CN110195322B - Vibration damping balancing device and vertical pulsator washing machine - Google Patents
Vibration damping balancing device and vertical pulsator washing machine Download PDFInfo
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- CN110195322B CN110195322B CN201810164464.4A CN201810164464A CN110195322B CN 110195322 B CN110195322 B CN 110195322B CN 201810164464 A CN201810164464 A CN 201810164464A CN 110195322 B CN110195322 B CN 110195322B
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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
- D06F37/24—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 vertical axis
- D06F37/245—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The invention provides a vibration damping balancing device. The vibration damping balance device includes: the annular machine body is provided with a plurality of liquid inlet channels distributed along the circumferential direction so as to receive fluid injected from the outside of the vibration damping balancing device; and at least one part of the guide pipes extends along the longitudinal direction, and the starting ends of the guide pipes are fixedly connected with the plurality of liquid inlet channels respectively so as to discharge the fluid to the outside of the vibration damping balancing device. The vibration damping balancing device can be arranged in a rotating device which uses fluid in the working process and has eccentricity in a specific area, and the fluid is injected into the guide pipe on the opposite side of the eccentricity to offset the eccentricity on the eccentric side, so that the balance of the rotating device is better, and the vibration noise is reduced.
Description
Technical Field
The invention relates to the field of rotating devices, in particular to a vibration reduction balancing device and a vertical pulsator washing machine with the same.
Background
When the impeller washing machine dehydrates clothes, the vibration of the system is large when the high-speed dehydration is carried out due to the eccentricity of the clothes, the resonance of the system and the like, and large noise is generated, so that a user feels uncomfortable, and particularly the sleep of the user can be influenced by starting the washing machine at night.
In the prior art, a balance ring is generally disposed at an upper end or a lower end of an inner tub of a washing machine, and a balance liquid is injected into the balance ring to balance a load. However, the structure of the balance ring can only reduce the number of times of box collision (the collision between the outer tub of the washing machine and the machine casing) through the hysteresis of the liquid flow during the low-speed starting stage of the washing machine. When the washing machine enters a high-speed dehydration stabilization stage, the liquid distribution in the balance ring tends to be stable, and the liquid distribution does not play a role in resisting the eccentricity of the whole machine. In view of the above, there is a need for a vibration damping balancer that can improve the balance of a rotating device.
Disclosure of Invention
It is an object of the first aspect of the present invention to provide a vibration damping and balancing apparatus which can improve the balance of a rotating apparatus.
An object of the second aspect of the present invention is to provide a vertical pulsator washing machine having the vibration reduction balancing device.
In particular, according to a first aspect of the present invention, there is provided a vibration damping balance device comprising:
the annular machine body is provided with a plurality of liquid inlet channels distributed along the circumferential direction so as to receive fluid injected from the outside of the vibration damping balancing device; and
and the initial ends of the plurality of draft tubes are fixedly connected with the plurality of liquid inlet channels respectively so as to discharge the fluid to the outside of the vibration damping balancing device.
Optionally, the liquid inlet channel comprises:
the guide section is provided with a guide channel which is gradually reduced downwards so as to guide the fluid into a guide pipe matched with the liquid inlet channel; and
the connecting section extends vertically downwards from the lower end of the flow guide section, and the plurality of flow guide pipes are fixedly connected with the plurality of connecting sections respectively.
Optionally, the annular body is provided with a plurality of circumferentially distributed seal cavities; and is
Liquid is arranged in each sealing cavity; wherein
The plurality of sealing cavities and the plurality of liquid inlet channels are respectively arranged inside and outside the annular machine body.
Optionally, the draft tube is composed of an upper draft tube extending in a longitudinal direction and a lower draft tube extending in a horizontal direction from a bottom end of the upper draft tube.
Optionally, the lower draft tube is configured to extend inwardly in a horizontal direction to direct the outflow of fluid.
According to a second aspect of the present invention, there is provided a vertical pulsator washing machine, comprising an outer tub defining an accommodation space and configured to be stationary, an inner tub rotatable in the outer tub, and a vibration damping balancing device as described above, wherein the annular body is disposed on the top of the inner tub, and the flow guide pipes are disposed to be distributed circumferentially along the inner tub.
Optionally, the vertical pulsator washing machine further comprises a water injection device for injecting water into the vibration reduction balancing device, wherein the water injection device comprises:
and a liquid injection pipe configured to inject a fluid into the vibration reduction balancing device when the rotation speed of the inner barrel is greater than 50 rpm.
Optionally, the distance between the lower surface of the liquid outlet of the liquid injection pipe and the upper surface of the annular body in the longitudinal direction is 4-10 mm, so as to prevent the liquid injection pipe from interfering with the annular body in the process that the annular body rotates along with the inner barrel.
Optionally, at least a lower portion of the pour spout is configured to extend in a longitudinal direction; and is
The liquid outlet of annotating the liquid pipe sets up to be flat shape to control rivers flow direction.
Optionally, a horizontal central axis of a liquid outlet of the liquid injection pipe along the length direction of the liquid injection pipe is tangent to inscribed circles of liquid inlets of the liquid inlet channels so as to reduce or eliminate sputtering;
the size of a plurality of inlet channels's inlet does the liquid outlet of annotating the liquid pipe is along at least 6 times of its thickness direction's size to guarantee to the liquid volume of annotating that damping balancing unit pours into.
The vibration damping balancing device of the invention can be arranged in a rotating device (such as a washing machine) which uses fluid (such as water) in the working process and generates eccentricity (with a specific deflection direction) in a specific area, and the fluid is injected into a guide pipe on the opposite side of the eccentricity to offset the eccentricity on the eccentric side, so that the balance of the rotating device is better, and the vibration noise is reduced.
Furthermore, the vibration reduction balancing device provided by the invention has the advantages that the annular machine body is provided with the plurality of sealing cavities and the plurality of guide pipes, so that multiple balanced vibration reduction can be carried out when the vertical pulsator washing machine operates a dehydration program, the eccentricity of clothes is balanced efficiently, the box collision frequency is reduced, the dehydration vibration noise is obviously reduced, and the purposes of vibration reduction and noise reduction are achieved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of a vibration damping and balancing apparatus according to one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the annular body of the vibration-damping balance device of FIG. 1;
FIG. 3 is a schematic cross-sectional view of a vertical pulsator washing machine in a first state according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the vertical pulsator washing machine in a second state according to one embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a vertical pulsator washing machine in a third state according to an embodiment of the present invention;
FIG. 6 is a schematic top view of the vertical pulsator washing machine shown in FIG. 3;
FIG. 7 is a schematic structural view of a liquid injection pipe of the vertical pulsator washing machine shown in FIG. 3.
Detailed Description
FIG. 1 is a schematic block diagram of a vibration damping and balancing apparatus 100 according to one embodiment of the present invention; fig. 2 is a schematic cross-sectional view of the ring body 110 of the vibration damping and balancing apparatus 100 shown in fig. 1. Referring to fig. 1 and 2, the vibration damping balance device 100 may include an annular body 110 and a plurality of draft tubes 120 at least a portion of which extends in a longitudinal direction. The annular body 110 has a plurality of inlet channels 111 distributed circumferentially to receive fluid injected from outside the vibration damping balance device 100. The beginning ends of the draft tubes 120 are fixedly connected to the plurality of inlet passages 111, respectively, to discharge the fluid out of the vibration damping balance device 100.
The vibration-damping balancing device 100 of the present invention may be installed in a rotating device (e.g., a washing machine) which uses a fluid (e.g., water) during operation and has eccentricity (having a specific deflection direction) in a specific region, and the fluid is injected into the fluid guide tube 120 on the opposite side of the eccentricity to offset the eccentricity of the eccentricity side, thereby improving the balance of the rotating device and reducing vibration noise.
The formula of the movement included angle of the water flow in the flow guide pipe 120 is as follows:
a＝r×ω2 (2)
wherein: alpha is a water flow movement included angle; a is the centrifugal acceleration in m/s2(ii) a Omega is the angular speed of the inner barrel, and the unit is rad/s; r is the inner barrel radius in m.
When the rotating device is eccentric in a specific area, the fluid injected into the fluid guide tube 120 slowly flows downward by the centrifugal force, thereby offsetting the eccentric amount of the eccentric side of the rotating device.
The vibration damping balancing device 100 of the present invention is particularly suitable for use in a vertical pulsator washing machine 10. The technical solution of the present invention will be described in detail below by taking the example of disposing the vibration damping balancing device 100 in the vertical pulsator washing machine 10.
Fig. 3 is a schematic cross-sectional view of the vertical pulsator washing machine 10 in a first state according to one embodiment of the present invention. Referring to fig. 3, the vertical pulsator washing machine 10 may generally include an outer tub 500 defining an accommodation space and configured to be stationary and an inner tub 600 rotatable within the outer tub 500. The outer tub 500 may be fixed in the cabinet 400 by a suspension support mechanism (not shown), and the inner tub 600 may be axially rotated by the driving mechanism 200 and the driving shaft 300. The drive mechanism 200 may be a motor. Drain holes (not shown) are uniformly distributed on the circumferential wall and the bottom wall of the inner tub 600 to drain water in the inner tub 600.
In particular, the vertical pulsator washing machine 10 may further include a vibration damping balancing device 100, an annular body 110 of which may be disposed at the top of the inner tub 600, and the guide pipes 120 may be disposed to be distributed circumferentially along the inner tub 600. In this embodiment, 12 to 24 liquid inlet channels 111, i.e. 12 to 24 liquid guiding pipes 120, such as 12, 15, 18, 21 or 24 liquid guiding pipes, are uniformly distributed on the circumference of the annular body 110. In particular, the installation of 18 flow conduits 120 in the circumferential direction of the annular body 110 is particularly suitable for the vertical pulsator washing machine 10, and can achieve better vibration reduction effect. In some embodiments, a plurality of draft tubes 120 may be disposed inside the inner tub 600. In other embodiments, a plurality of flow guide pipes 120 may be disposed between the inner tub 600 and the outer tub 500.
The vertical pulsator washing machine 10 may further include a water injection device for injecting water into the vibration reduction balancing device 100. The water injection means may include a pour spout 700 and a control valve for controlling the opening and closing of the pour spout 700. When the rotating speed of the inner barrel 600 is 55rpm to 65rpm, the vertical pulsator washing machine 10 reaches a first resonance point. The liquid injection pipe 700 may be configured to inject fluid into the vibration reduction balancing device 100 when the rotation speed of the inner tub 600 is greater than 50rpm (before the vertical pulsator washing machine 10 reaches the first resonance point); when the vertical pulsator washing machine 10 finishes the dehydration process, the water supply is stopped. It will be appreciated by those skilled in the art that the vibration damping balancer 100 of the present invention is most suitable for injecting fluid in a rotation speed range of 50rpm to 700rpm, for example, 50rpm, 250rpm, 450rpm or 700 rpm. In the present invention, the rotation speed of the inner tub 600 may be detected using a gyroscope. The amount of water injected into the injection tube 700 may be set to 0.1L/min to 0.3L/min, for example, 0.1L/min, 0.2L/min, or 0.3L/min. The liquid injection pipe 700 may also be controlled to inject water into the inner tub 600 when the vertical pulsator washing machine 10 operates a washing process or a rinsing process.
FIG. 4 is a schematic cross-sectional view of the vertical pulsator washing machine 10 in a second state according to one embodiment of the present invention; fig. 5 is a schematic cross-sectional view of the vertical pulsator washing machine 10 in a third state according to one embodiment of the present invention. Referring to fig. 3, when the vertical pulsator washing machine 10 is in the first state, the vertical pulsator washing machine 10 is in a balanced state (the center of gravity of the inner tub 600 is on the axis of the inner tub 600). Referring to fig. 4, when the vertical pulsator washing machine 10 is in the second state, laundry 800 is eccentric in the inner tub 600 (the center of gravity of the inner tub 600 is not on the axis of the inner tub 600), and the eccentric is rotated to the opposite side to below the liquid injection pipe 700. Referring to fig. 5, when the vertical pulsator washing machine 10 is in the third state, the laundry 800 is eccentric in the inner tub 600 (the center of gravity of the inner tub 600 is not on the axis of the inner tub 600), and the eccentric side is rotated to below the liquid injection pipe 700.
When the eccentric reverse side of the inner barrel 600 rotates to the lower part of the liquid injection pipe 700, the liquid injection pipe 700 injects fluid into the draft tube 120 on the eccentric reverse side of the inner barrel 600; when the eccentric side of the inner barrel 600 rotates to a position below the injection pipe 700, the injection pipe 700 injects fluid into the inner barrel 600. That is, when there is no eccentricity of the laundry 800, the center of gravity of the inner tub 600 is on the axis of the inner tub 600, and the inner tub 600 is not inclined; when the laundry 800 is eccentric in the inner tub 600, the top of the inner tub 600 on the eccentric side is lower, and the top of the inner tub 600 on the opposite side is higher. When the eccentric reverse side (higher side) of the inner barrel 600 rotates to the lower part of the liquid injection pipe 700, the liquid outlet 710 of the liquid injection pipe 700 is just opposite to the liquid inlet 1111 of the side liquid inlet channel 111, and the liquid injection pipe 700 injects fluid into the side liquid injection pipe to offset the eccentric amount of the eccentric side of the inner barrel 600; when the eccentric side (lower side) of the inner barrel 600 rotates to the lower side of the liquid injection pipe 700, the liquid outlet 710 of the liquid injection pipe 700 is offset from the liquid inlet 1111 of the side liquid inlet channel 111, and the liquid injection pipe 700 injects the fluid into the inner barrel 600 and flows out through the water discharge hole of the inner barrel 600. In other words, assuming that the laundry 800 is eccentric to the left side of the inner tub 600 (as shown in fig. 4), the top of the left side of the inner tub 600 is lower, the top of the right side of the inner tub 600 is higher, the liquid outlet 710 of the liquid injection pipe 700 is opposite to the liquid inlet 1111 of the right liquid inlet channel 111, and the fluid is injected into the side liquid inlet pipe to offset the eccentricity of the left side of the inner tub 600; after the inner barrel 600 rotates for half a circle (as shown in fig. 5), the clothes 800 are eccentric on the right side of the inner barrel 600, the top of the left side of the inner barrel 600 is higher, the top of the right side of the inner barrel 600 is lower, the liquid outlet 710 of the liquid injection pipe 700 is staggered with the liquid inlet 1111 of the liquid inlet channel 111 on the right side, and the liquid injection pipe 700 injects the fluid into the inner barrel 600.
Referring to fig. 2, in some embodiments, each inlet channel 111 may include a flow guide segment 1112 and a connection segment 1113. The flow guide segment 1112 may be configured as a flow guide channel tapering downward to guide the fluid into the flow guide tube 120 engaged with the liquid inlet channel 111. In some preferred embodiments, the inner section of the flow guiding segment 1112 (the side close to the axial center of the annular body 110) may be provided as an inclined surface. In other words, the cross-section of the flow guiding section 1112 of the liquid inlet channel 111 along the common plane of the axis of the flow guiding pipe 120 and the axis of the annular body 110 matching with the liquid inlet channel 111 is right trapezoid, and the right-angled waist of the right trapezoid is disposed outside the flow guiding section 1112, so as to increase the opening size of the liquid inlet 1111 of the liquid inlet channel 111, minimize the sputtering generated when the liquid inlet channel 111 is filled with water, relatively reduce the pipe diameter size of the flow guiding pipe 120 matching with the liquid inlet channel 111, and ensure the effective washing volume of the vertical pulsator washing machine 10. The connecting section 1113 may be configured to vertically extend downward from the lower end of the flow guiding section 1112, and the plurality of flow guiding pipes 120 are configured to be fixedly connected with the plurality of connecting sections 1113, respectively. The plurality of flow guide tubes 120 and the plurality of connecting sections 1113 can be fixedly connected by common connecting methods such as clamping, fastening, bonding and the like.
In some embodiments, the annular body 110 may be provided with a plurality of circumferentially distributed seal cavities 116. Liquid can be arranged in each sealed cavity 116, the liquid can rotate along with the inner barrel 600, and a certain centripetal force is generated through the hysteresis (inertia) of the liquid flow to offset the eccentric amount of the eccentric side of the vertical pulsator washing machine 10, so that the vertical pulsator washing machine 10 quickly passes through a resonance point, and the frequency of box collision is reduced. In some preferred embodiments of the present invention, the liquid in the sealed cavity 116 may be 50% saline. An even number of ribbed plates can be uniformly distributed in the circumferential direction of the vertical pulsator washing machine 10 so as to further offset the eccentric amount of the eccentric side of the vertical pulsator washing machine.
The vibration reduction balancing device 100 of the invention can perform multiple balancing vibration reduction when the vertical pulsator washing machine 10 operates a dehydration program by arranging the plurality of sealing cavities 116 and the plurality of guide pipes 120 on the annular machine body 110, efficiently balance the eccentricity of clothes, reduce the frequency of box collision, obviously reduce the dehydration vibration noise and achieve the purposes of vibration reduction and noise reduction.
In some preferred embodiments, the plurality of sealing cavities 116 and the plurality of inlet passages 111 may be respectively disposed inside and outside the annular body 110 (inside on the side close to the axis of the annular body 110, and outside on the side away from the axis of the annular body 110) to enhance the effect of the draft tube 120 to offset the eccentricity of the eccentric side. The liquid inlet channel 111 and the sealing cavity 116 of the annular body 110 can be uniformly arranged on the circumference of the annular body 110. In some alternative embodiments, the plurality of seal cavities 116 may be disposed on a side away from the axis of the annular body 110, or may be disposed on a circumferential circumference of the annular body 110 at a distance from the inlet passage 111.
The draft tube 120 may be composed of an upper draft tube 120 extending in a longitudinal direction and a lower draft tube 120 extending in a horizontal direction from a bottom end of the upper draft tube 120. The upper draft tube 120 and the lower draft tube 120 may be in smooth transition. The vibration damping and balancing device 100 may further include a limiting member 130. The limiting member 130 may be provided with a plurality of limiting holes uniformly distributed along a circumferential direction thereof. The plurality of limiting holes can be arranged to extend in the horizontal direction, and the bottoms of the plurality of flow guide pipes 120 can be arranged to be respectively matched with the plurality of limiting holes, so that the flow guide pipes 120 are more stably installed. The ring body 110 and the limiting member 130 can be fixed in the vertical pulsator washing machine 10 by fastening, screwing, or the like.
In some embodiments, the lower draft tube 120 may be configured to extend inwardly in a horizontal direction to direct the outflow of fluid. The fluid in the fluid guide tube 120 can accumulate a certain amount of fluid outside the lower fluid guide tube 120 under the action of centrifugal force, which is more beneficial to the balance of the vertical pulsator washing machine 10. In other embodiments, the lower draft tube 120 may be configured to extend outwardly in a horizontal direction to facilitate the drainage of fluids within the draft tube 120.
In some embodiments, the annular body 110 may be provided with an inner baffle 114 and an outer baffle 112 extending upward from the top inner side and the top outer side thereof, respectively, to guide water injected from the outside of the vibration damping balance device 100 into the draft tube 120. The inner and outer baffles 114 and 112 are provided so as to be inscribed in and circumscribed with the inlet 1111 of the plurality of inlet channels 111, respectively. The heights of the inner baffle 114 and the outer baffle 112 relative to the inlet 1111 of the inlet channel 111 may be equal. A plurality of partition plates 113 for guiding water flow may be disposed between the inner baffle plate 114 and the outer baffle plate 112, and projections of the plurality of partition plates 113 on a horizontal plane are respectively disposed between the liquid inlets 1111 of every two adjacent liquid inlet channels 111. The height of each baffle 113 is smaller than the height of the inner baffle 114 and the height of the outer baffle 112, so as to avoid water splashing outside the inner baffle 114 and the outer baffle 112 during the process of injecting water from the vibration damping balancing device 100 to the draft tube 120. The ring body 110 may also be provided with a rim 115 extending upwardly from its top inside edge. An annular groove is formed between the rim 115, the upper surface of the ring body 110 and the inner baffle 114, so that when the eccentric side (lower side) of the inner tub 600 rotates to the lower side of the injection pipe 700, fluid is injected into the annular groove first, and the annular groove overflows into the inner tub 600, thereby preventing the eccentric amount of the eccentric side from increasing due to the direct injection of fluid into the inner tub 600.
The liquid injection pipe 700 may be disposed such that when the center of gravity of the inner barrel 600 is located on the axis of the inner barrel 600, the distance between the lower surface of the liquid outlet 710 and the upper surface of the ring-shaped body 110 in the longitudinal direction may be 4-10 mm, for example, 4mm, 6mm, 8mm, or 10mm, so as to prevent the liquid injection pipe 700 from interfering with the ring-shaped body 110 during the rotation of the ring-shaped body 110 with the inner barrel 600.
FIG. 6 is a schematic top view of the vertical pulsator washing machine 10 shown in FIG. 3; fig. 7 is a schematic structural view of a liquid injection pipe 700 of the vertical pulsator washing machine 10 shown in fig. 3. Referring to fig. 6 and 7, at least a lower portion of the pour spout 700 may be configured to extend in the longitudinal direction, and the liquid outlet 710 of the pour spout 700 may be configured to have a flat shape so as to control the flow direction of the water. The horizontal central axis of the outlet 710 of the inlet tube 700 along its length may be tangent to the inscribed circle of the inlets 1111 of the inlet channels 111 to reduce or eliminate sputtering. The size of the liquid inlet 1111 of the plurality of liquid inlet channels 111 may be at least 6 times the size of the liquid outlet 710 of the liquid inlet pipe 700 in the thickness direction thereof to secure the amount of liquid injection into the vibration damping balance device 100.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A vertical pulsator washing machine comprising:
an outer tub defining an accommodating space and configured to be stationary;
an inner tub rotatable within the outer tub; and
a vibration dampening balance device comprising:
the annular machine body is provided with a plurality of liquid inlet channels distributed along the circumferential direction so as to receive fluid injected from the outside of the vibration damping balancing device; and
a plurality of draft tubes at least a part of which extends along the longitudinal direction, the initial ends of the draft tubes being fixedly connected with the plurality of liquid inlet channels respectively so as to discharge the fluid to the outside of the vibration damping balancing device; wherein
The annular machine body is arranged at the top of the inner barrel, and the guide pipe is arranged to be distributed along the circumferential direction of the inner barrel and keep a conduction state, so that fluid in the guide pipe flows downwards under the action of centrifugal force when the inner barrel is eccentric, and the eccentric amount of the eccentric side of the inner barrel is offset.
2. The vertical pulsator washing machine as claimed in claim 1, wherein the liquid inlet passage comprises:
the guide section is provided with a guide channel which is gradually reduced downwards so as to guide the fluid into a guide pipe matched with the liquid inlet channel; and
the connecting section extends vertically downwards from the lower end of the flow guide section, and the plurality of flow guide pipes are fixedly connected with the plurality of connecting sections respectively.
3. The vertical pulsator washing machine as claimed in claim 1,
the annular machine body is provided with a plurality of sealing cavities distributed along the circumferential direction; and is
Liquid is arranged in each sealing cavity; wherein
The plurality of sealing cavities and the plurality of liquid inlet channels are respectively arranged inside and outside the annular machine body.
4. The vertical pulsator washing machine as claimed in claim 1,
the honeycomb duct is composed of an upper honeycomb duct extending along the longitudinal direction and a lower honeycomb duct extending from the bottom end of the upper honeycomb duct along the horizontal direction.
5. The vertical pulsator washing machine as claimed in claim 4,
the lower draft tube is configured to extend inwardly in a horizontal direction to guide the outflow of fluid.
6. The vertical pulsator washing machine as claimed in claim 1, further comprising a water injection device for injecting water to the vibration reduction balancing device, wherein the water injection device comprises:
and a liquid injection pipe configured to inject a fluid into the vibration reduction balancing device when the rotation speed of the inner barrel is greater than 50 rpm.
7. The vertical pulsator washing machine as claimed in claim 6,
the distance between the lower surface of the liquid outlet of the liquid injection pipe and the upper surface of the annular machine body in the longitudinal direction is 4-10 mm, so that the liquid injection pipe is prevented from interfering with the annular machine body in the process that the annular machine body rotates along with the inner barrel.
8. The vertical pulsator washing machine as claimed in claim 6,
at least the lower part of the liquid injection pipe is arranged to extend along the longitudinal direction; and is
The liquid outlet of annotating the liquid pipe sets up to be flat shape to control rivers flow direction.
9. The vertical pulsator washing machine as claimed in claim 8,
the horizontal central axis of the liquid outlet of the liquid injection pipe along the length direction is tangent to the inscribed circles of the liquid inlets of the liquid inlet channels so as to reduce or eliminate sputtering;
the size of a plurality of inlet channels's inlet does the liquid outlet of annotating the liquid pipe is along at least 6 times of its thickness direction's size to guarantee to the liquid volume of annotating that damping balancing unit pours into.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810164464.4A CN110195322B (en) | 2018-02-27 | 2018-02-27 | Vibration damping balancing device and vertical pulsator washing machine |
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| CN201810164464.4A CN110195322B (en) | 2018-02-27 | 2018-02-27 | Vibration damping balancing device and vertical pulsator washing machine |
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| CN110195322B true CN110195322B (en) | 2021-06-22 |
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| CN114063666B (en) * | 2020-07-30 | 2023-07-21 | 广东美的白色家电技术创新中心有限公司 | Control method, household appliance and computer readable storage medium |
| CN114318779B (en) * | 2020-09-30 | 2023-03-10 | 无锡小天鹅电器有限公司 | Barrel subassembly and clothing treatment facility |
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| CN102191667A (en) * | 2010-03-18 | 2011-09-21 | 松下电器产业株式会社 | Washing machine |
| CN104120584A (en) * | 2013-04-26 | 2014-10-29 | 海尔集团公司 | Washing machine with active water injection balancing ring and control method thereof |
| CN104120583A (en) * | 2013-04-26 | 2014-10-29 | 海尔集团公司 | Washing machine with water filling port type balancing ring and control method thereof |
| US20150013397A1 (en) * | 2013-07-09 | 2015-01-15 | Samsung Electronics Co., Ltd. | Washing machine |
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2018
- 2018-02-27 CN CN201810164464.4A patent/CN110195322B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191667A (en) * | 2010-03-18 | 2011-09-21 | 松下电器产业株式会社 | Washing machine |
| CN104120584A (en) * | 2013-04-26 | 2014-10-29 | 海尔集团公司 | Washing machine with active water injection balancing ring and control method thereof |
| CN104120583A (en) * | 2013-04-26 | 2014-10-29 | 海尔集团公司 | Washing machine with water filling port type balancing ring and control method thereof |
| US20150013397A1 (en) * | 2013-07-09 | 2015-01-15 | Samsung Electronics Co., Ltd. | Washing machine |
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