CN100451215C - Resonance preventing structure of washing machine - Google Patents
Resonance preventing structure of washing machine Download PDFInfo
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- CN100451215C CN100451215C CNB031208576A CN03120857A CN100451215C CN 100451215 C CN100451215 C CN 100451215C CN B031208576 A CNB031208576 A CN B031208576A CN 03120857 A CN03120857 A CN 03120857A CN 100451215 C CN100451215 C CN 100451215C
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- washing machine
- resonance
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- strip shape
- shape concave
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Abstract
The present invention provides a resonance preventing structure of a washing machine, which comprises a top surface metal plate, a front metal plate, a metal plate, an operation panel and a door, wherein the top surface metal plate is arranged on the upper surface of the washing machine. The front metal plate is formed in the front, and two sides are formed by the metal plate. Various actions of a drum type washing machine are controlled by the operation panel, and the interior of the washing machine is selectively opened and closed by the door. The metal plate on the side surface of the washing machine is at least provided with more than one sliver-shaped groove; when the sliver-shaped groove part is recessed in a rectangle shape, the recessed rectangle interior is protruded towards the opposite direction of the recessing direction. The present invention has the advantages that resonance generated when each washing machine developed currently rotates at high speed can be totally prevented, the damage and the destruction of various components, which are generated because of the resonance, are prevented, noise generated when the washing machine rotates at high speed can also be reduced, and thus, a user's dissatisfaction of the noise and the nonreliance performance of the product can be eliminated.
Description
Technical field
The present invention is the structure of relevant washing machine, and the particularly relevant resonance that is formed at the washing machine on the washing machine profile prevents structure.
Background technology
General washing machine is the machine of each sharp clothing of washing.Washing machine can be divided into substantially: pulsator washer that washs according to the driving of pulsator and the tumbling-box washing machine that washs according to the driving of cylinder.
In above-mentioned tumbling-box washing machine, putting into various washed cylinders is that horizontal direction is lain and put for washing machine body.So tumbling-box washing machine setting height(from bottom) meeting step-down on the whole, thereby can improve space availability ratio.Therefore in the demand of tumbling-box washing machine in recent years the trend of increase is arranged.
The contour structures of shown in Figure 1 is general tumbling-box washing machine.As seen from Figure 1, the profile of tumbling-box washing machine in the past is by: the guidance panel 40 of the exercises of the end face metallic plate 10 above forming, the front metal plate 20 that forms the front, a pair of side metal plate 30 that forms two sides, index drum formula washing machine substantially and optionally opens and closes 50 formations of washing machine inside.
Be formed with washed input port 21 on the above-mentioned front metal plate 20, the door 50 that can open and close washed input port 21 is installed on the washed input port 21.Door 50 is to be installed on the washed input port 21 in the mode that dead axle rotates.In the inside of tumbling-box washing machine, be equipped with in the cylinder 60 of the rotatable washing of carrying out clothing.
Tumbling-box washing machine in the past is when work, because the rotation of its inner cylinder 60 can cause the vibration of washing machine.Therefore, the problem that causes noise owing to vibration is arranged.
Because the resonance that the rotation of above-mentioned cylinder 60 causes, it is bigger that noise will become, and because resonance can bring the damage and the fault of the various parts of washing machine.Therefore, draw in the past to above-mentioned Research on Vibration, the profile of washing machine has very big influence to vibration.
Thus, as shown in Figure 2, concavo-convex formation elongate recesses portion 31 in the face of each side metal plate 30 of washing machine, thus screen is kept away the generation that resonance is eliminated in the formation of specific resonant frequency.
But the thickness direction of just past each side metal plate 30 that the shape of above-mentioned elongate recesses portion 31 is simple falls in.Such shape is during to high speed rotating, and its effect is very faint.First resonant frequency of considering tumbling-box washing machine is approximately 22.9Hz (1374rpm), if when carrying out the high speed dewatering function, the resonant frequency in the high speed rotating field is about 1600rpm.When high speed rotating, tumbling-box washing machine in the past is owing to the generation of resonating and then cause the increase of vibration and the increase of noise like this.
Owing to the development of motor technology, the danger that is caused by resonance rose significantly in recent years.Therefore exigence can be eliminated the configuration design of the washing machine of above-mentioned resonant frequency.
Summary of the invention
The present invention provides a kind of purpose that reduces noise that reaches, and also prevents various parts simultaneously owing to damage and destruction that resonance takes place, can avoid the resonance that the washing machine of resonance takes place when high speed motion washing machine to prevent structure.
For solving the deficiency in the above-mentioned technology, the resonance that technical scheme of the present invention provides a kind of washing machine prevents structure, comprise the end face metallic plate above the washing machine, be formed on the front metal plate of front, form the metallic plate of two sides, the guidance panel of the exercises of index drum formula washing machine and optionally open and close the door of washing machine inside, wherein, on the metallic plate of washing machine side, be provided with and have an above strip shape groove at least, described strip shape concave part is with rectangular shape recessed the time, and protrude toward the opposite direction of recessed direction more recessed rectangle inside.
Effect of the present invention is the design size according to each position of strip shape concave part provided by the invention, can prevent the resonance of generation in high speed when rotation of each washing machine of up-to-date exploitation fully, because adopt under the situation of said structure size, the frequency that forms first resonance is greatly about 39.8Hz.Simultaneously, therefore the noise when can also successful reduction washing machine rotating at a high speed can eliminate the user to the discontented of noise with to the not reliability of product.
Description of drawings
Fig. 1 is the outward appearance oblique view of general roller washing machine;
Fig. 2 is the I-I sectional drawing of Fig. 1;
Fig. 3 is the profile oblique view of roller washing machine of the present invention;
Fig. 4 is the II-II sectional drawing of Fig. 3;
Fig. 5 is the structural front view of strip shape concave part shape of the present invention;
Fig. 6 is the III-III sectional drawing of Fig. 5;
Fig. 7 is the figure of SN ratio of each key element resonance frequency value of elongate recesses portion.
Among the figure:
300: side metal lath 310: the strip shape concave part
A: the projection width at the angled transition position of long side surface
B: the projection width at the angled transition position of short side
R: the radius of curvature D at position, turning: the recessed degree of depth of strip shape concave part
The specific embodiment
Below, the resonance that describes washing machine of the present invention in conjunction with Fig. 3 to Fig. 7 in detail prevents structure.
The resonance of washing machine of the present invention prevents structure, comprise end face metallic plate above the washing machine, form the front metal plate of front, the metallic plate that forms two sides, index drum formula washing machine exercises guidance panel and optionally open and close the door of washing machine inside, an above strip shape concave part 310 is set on the metallic plate of washing machine side, described strip shape concave part 310 is with rectangular shape recessed the time, and the inner opposite direction toward recessed direction of recessed rectangle is protruded.
The recessed degree of depth of strip shape concave part 310 is set to more than the 2.5mm.
The recessed degree of depth of strip shape concave part 310 is set between the 3.5mm-4.5mm.
The projection width at the long side surface angled transition position, both sides of strip shape concave part 310 is greater than the projection width of the short laterally inclined intermediate location in both sides of strip shape concave part 310.
The projection width at the angled transition position of the long side surface of strip shape concave part 310 is set to 30mm-50mm; The projection width of its short laterally inclined intermediate location is set to 15mm-25mm.
The position, four turnings of strip shape concave part 310 is provided with circular chamfering.
The radius of curvature at the position, four turnings of strip shape concave part 310 is arranged between the 15mm-25mm.
The radius of curvature that projection width that the projection width that the recessed degree of depth of strip shape concave part 310 is set to the angled transition position of 4.5mm, its long side surface is set to the angled transition position of 30mm, its short side is set to 25mm, its each position, turning is set to 25mm.
The resonance of washing machine of the present invention prevents that structure is achieved in that
At first, as shown in Figure 3 be the profile oblique view of roller washing machine of the present invention; Fig. 4 is the II-II sectional drawing of Fig. 3; Fig. 5 be strip shape concave part shape of the present invention want portion's front view; Fig. 6 is the III-III sectional drawing of Fig. 5; Fig. 7 is the figure of SN ratio of each key element resonance frequency value of elongate recesses portion.
Resonance according to the tumbling-box washing machine of the embodiment of the invention prevents that structure from being:
On the shell side metallic plate 300 that constitutes the tumbling-box washing machine profile, the strip shape concave part 310 of at least more than one that forms with concaveconvex shape.Each strip shape concave part 310 approximately is when setting degree of depth formation so that rectangular shape is recessed, and the recessed rectangle inside that sets the degree of depth is protruded toward the opposite direction of recessed direction and set height.
Therefore, when strip shape concave part 310 past inboards were recessed, the recessed rectangle inside of sending out the depthkeeping degree was protruded toward the opposite direction of recessed direction and is set height.So first resonance frequency value of tumbling-box washing machine can be in higher Hz scope, thereby covibration can not take place with the highest velocity of rotation rotation in washing machine yet when carrying out dehydrating function.Therefore, also prevented resonance and the damage of the part of washing machine that causes.
Certainly, also can be repeatedly several times the concaveconvex shape of above-mentioned strip shape concave part 310, thus further eliminate covibration completely.But, bring very big difficulty can for like this mfg. moulding die engineering.
In the present invention, position, inside edge in the recessed position of described strip shape concave part 310, with the rectangular edge be starting point with certain gradient toward the certain length of inner transition.And, the position, four turnings of strip shape concave part 310 with fixed radius of curvature R form circular chamfering.
The A of projection width at the both sides long side surface 311 angled transition positions of above-mentioned strip shape concave part 310 is compared with the B of projection width at the 312 angled transition positions, short side, both sides of strip shape concave part 310, the A of projection width at both sides long side surface 311 angled transition positions is longer, and promptly A is greater than B.
So design is in order to carry out its manufacturing engineering, and another purpose also is in order to allow the resonant frequency of said structure reach quite high value as far as possible.
What of the protrusion height at the protrusion position of above-mentioned strip shape concave part 310 do not have great influence to the resonance aspect.But, consider problem attractive in appearance, the protrusion position of strip shape concave part 310 does not protrude from side metal plate 300.
The peak frequency of particularly considering the general motor that drives washing machine drum might reach 1600rpm to 2000rpm in the future, in the present invention, prevents that structure from can not resonate yet even motor rotates resonance with 2000rpm.
The recessed depth D of above-mentioned strip shape concave part 310 accomplishes as much as possible that greater than 3.5mm preferably recessed depth D is between 3.5mm-4.5mm.
If the recessed depth D of above-mentioned strip shape concave part 310 is less than 3.5mm, resonant frequency will be greatly between 26-30Hz.Cylinder is with the rotating speed rotation of 2000rpm like this, and the possibility that resonance produces will rise greatly.Therefore, recessed depth D is worthless less than 3.5mm.
In addition, the recessed depth D of above-mentioned strip shape concave part 310 is greater than 4.5mm, even cylinder can not resonate with the rotating speed rotation of 2000rpm yet.But on aesthetic and manufacturing engineering, all may go wrong.Therefore, also be less-than-ideal numerical value.Therefore, recessed depth D also is worthless greater than 4.5mm.
So the recessed depth D of above-mentioned strip shape concave part 310 is arranged in the scope of 2.5mm-3.5mm, under the situation of cylinder with the rotating speed rotation of 1600rpm, the possibility that resonance takes place also is very little.
In the middle of the structure of the strip shape concave part 310 that the opposite direction of the invention described above is protruded, variation along with the recessed depth D of elongate recesses portion 310, resonant frequency respective change amplitude also is sizable, and the Fig. 7 of SN ratio and the experimental data among the table 1 by the expression resonant frequency obtain confirming.
The experimental data of above-mentioned table 1 is to utilize each element (the recessed depth D of strip shape concave part 310 that constitutes strip shape concave part 310, the A of projection width at the angled transition position of its long side surface, the B of projection width at the angled transition position of its short side, the radius of curvature R at position, turning etc.), the experimental result that obtains by the part collocation method.
(table 1)
The recessed SN at the position, turning of the short side of experiment long side surface is than first
Width (A) width (B) radius of curvature (R) degree of depth (D) resonant frequency
(mm) (mm) (mm) (mm) (Hz)
1 30(A1) 15(B1) 15(R1) 2.5(D1) 29.0 28.2
2 30(A1) 20(B2) 20(R2) 3.5(D2) 30.7 34.3
3 30(A1) 25(B3) 25(R3) 4.5(D3) 32.0 39.8
4 40(A2) 15(B1) 20(R2) 4.5(D3) 31.8 38.9
5 40(A2) 20(B2) 25(R3) 2.5(D1) 28.9 27.8
6 40(A2) 25(B3) 15(R1) 3.5(D2) 30.5 33.3
7 50(A3) 15(B1) 25(R3) 3.5(D2) 30.1 32.1
8 50(A3) 20(B2) 15(R1) 4.5(D3) 31.4 37.4
9 50(A3) 25(B3) 20(R2) 2.5(D1) 28.6 26.9
Finally, be not difficult to find out that the influence that first resonant frequency is subjected to the recessed depth D of strip shape concave part 310 is maximum by above-mentioned experimental result.
The strip shape concave part 310 that uses in the above-mentioned experiment is that suggested its of the present invention is shaped as concaveconvex structure.
Then, can know by above-mentioned experimental result, each position of suggested in the present invention strip shape concave part 310, first resonant frequency that is produced by the difformity size can reach more than the 27Hz and even more than the 33Hz.Therefore, can cover the frequency in the dewatering speed field of washing machine, thereby not resonate.
From above experimental data as can be known, strip shape concave part 310 each position optimum size of the present invention are: the radius of curvature R that B of projection width that the A of projection width that the recessed depth D that the strip shape groove is 310 ones is set to the angled transition position of 4.5mm, its long side surface is set to the angled transition position of 30mm, its short side is set to 25mm, its each position, turning is set to 25mm.
What certainly, above-mentioned physical dimension was considered at first is the influence of the recessed depth D of strip shape concave part 310 to first resonant frequency.Therefore, at first having adopted and can easy to the full extent manufacturing, also is safest recessed depth D numerical value.Then, be benchmark with this recessed depth D numerical value, and then each the key element size in the decision performance optimum range.
That is, adopt under the situation of said structure size, the frequency that forms first resonance is greatly about 39.8Hz.Therefore, even cylinder can not resonate with the rotation of 2380rpm rotating speed yet.Thereby the damage of the parts that can prevent the generation of vibrating noise and bring thereupon.Particularly the design size at each position of strip shape concave part of prompting according to the present invention can prevent the resonance of the generation the when high speed of each washing machine of exploitation is rotated recently fully.Because adopt under the situation of said structure size, the frequency that forms first resonance is greatly about 39.8Hz.
Meanwhile, since above-mentioned effect, the noise when reduction washing machine that can be successful rotates at a high speed.Therefore can eliminate the user to the discontented of noise with to the not reliability of product.
Claims (8)
1, a kind of resonance of washing machine prevents structure, comprise end face metallic plate above the washing machine, form the front metal plate of front, the metallic plate that forms two sides, index drum formula washing machine exercises guidance panel and optionally open and close the door of washing machine inside, it is characterized in that: an above strip shape concave part (310) is set on the metallic plate of washing machine side, recessed the time, protrude by the inner opposite direction toward recessed direction of recessed rectangle with rectangular shape for described strip shape concave part (310).
2, the resonance of washing machine according to claim 1 prevents structure, it is characterized in that: the recessed degree of depth of strip shape concave part (310) is set to more than the 2.5mm.
3, the resonance of washing machine according to claim 1 prevents structure, it is characterized in that: the recessed degree of depth of strip shape concave part (310) is set between the 3.5mm-4.5mm.
4, the resonance of washing machine according to claim 3 prevents structure, it is characterized in that: the projection width at the long side surface angled transition position, both sides of strip shape concave part (310) is greater than the projection width of the short laterally inclined intermediate location in both sides of strip shape concave part (310).
5, the resonance of washing machine according to claim 4 prevents structure, it is characterized in that: the projection width at the angled transition position of the long side surface of strip shape concave part (310) is set to 30mm-50mm; The projection width of its short laterally inclined intermediate location is set to 15mm-25mm.
6, the resonance of washing machine according to claim 1 prevents structure, it is characterized in that: the position, four turnings of strip shape concave part (310) is provided with circular chamfering.
7, the resonance of washing machine according to claim 6 prevents structure, it is characterized in that: the radius of curvature at the position, four turnings of strip shape concave part (310) is arranged between the 15mm-25mm.
8, the resonance of washing machine according to claim 1 prevents structure, it is characterized in that: the radius of curvature that projection width that the projection width that the recessed degree of depth of strip shape concave part (310) is set to the angled transition position of 4.5mm, its long side surface is set to the angled transition position of 30mm, its short side is set to 25mm, its each position, turning is set to 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208576A CN100451215C (en) | 2003-03-25 | 2003-03-25 | Resonance preventing structure of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208576A CN100451215C (en) | 2003-03-25 | 2003-03-25 | Resonance preventing structure of washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532325A CN1532325A (en) | 2004-09-29 |
| CN100451215C true CN100451215C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031208576A Expired - Fee Related CN100451215C (en) | 2003-03-25 | 2003-03-25 | Resonance preventing structure of washing machine |
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| CN109249954A (en) * | 2017-07-12 | 2019-01-22 | 香港理工大学 | The vertical stop part of High Speed Railway Trains bogie primary of novel built-in high-damping |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330046A (en) * | 1979-09-28 | 1982-05-18 | Armand Lerner | Sound barrier |
| JPH0584376A (en) * | 1991-09-30 | 1993-04-06 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
| US5870907A (en) * | 1995-08-29 | 1999-02-16 | Samsung Electronics Co., Ltd. | Drum type clothes washer having fluid type vibration attenuation apparatus |
| CN1334372A (en) * | 2000-07-20 | 2002-02-06 | 三星电子株式会社 | Casing of washing machine |
| CN2506674Y (en) * | 2001-09-25 | 2002-08-21 | 博西威家用电器有限公司 | Vibration-resistant cylinder washing machine |
| US6474112B1 (en) * | 1999-10-13 | 2002-11-05 | Lg Electronics Inc. | Device for attenuating vibration of drum type washing machine and method for controlling washing |
-
2003
- 2003-03-25 CN CNB031208576A patent/CN100451215C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330046A (en) * | 1979-09-28 | 1982-05-18 | Armand Lerner | Sound barrier |
| JPH0584376A (en) * | 1991-09-30 | 1993-04-06 | Matsushita Electric Ind Co Ltd | Drum type washing machine |
| US5870907A (en) * | 1995-08-29 | 1999-02-16 | Samsung Electronics Co., Ltd. | Drum type clothes washer having fluid type vibration attenuation apparatus |
| US6474112B1 (en) * | 1999-10-13 | 2002-11-05 | Lg Electronics Inc. | Device for attenuating vibration of drum type washing machine and method for controlling washing |
| CN1334372A (en) * | 2000-07-20 | 2002-02-06 | 三星电子株式会社 | Casing of washing machine |
| CN2506674Y (en) * | 2001-09-25 | 2002-08-21 | 博西威家用电器有限公司 | Vibration-resistant cylinder washing machine |
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| Publication number | Publication date |
|---|---|
| CN1532325A (en) | 2004-09-29 |
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Granted publication date: 20090114 |