CN106319857B - Drum washing machine - Google Patents
Drum washing machine Download PDFInfo
- Publication number
- CN106319857B CN106319857B CN201610951150.XA CN201610951150A CN106319857B CN 106319857 B CN106319857 B CN 106319857B CN 201610951150 A CN201610951150 A CN 201610951150A CN 106319857 B CN106319857 B CN 106319857B
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- washing machine
- dampers
- damper
- frame
- drum washing
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- 238000005406 washing Methods 0.000 title claims abstract description 63
- 238000013016 damping Methods 0.000 claims abstract description 40
- 239000000725 suspension Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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 relates to the technical field of washing machines, in particular to a drum washing machine, which comprises: the barrel body is supported in the frame through the damper, and the motor is arranged at the bottom of the barrel body and is positioned on one side of the axial vertical plane of the barrel body; the dampers are distributed on two sides of the axial vertical plane of the barrel body, and the number of the dampers which are positioned on the same side of the barrel body with the motor is larger than that of the dampers on the other side. According to the drum washing machine, the drum body is supported in the frame through the plurality of dampers, and the vibration of the drum body is reduced through the dampers, so that the vibration amplitude of the drum body can be effectively reduced; and because the motor sets up on the staving, and the cylinder in the staving is high-speed rotatory under the drive of motor, the weight of motor will increase the amplitude of staving in the cylinder direction of rotation to set up the more attenuator of number than opposite side number in staving motor side and can produce better damping effect to the staving.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a drum washing machine.
Background
The drum washing machine is recognized by users and increasingly popularized as a high-end product in the washing machine. The principle of the drum washing machine is that clothes are lifted to a certain height by a lifter and then fall to collide with the inner wall of a barrel, so that oil stains are stripped from the clothes. The inner barrel of the washing machine is hung on the frame through the suspension springs, when the motor rotates at a high speed, the inner barrel of the washing machine generates large amplitude, the running track is approximately circular, the mass center of the inner barrel and the mass center of the suspension system are difficult to guarantee at the same position, the inner barrel can generate torsion in the front-back direction at the moment, and when the torsion is serious, the inner barrel collides with the inner wall of the washing machine, the reliability cannot be guaranteed, and even the displacement of the washing machine is generated, so that the washing machine cannot run.
Disclosure of Invention
Accordingly, there is a need to provide a drum washing machine capable of effectively reducing the vibration amplitude of the inner tub of the washing machine, in order to solve the problems that the inner tub generates large amplitude and collides with the outer shell of the washing machine, even the washing machine is displaced, and the like.
A drum washing machine comprising: the barrel body is supported in the frame through the damper, and the motor is arranged at the bottom of the barrel body and is positioned on one side of the axial vertical plane of the barrel body; the dampers are distributed on two sides of the axial vertical plane of the barrel body, and the number of the dampers which are positioned on the same side of the barrel body with the motor is larger than that of the dampers on the other side.
In one embodiment, three dampers are provided, wherein two dampers are positioned on the same side of the vertical plane in the axial direction of the barrel body and are close to the motor; the other damper is positioned on the other side of the axial middle vertical surface of the barrel body.
In one embodiment, one end of each of the three dampers is connected with the bottom of the barrel body, and the other end of each of the three dampers is connected with the frame; the projections of connecting lines between the three dampers and the connecting points of the frame on a horizontal plane form an isosceles triangle.
In one embodiment, the apex angle of the isosceles triangle is between 30 and 35.
In one embodiment, the damper comprises a damping cylinder and a damping rod, the upper end of the damping cylinder is connected with the barrel body, and the lower end of the damping rod is connected with the frame; the upper end of the damping rod is inserted into the damping cylinder from the lower end of the damping cylinder and can move in the damping cylinder in a reciprocating mode.
In one embodiment, the upper end of the damper cylinder is rotatable relative to the tub body, and the lower end of the damper rod is rotatable relative to the frame.
In one embodiment, the upper end of the damping cylinder is provided with a first mounting hole, and the lower end of the damping rod is provided with a second mounting hole.
In one embodiment, rubber rings are arranged in the first mounting hole and the second mounting hole.
In one embodiment, the upper end of the damping cylinder is provided with a first ball head, and the lower end of the damping rod is provided with a second ball head.
In one embodiment, the drum washing machine further comprises a suspension spring, one end of the suspension spring is connected with the top of the tub, and the other end of the suspension spring is connected with the frame.
According to the drum washing machine, the drum body is supported in the frame through the dampers, and the vibration of the drum body is reduced through the dampers, so that the vibration amplitude of the drum body can be effectively reduced; and because the motor sets up on the staving, and the cylinder in the staving is high-speed rotatory under the drive of motor, the weight of motor will increase the amplitude of staving in the cylinder direction of rotation to set up the more attenuator of number than opposite side number in staving motor side and can produce better damping effect to the staving.
Drawings
Fig. 1 is a schematic structural diagram of a drum washing machine according to an embodiment of the present invention;
FIG. 2 is a schematic view illustrating the angular distribution of the damper and the frame of the drum washing machine according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a damper of a drum washing machine according to an embodiment of the present invention.
Wherein:
100-a frame;
110-a suspension spring;
200-barrel body;
300-a damper;
310-a damping cylinder; 311-first mounting hole;
320-a damping rod; 321-a second mounting hole;
400-motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the drum washing machine of the present invention is further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a drum washing machine, including: the electric bucket comprises a frame 100, a bucket body 200, a damper 300 and a motor 400, wherein the bucket body 200 is supported in the frame 100 through the damper 300, and the motor 400 is arranged at the bottom of the bucket body 200 and is positioned on one side of the axial vertical plane of the bucket body 200; the number of the dampers 300 is plural, the plurality of dampers 300 are distributed on both sides of the axial vertical plane of the tub 200, and the number of the dampers 300 located on the same side of the tub 200 as the motor 400 is greater than the number of the dampers 300 on the other side.
It should be noted that, the tub 200 refers to an entirety including a rotatable drum and a washing machine tub for accommodating the rotatable drum, and the motor 400 is used for driving the rotatable drum to rotate, thereby causing the tub 200 to vibrate violently, which is how to reduce the vibration amplitude of the entire tub 200.
In this embodiment, the damping characteristics of the damper 300 are used to reduce the vibration of the tub 200 and consume the kinetic energy thereof, and the damper 300 provides the movement resistance to the tub 200, thereby reducing the amplitude of the tub 200. When the washing machine is operated, particularly, when the washing machine enters a dehydration program from a washing program, a large amplitude is easily generated in the process of increasing the speed of the drum from low-speed rotation to high-speed rotation, the drum can be rapidly increased from a low-speed state to a high-speed state through the damper 300, and as the washing machine is operated as long as the rotating speed of the drum is higher than the rotating speed of the resonance frequency, the amplitude of vibration of the tub 200 is reduced more and more along with the increase of the rotating speed of the drum, so that the energy of the vibration can be prevented from being transmitted to the shell of the washing machine, and the tub 200 is.
In addition, the plurality of dampers 300 are non-uniformly distributed, and the number of dampers 300 located on the same side of the tub 200 as the motor 400 is greater than that of dampers 300 located on the other side, so that the influence of the weight of the motor 400 on the amplitude can be reduced, and a better vibration reduction effect can be achieved.
Further, the drum washing machine further includes a suspension spring 110, and one end of the suspension spring 110 is connected to the top of the tub 200 and the other end is connected to the frame 100. The number of the suspension springs 110 may be one, two, three, and the like, in this embodiment, two suspension springs 110 are provided, and the two suspension springs 110 are symmetrically distributed on two sides of the top axis of the barrel 200, so as to further reduce the vibration of the barrel 200.
In a preferred embodiment, there are three dampers 300, wherein two dampers 300 are located on the same side of the vertical plane of the barrel 200 in the axial direction, close to the motor 400; another damper 300 is located on the other side of the axial mid-plane of the tub 200.
Referring to fig. 1 and 2, further, one ends of three dampers 300 are connected to the bottom of the tub 200, and the other ends are connected to the frame 100; the projections of the connecting lines between the three dampers 300 and the connecting points of the frame 100 on the horizontal plane form an isosceles triangle, wherein the vertex angle of the isosceles triangle is 30-35 degrees.
Since there are many factors causing the drum 200 of the drum washing machine to vibrate largely, especially in the dehydration process, in which laundry is unevenly distributed in the drum to form an eccentric load, an exciting force acting periodically is generated, which is a main cause of the vibration of the washing machine. The center of the resultant spring force of the suspension spring 110 of the washing machine, the center of the resultant resistance of the damper 300, and the total center of mass of the entire tub 200 have deviations, so that the tub 200 of the washing machine generates left-right swing and twisting in two transition stages of starting and stopping, and the movement of the tub 200 of the washing machine is a combined movement of the left-right swing and the twisting, and the displacement curve is complicated and variable.
The resultant force center of the exciting forces is located on the center plane of the tub 200 and the drum rotation axis line as viewed from the side of the washing machine, the resultant force center of the exciting forces is located at the drum rotation axis center as viewed from the front of the washing machine, and the resultant force center of the exciting forces is located at the middle point of the height of the triangle formed by the dampers 300 as viewed from the top of the washing machine. The total mass center of the whole barrel body 200 can be adjusted through the balancing weight, so that the total mass center of the whole barrel body 200 passes through the resultant force center of the exciting force and the resultant spring force center of the suspension spring 110, the projection of the total mass center of the whole barrel body 200 on the horizontal plane is located on the height of an isosceles triangle formed by the three dampers 300, and the stress on the side of the single damper 300 is twice that on the side of the double dampers 300 according to the decomposition of any force system on the plane.
Under the condition that the angle of the damper 300 supporting the tub 200 is fixed, assuming that the eccentricity formed by the load is fixed, the larger the vertex angle alpha of an isosceles triangle formed by the three dampers 300 is, the larger the component force of the tub 200 borne by the damper 300 is, the larger the torsion angle of the damper 300 is, so that the amplitude of vibration of the tub 200 is larger, and therefore, the larger the force conducted to the outer shell of the washing machine is, the larger the vibration of the machine shell is, and therefore, the acting force on the machine shell can be reduced by reducing the angle value of alpha. However, when the angle α is as small as 30 ° or less, the suspension angle of the suspension spring 110 of the washing machine with respect to the vertical direction is greater than 12 °, causing the tub 200 to largely shake left and right in the washing machine frame 100, and even to collide with the frame 100 and the washing machine casing to be deformed.
Therefore, the projections of the connecting lines between the three dampers 300 and the connecting points of the frame 100 on the horizontal plane are isosceles triangles, wherein the vertex angles of the isosceles triangles are 30-35 degrees, so that the dampers 300 play a better vibration damping role for the tub 200, thereby avoiding the phenomenon of causing large vibration and even displacement of the washing machine, being beneficial to maintaining the stability of the operation of the washing machine, and being capable of avoiding the phenomenon of causing deformation due to the large amplitude of the tub 200 impacting the frame 100 and the shell of the washing machine.
Referring to fig. 3, as a preferred embodiment, the damper 300 includes a damper cylinder 310 and a damper rod 320, an upper end of the damper cylinder 310 is connected to the tub 200, and a lower end of the damper rod 320 is connected to the frame 100; the upper end of the damping rod 320 is insert-fitted into the damping cylinder 310 from the lower end of the damping cylinder 310 and is reciprocally movable within the damping cylinder 310.
The damper 300 of the present embodiment generates a large reverse frictional force by reciprocating between the damping rod 320 and the damping cylinder 310, so that when the damping rod 320 is coupled to the frame 100 and the damping cylinder 310 is coupled to the tub 200, a motion resistance can be provided to reduce the vibration amplitude of the tub 200.
Further, the upper end of the damping cylinder 310 can rotate relative to the tub 200, and the lower end of the damping rod 320 can rotate relative to the frame 100, so that the angle of the damper 300 in each direction can be effectively adjusted, and the phenomenon that the tub 200 is jammed during movement can be avoided.
There are various structures in which the upper end of the damping cylinder 310 rotates relative to the tub 200 and the lower end of the damping rod 320 can rotate relative to the frame 100, and preferably, the upper end of the damping cylinder 310 is provided with a first mounting hole 311 and the lower end of the damping rod 320 is provided with a second mounting hole 321.
Specifically, the bottom of the barrel body 200 is provided with a fixing screw hole, and a long screw passes through the first mounting hole 311 and is in threaded connection with the fixing screw of the barrel body 200; the frame 100 is provided with a fixing seat, the fixing seat is provided with a pin hole, and the pin passes through the second mounting hole 321 and the pin hole in sequence to fix two ends of the pin with the fixing seat.
Further, rubber rings are arranged in the first mounting hole 311 and the second mounting hole 321, and the effects of reducing vibration and preventing abrasion are achieved.
Or, the upper end of the damping cylinder 310 is provided with a first ball head, and the lower end of the damping rod 320 is provided with a second ball head. Specifically, a first spherical arc seat is arranged at the bottom of the barrel body 200, and a first ball head can be clamped in the first spherical arc seat; the frame 100 is provided with a second spherical arc seat, and the second ball head can be clamped in the second spherical arc seat.
Through the above embodiments, the drum washing machine provided in the embodiment of the present invention greatly weakens the vibration amplitude of the tub 200 during the operation of the washing machine by the supporting manner of the damper 300, avoids the phenomenon of causing large vibration and even displacement of the washing machine, is beneficial to maintaining the stability of the operation of the washing machine, and can avoid the phenomenon of deformation caused by the large amplitude of the tub 200 impacting the frame 100 and the casing of the washing machine.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A drum washing machine characterized by comprising: the electric bucket comprises a frame (100), a bucket body (200), a damper (300) and a motor (400), wherein the bucket body (200) is supported in the frame (100) through the damper (300), and the motor (400) is arranged at the bottom of the bucket body (200) and is positioned on one side of an axial vertical plane of the bucket body (200); the number of the dampers (300) is multiple, the dampers (300) are distributed on two sides of the axial vertical plane of the barrel body (200), and the number of the dampers (300) which are positioned on the same side of the barrel body (200) with the motor (400) is larger than that of the dampers (300) on the other side;
the number of the dampers (300) is three, wherein two dampers (300) are positioned on the same side of the axial vertical plane of the barrel body (200) and are close to the motor (400); the other damper (300) is positioned on the other side of the axial middle vertical plane of the barrel body (200);
one ends of the three dampers (300) are connected with the bottom of the barrel body (200), and the other ends of the three dampers are connected with the bottom of the frame (100); the projections of connecting lines between the three dampers (300) and the connecting points of the frame (100) on a horizontal plane form an isosceles triangle.
2. A drum washing machine as claimed in claim 1, characterized in that the isosceles triangle has a vertex angle of 30 ° to 35 °.
3. The drum washing machine according to claim 1 or 2, wherein the damper (300) comprises a damper cylinder (310) and a damper rod (320), an upper end of the damper cylinder (310) is connected with the tub (200), and a lower end of the damper rod (320) is connected with the frame (100);
the upper end of the damping rod (320) is insert-fitted into the damping cylinder (310) from the lower end of the damping cylinder (310) and is reciprocally movable within the damping cylinder (310).
4. A drum washing machine according to claim 3, characterized in that the upper end of the damper cylinder (310) is rotatable with respect to the tub (200), and the lower end of the damper rod (320) is rotatable with respect to the frame (100).
5. A drum washing machine according to claim 4, characterized in that the upper end of the damper cylinder (310) is provided with a first mounting hole (311) and the lower end of the damper rod (320) is provided with a second mounting hole (321).
6. The drum washing machine as claimed in claim 5, wherein a fixing screw hole is provided at the bottom of the tub (200), and a long screw is inserted through the first mounting hole (311) and threadedly engaged with the fixing screw of the tub (200); the frame (100) is provided with a fixed seat, the fixed seat is provided with a pin hole, and a pin is utilized to sequentially penetrate through the second mounting hole (321) and the pin hole so that two ends of the pin are fixed with the fixed seat.
7. A drum washing machine according to claim 5, characterized in that rubber rings are arranged in the first mounting hole (311) and the second mounting hole (321).
8. A drum washing machine according to claim 4, characterized in that the upper end of the damping cylinder (310) is provided with a first bulb and the lower end of the damping rod (320) is provided with a second bulb.
9. A drum washing machine according to claim 1 or 2, characterized by further comprising a suspension spring (110), wherein one end of the suspension spring (110) is connected with the top of the tub (200) and the other end is connected with the frame (100).
10. A drum washing machine according to claim 9, characterized in that the number of suspension springs (110) is one, two or three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951150.XA CN106319857B (en) | 2016-10-26 | 2016-10-26 | Drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951150.XA CN106319857B (en) | 2016-10-26 | 2016-10-26 | Drum washing machine |
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| Publication Number | Publication Date |
|---|---|
| CN106319857A CN106319857A (en) | 2017-01-11 |
| CN106319857B true CN106319857B (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610951150.XA Active CN106319857B (en) | 2016-10-26 | 2016-10-26 | Drum washing machine |
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| CN (1) | CN106319857B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401022B (en) * | 2017-09-06 | 2019-06-14 | 海信（山东）冰箱有限公司 | A kind of control method of washing machine, control device and washing machine |
| CN112899998A (en) * | 2021-01-12 | 2021-06-04 | 珠海格力电器股份有限公司 | Drum type washing machine washing drum assembly and drum type washing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206204617U (en) * | 2016-10-26 | 2017-05-31 | 珠海格力电器股份有限公司 | Drum washing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19959031C1 (en) * | 1999-12-08 | 2001-03-22 | Miele & Cie | Front-loading drum washing machine has oscillation dampers between washing unit and washing machine frame provided with plastics couplings and threaded fixing pins at either end |
| JP3636120B2 (en) * | 2001-09-10 | 2005-04-06 | 株式会社日立製作所 | Drum washing machine |
| AU2004201444B2 (en) * | 2003-04-18 | 2007-04-05 | Lg Electronics Inc. | Washing machine with reduced vibration |
| JP4555755B2 (en) * | 2005-09-08 | 2010-10-06 | パナソニック株式会社 | Drum washing machine |
| EP2557217B1 (en) * | 2011-02-23 | 2014-06-11 | Panasonic Corporation | Drum-type washing machine |
| EP2843097B1 (en) * | 2013-08-27 | 2016-12-28 | Panasonic Corporation | Front-loading-type washing machine |
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- 2016-10-26 CN CN201610951150.XA patent/CN106319857B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206204617U (en) * | 2016-10-26 | 2017-05-31 | 珠海格力电器股份有限公司 | Drum washing machine |
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