 fixedly installed in the cabinet 01 for containing washing water; the cylinder 2 is spaced a predetermined distance from the case 01, opposite sides of an upper end of the cylinder 2 are connected to a lower surface of a top of the case 01 by suspension springs 3, and opposite sides of a lower end of the cylinder 2 are connected to an upper surface of the base 02 by dampers 4. The suspension spring 3 and the shock absorber 4 can weaken the vibration and noise transmitted from the cylinder 2 to the machine shell 1;
a drum 5 rotatably installed in the tub 2, defining a side having a door as a front side of the washing machine, the front side of the drum 5 having an inlet that can be opened or closed by pivoting the door, and when the door is rotated to open the inlet, laundry can be inserted into or taken out of the drum 5, and when the door is rotated to close the inlet, the washing machine can enter a washing mode; the drum 5 has a plurality of through holes through which the washing water in the tub 2 is introduced into the drum 5, and the drum 5 may affect the tub 2 to generate vibration and noise during the rotation.
In order to better reduce the vibration and noise generated during the washing process of the existing washing machine, the following technical means can be implemented or combined:
(variable damping Structure of shock absorber 4)
Continuing to refer to fig. 1, the upper end of the shock absorber 4 is connected with the cylinder 2, and the lower end of the shock absorber 4 is connected with the base 02; specifically, referring to fig. 2-5, the damper 4 includes:
a piston rod 42 defining an axial extending direction of the piston rod 42 as an up-down direction, a lower end of the piston rod 42 being connected to an upper surface of the base 02;
the upper end of the shell 41 is connected with the outer surface of the cylinder 2, a vibration reduction cavity 411 is arranged in the shell 41, the lower end of the shell is provided with an opening 413 communicated with the vibration reduction cavity 411, and the upper end of the piston rod 42 is inserted into the vibration reduction cavity 411 from the opening 413; wherein, the damping cavity 411 is internally provided with a movable cavity 412, the inner diameter d1 of the movable cavity 412 is larger than the inner diameter d2 of the damping cavity 411, so that a step surface 414 is formed at the joint of the movable cavity 412 and the damping cavity 411;
the damping member 43 is sleeved outside the piston rod 42 and located in the movable cavity 412, and a frictional damping force can be generated between the damping member 43 and the piston rod 42 and the housing 41, so that the vibration noise transmitted from the cylinder 2 to the casing 1 is reduced.
It should be noted that the upper and lower ends of the shock absorber 4 can also be adjusted, that is, the piston rod 42 is connected to the outer surface of the cylinder 2, and the housing 41 is connected to the upper surface of the base 02, and still fall within the protection scope of the present invention.
In the washing process of the washing machine, the amplitude can also change at different rotating speeds, the speed reducer of the embodiment is provided with a variable damping structure, and the change of the damping force can be automatically adjusted according to different rotating speeds, so that the vibration noise performance of the washing machine is improved. Namely, in the low-speed region, the motion amplitude of the washing machine is large, the output damping force of the shock absorber 4 is large, the motion amplitude of the washing machine in the high-speed region is small, and the output damping force of the shock absorber 4 is small, so that the vibration noise performance of the washing machine is improved.
Specifically, a frictional damping force P1 is generated when the inner ring of the damping member 43 is in contact with the piston rod 42 for relative movement, and a frictional damping force P2 is generated when the outer ring of the damping member 43 is in contact with the housing 41 for relative movement, where P1 > P2; meanwhile, the damping member 43 and the movable cavity 412 have a distance a in the vertical direction, and the step surface 414 can stop the damping member 43, so as to limit the damping member 43 in the movable cavity 412, where the distance a is the vertical movement range of the damping member 43.
When the vibration absorber 4 moves with a smaller amplitude not exceeding a, the piston rod 42 carries the damping member 43 to move together in the movable cavity 412, and the outer ring contact surface of the damping member 43 generates a frictional damping force P2 with the shell 41; when the movement amplitude of the shock absorber 4 is larger, the amplitude exceeds the distance a, the damping piece 43 is limited by the step surface 414, the piston rod 42 and the damping piece 43 move relatively, and the frictional damping force P1 is generated, so that the variable damping shock absorption is realized.
When the washing machine works in a low-speed area, the motion amplitude is large, the cylinder 2 drives the piston rod 42 to move in the vibration reduction cavity 411, the damping piece 43 is limited by the step surface 414, and the piston rod 42 and the damping piece 43 move relatively to generate a large friction damping force P1, so that the large amplitude of the cylinder 2 can be inhibited; when the washing machine works in a high-speed area, the cylinder 2 drives the piston rod 42 to vibrate at a high speed, the amplitude is small, the piston rod 42 of the shock absorber 4 drives the damping piece 43 to move together in the movable cavity 412 at a high speed, and relative movement between the damping piece 43 and the shell 41 generates a small friction damping force P2, so that high-speed vibration noise of the washing machine can be suppressed.
Specifically, according to the rotating speed and motion amplitude rule of the washing machine in the washing process, setting P1 as 70N-120N, and setting P2 as 30N-60N; a is 4 mm-8 mm. That is, when the washing machine works in a low-speed area, the movement amplitude is large, the damping piece 43 is limited by the step surface 414, the piston rod 42 and the damping piece 43 move relatively to generate friction damping force 70N-120N, and a good inhibiting effect can be generated on the large amplitude of the cylinder 2; when the washing machine works in a high-speed area, the amplitude is small, generally between 4mm and 8mm, the damping piece 43 moves in the movable cavity 412 along with the piston rod 42, and the relative movement between the damping piece 43 and the shell 41 generates a frictional damping force of 30N to 60N, so that the vibration noise can be well inhibited.
According to the embodiment of the present washing machine, the damping member 43 is a layer of damping bars, and the inner ring and the outer ring of the damping bars have different damping forces to satisfy the frictional damping force P1 between the inner ring and the piston rod 42 and the frictional damping force P2 between the outer ring and the housing 41.
Based on the embodiment of the washing machine, referring to fig. 4, the damping member 43 is two layers of damping bars, namely a first damping bar 431 and a second damping bar 432, the first damping bar 431 and the second damping bar 432 are combined together, the second damping bar 432 is located outside the first damping bar 431, an inner ring of the first damping bar 431 slides relative to the piston rod 42 to generate a frictional damping force P1, and the second damping bar 432 slides relative to the housing 41 to generate a frictional damping force P2.
When the damping member 43 is a two-layer damping strip, the outer diameter of the first damping strip 431 is larger than the inner diameter of the damping cavity 411, so that the limitation of the step surface 414 to the first damping strip 431 can be effectively ensured when the amplitude is large, and the relative stress between the first damping strip 431 and the second damping strip 432 is avoided.
Specifically, the damping member 43 is in an interference fit between the piston rod 42 and the housing 41, so that the damping member 43 can be effectively ensured to be in contact with the piston rod 42 and the damping member 43 and the housing 41, and a friction damping effect is achieved.
In some embodiments, referring to FIG. 5, the movable chamber 412 is located near the middle-lower end of the housing 41, i.e., the distance L1 from the movable chamber 412 to the upper end of the housing 41 is greater than the distance L2 from the movable chamber 412 to the lower end of the housing 41, which facilitates the forming of the movable chamber 412 from the opening 413 and the assembly of the damping member 43 from the opening 413.
(damper 4 elastic support structure)
The existing washing machine is suspended in the washing machine box body 01 under the action of the suspension spring 3, and vibration signals of the washing machine can be transmitted to the box body 01 through the suspension spring 3, so that vibration radiation noise of the box body 01 is easily caused. In order to avoid the radiation noise of the box body 01 caused by the vibration signal transmitted to the box body 01 through the suspension spring 3 in the movement process of the washing machine, the invention designs an elastic part structure in the shock absorber 4, so that the shock absorber 4 has the supporting and damping effects at the same time, the washing machine barrel 2 can be supported by the shock absorber 4 through the action of the elastic part without depending on the supporting action of the suspension spring 3, the vibration signal is mainly transmitted to the washing machine base 02 and the box body 01 through the shock absorber 4, and the vibration transmission through the suspension spring 3 is greatly reduced.
Specifically, referring to fig. 6 to 7, the piston rod 42 includes a plug 421 and a connection 422, the plug 421 is a portion of the piston rod 42 that is plugged into the housing 41, and the connection 422 is a portion of the piston rod 42 that is exposed out of the housing 41; the connecting part 422 of the vibration absorber 4 is sleeved with an elastic part, the elastic part can support the barrel 2 through the self-resetting deformation action of the elastic part, and the suspension spring 3 at the top end of the barrel 2 only has a limiting effect and no suspension effect any more, so that in the movement process of the barrel 2 of the washing machine, vibration signals of the box body 01 are transmitted to the base 02 of the washing machine through the vibration absorber 4, and the vibration absorber 4 can reduce vibration noise signals through the self-damping vibration attenuation action, and meanwhile, the vibration signals are prevented from being transmitted to the box body 01 through the suspension spring 3.
In some embodiments, the elastic member is a rubber member or a compression spring 44, and the following description will be given by taking the elastic member as the spring 44, where the spring 44 is connected to the connecting portion 422 of the piston rod 42, always in a compressed state, and supports the cylinder 2 by the spring 44.
The outer diameter of the housing 41 at the end of the opening 413 is larger than the inner diameter of the spring 44, so that the end of the opening 413 of the housing 41 can limit one end of the spring 44; the piston rod 42 is provided with a stopper 4221, the stopper 4221 can limit the other end of the spring 44, and the spring 44 is further limited between the end of the opening 413 of the housing 41 and the stopper 4221.
According to the washing machine, the shock absorber 4 has the supporting and damping effects at the same time through the designed spring-damping integrated shock absorber 4, and the vibration of the barrel 2 is mainly transmitted to the base 02 and the box body 01 through the shock absorber 4, so that the vibration transmitted to the base 02 is reduced, and the problem that the vibration of the barrel 2 is transmitted to the box body 01 through the suspension spring 3 is solved.
(vibration damper 4 vibration damping connection structure)
The washing machine of the invention designs a vibration damping connecting structure on the vibration damper 4, and realizes the connection of the vibration damper 4 with the cylinder body 2 and the base 02 respectively through the vibration damping connecting structure, thereby reducing the vibration noise of the washing machine.
Referring to fig. 8-11, the shock absorber 4 further includes:
the first damping block 45 is connected to one end, far away from the piston rod 42, of the shell 41, the first damping block 45 is connected with the cylinder 2 through a first fixing plate 46, specifically, the first fixing plate 46 is connected to the outer side of the first damping block 45, and the first fixing plate 46 is fixedly connected with the cylinder 2, so that the vibration reduction connection of the vibration absorber 4 and the cylinder 2 is realized;
and the second damping block 48 is connected to one end, far away from the shell 41, of the piston rod 42, the second damping block 48 is connected with the base 02 through a second fixing plate 49, specifically, the second fixing plate 49 is connected to the outer side of the second damping block 48, and the second fixing plate 49 is fixedly connected with the base 02, so that the vibration reduction connection of the vibration absorber 4 and the base 02 is realized.
The vibration reduction connection mode is adopted at the two ends of the vibration reducer, and the vibration signal of the barrel 2 is transmitted to the base 02 and the box body 01 through the vibration reducer 4 to be greatly reduced, so that the vibration noise of the washing machine is further reduced.
In some embodiments, the first damping block 45 and the second damping block 48 are made of rubber, and may be circular or square;
the center of the first damping block 45 is provided with a through hole which is sleeved at the end of the housing 41, the periphery of the housing 41 is provided with a first stop surface 415, the first damping block 45 is sleeved on the housing 41 and stopped by the first stop surface 415 to limit the downward movement of the first damping block 45, the end of the housing 41 is connected with a first nut 47 to limit the upward movement of the first damping block 45, and the first damping block 45 is limited on the housing 41 through the first nut 47 and the first stop surface 415. When the first damping block 45 is assembled, the through hole of the first damping block 45 is aligned with the housing 41 and sleeved on the housing 41, and the first nut 47 is screwed on the end of the housing 41, so that the assembly mode is simple and convenient.
Based on the above embodiment, referring to fig. 10, the outer diameter of the upper end of the housing 41 is smaller, that is, the housing 41 has a first small diameter end 416 at the upper end and a first large diameter end 417 at the lower end, the first small diameter end 416 and the first large diameter end 417 are connected by a first inclined surface, and the first stop surface 415 is the first inclined surface.
Similarly, the center of the second damping block 48 has a through hole, which is sleeved on the end of the piston rod 42, the outer periphery of the piston rod 42 is provided with a second stop surface 423, the second damping block 48 is sleeved on the piston rod 42 and stopped by the second stop surface 423 to limit the upward movement of the second damping block 48, the end of the piston rod 42 is connected with a second nut 400 to limit the downward movement of the second damping block 48, and the second damping block 48 is limited on the piston rod 42 by the second nut 400 and the second stop surface 423. When the second damping block 48 is assembled, the through hole of the second damping block 48 is aligned with the piston rod 42 and sleeved on the piston rod 42, and then the second nut 400 is screwed on the end of the piston rod 42, so that the assembly mode is simple and convenient.
Based on the above embodiment, referring to fig. 11, the outer diameter of the lower end of the piston rod 42 is smaller, that is, the piston rod 42 has a second small diameter end 424 at the lower end and a second large diameter end 425 at the upper end, the second small diameter end 424 and the second large diameter end 425 are connected by a second inclined surface, and the second stop surface 423 is a second inclined surface.
In some embodiments, and with continued reference to FIG. 9, the first and second anchor plates 46, 49 are plate-shaped, the first anchor plate 46 engaging the first damping mass 45, and the second anchor plate 49 engaging the second damping mass 48; first mounting hole has been seted up on first stationary blade 46, wears to establish first mounting hole with the bolt and can realize being connected of first stationary blade 46 and barrel 2, has seted up the second mounting hole on the second stationary blade 49, wears to establish the second mounting hole with the bolt and can realize being connected of second stationary blade 49 and base 02.
In some embodiments, the upper end and the lower end of the first damping block 45 (and the second damping block 48) are respectively attached with a mounting plate 4000, and the mounting plate 4000 is arranged to isolate the first damping block 45 (and the second damping block 48) from contact wear with adjacent components.
Among the three technical means for reducing the vibration noise in the washing process of the washing machine, the vibration noise reduction device can be independently applied to the washing machine, and any two or three technical means can also be combined and applied.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A washing machine, characterized by comprising:
a housing;
a cylinder disposed in the case; and
and one end of the shock absorber is connected with the cylinder through a first damping block, and the other end of the shock absorber is connected with the shell through a second damping block, so that the shock absorber is connected with the cylinder and the shell in a shock-absorbing manner respectively, and further the vibration transmitted from the cylinder to the shell is reduced.
2. The washing machine as claimed in claim 1, wherein the damper comprises:
a housing having a vibration damping chamber with one end open;
the axial extension direction of the piston rod is defined as the vertical direction, and one end of the piston rod is inserted into the vibration reduction cavity from the opening of the shell and can slide up and down relative to the vibration reduction cavity;
the first damping block is connected to one end, far away from the piston rod, of the shell;
the first fixing piece is fixedly connected to the outer side of the first damping block and fixedly connected with the cylinder;
the second damping block is connected to one end, far away from the shell, of the piston rod; and
and the second fixing plate is fixedly connected to the outer side of the second damping block and connected with the machine shell.
3. A washing machine as claimed in claim 2 wherein the first stationary plate is engaged with the first damping block and the second stationary plate is engaged with the second damping block.
4. The washing machine as claimed in claim 2, wherein a first stop surface is provided on an outer circumference of the housing, the first damping block is sleeved on the housing and stopped by the first stop surface to limit the first damping block from moving downward, and a first nut is connected to an end of the housing to limit the first damping block from moving upward;
the piston rod is provided with a second stop surface, the second damping block is sleeved on the piston rod and stopped by the second stop surface so as to limit the second damping block to move upwards, and the end part of the piston rod is connected with a second nut so as to limit the second damping block to move downwards.
5. The washing machine as claimed in claim 4, wherein the housing has a first small diameter end at an upper end and a first large diameter end at a lower end, the first stop surface being a first slope connected between the first small diameter end and the first large diameter end;
the piston rod is provided with a second large-diameter end located at the upper end and a second small-diameter end located at the lower end, and the second stop surface is a second inclined surface connecting the second large-diameter end and the second small-diameter end.
6. The washing machine as claimed in claim 2, wherein the first fixing plate is provided with a first mounting hole to be coupled with the tub by a fastener through the first mounting hole, and the second fixing plate is provided with a second mounting hole to be coupled with the cabinet by a fastener through the second mounting hole.
7. The washing machine as claimed in claim 2, wherein the piston rod is sleeved with a spring, and two ends of the spring respectively abut against the open end of the casing and the second damping block.
8. The washing machine as claimed in claim 2, wherein a movable chamber having an inner diameter greater than that of the vibration reduction chamber is provided in the vibration reduction chamber to form stepped surfaces at both ends where the movable chamber is connected with the vibration reduction chamber;
the shock absorber further includes:
the damping piece is sleeved on the piston rod and located in the movable cavity, the frictional damping force P1 between the inner ring of the damping piece and the piston rod is larger than the frictional damping force P2 between the outer ring of the damping piece and the shell, the step surface can stop the up-down moving range of the damping piece, and the damping piece and the movable cavity have a distance a in the up-down direction.
9. The washing machine as claimed in claim 8, wherein the damping member is a damping bar, or the damping member includes a first damping bar and a second damping bar, the second damping bar is sleeved outside the first damping bar.
10. The washing machine as claimed in claim 8, wherein P1 is 70N to 120N; p2 ═ 30N to 60N; a is 4 mm-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084401.5A CN111254649A (en) | 2020-02-10 | 2020-02-10 | Washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084401.5A CN111254649A (en) | 2020-02-10 | 2020-02-10 | Washing machine |
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| Publication Number | Publication Date |
|---|---|
| CN111254649A true CN111254649A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010084401.5A Pending CN111254649A (en) | 2020-02-10 | 2020-02-10 | Washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113235267A (en) * | 2021-04-27 | 2021-08-10 | 海信（山东）冰箱有限公司 | Washing machine dehydration control method and device and washing machine |
| CN113235266A (en) * | 2021-04-27 | 2021-08-10 | 海信（山东）冰箱有限公司 | Washing machine dehydration control method and device and washing machine |
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| JP2010187976A (en) * | 2009-02-19 | 2010-09-02 | Toshiba Corp | Drum-type washing machine |
| JP2011004839A (en) * | 2009-06-24 | 2011-01-13 | Panasonic Corp | Washing machine |
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| DE10046712A1 (en) * | 1999-10-14 | 2001-04-19 | Suspa Holding Gmbh | Shock absorber esp. for washing machine with spinning operation with tubular housing with plunger guided sliding in this and measuring element is respectively connected with housing and plunger and their relative position |
| JP2010187976A (en) * | 2009-02-19 | 2010-09-02 | Toshiba Corp | Drum-type washing machine |
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| CN113235267A (en) * | 2021-04-27 | 2021-08-10 | 海信（山东）冰箱有限公司 | Washing machine dehydration control method and device and washing machine |
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| CN113235267B (en) * | 2021-04-27 | 2023-08-18 | 海信冰箱有限公司 | Washing machine dehydration control method and device and washing machine |
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Application publication date: 20200609 |